{"code":"T43","type":"category","title":"Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified","codeAlso":[],"includes":["adverse effect of correct substance properly administered","poisoning by overdose of substance","poisoning by wrong substance given or taken in error","underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed"],"modern_v":"official26","codeFirst":[", for adverse effects, the nature of the adverse effect, such as:","adverse effect NOS (T88.7)","aspirin gastritis (K29.-)","blood disorders (D56-D76)","contact dermatitis (L23-L25)","dermatitis due to substances taken internally (L27.-)","nephropathy (N14.0-N14.2)"],"excludes1":["toxic reaction to local anesthesia in pregnancy (O29.3-)"],"excludes2":["appetite depressants (T50.5-)","barbiturates (T42.3-)","benzodiazepines (T42.4-)","drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-)","methaqualone (T42.6-)","psychodysleptics [hallucinogens] (T40.7-T40.9-)","abuse and dependence of psychoactive substances (F10-F19)","abuse of non-dependence-producing substances (F55.-)","immunodeficiency due to drugs (D84.821)","drug reaction and poisoning affecting newborn (P00-P96)","pathological drug intoxication (inebriation) (F10-F19)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["T43.0","T43.011","T43.011A","T43.011D","T43.011S","T43.012","T43.012A","T43.012D","T43.012S","T43.013","T43.013A","T43.013D","T43.013S","T43.014","T43.014A","T43.014D","T43.014S","T43.015","T43.015A","T43.015D","T43.015S","T43.016","T43.016A","T43.016D","T43.016S","T43.021","T43.021A","T43.021D","T43.021S","T43.022","T43.022A","T43.022D","T43.022S","T43.023","T43.023A","T43.023D","T43.023S","T43.024","T43.024A","T43.024D","T43.024S","T43.025","T43.025A","T43.025D","T43.025S","T43.026","T43.026A","T43.026D","T43.026S","T43.1","T43.1X","T43.1X1","T43.1X1A","T43.1X1D","T43.1X1S","T43.1X2","T43.1X2A","T43.1X2D","T43.1X2S","T43.1X3","T43.1X3A","T43.1X3D","T43.1X3S","T43.1X4","T43.1X4A","T43.1X4D","T43.1X4S","T43.1X5","T43.1X5A","T43.1X5D","T43.1X5S","T43.1X6","T43.1X6A","T43.1X6D","T43.1X6S","T43.2","T43.201","T43.201A","T43.201D","T43.201S","T43.202","T43.202A","T43.202D","T43.202S","T43.203","T43.203A","T43.203D","T43.203S","T43.204","T43.204A","T43.204D","T43.204S","T43.205","T43.205A","T43.205D","T43.205S","T43.206"],"inclusionTerms":[],"sibling_titles":{"code":"T43.206","title":"Underdosing of unspecified antidepressants","isBillable":false},"useAdditionalCode":["code(s) to specify:","manifestations of poisoning","underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)","underdosing of medication regimen (Z91.12-, Z91.13-)"],"clinicalDefinition":"Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified is a non-billable ICD-10-CM category code (T43). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed.","officialDefinition":"Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified is a non-billable ICD-10-CM category code (T43). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T43","A: initial encounter","D: subsequent encounter","S: sequela"],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[{"code":"T43.0","title":"Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants","description":"Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants is a non-billable ICD-10-CM category code (T43.0). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.0-poisoning-by-adverse-effect-of-and-underdosing-of-tricyclic-and"},{"code":"T43.01","title":"Poisoning by, adverse effect of and underdosing of tricyclic antidepressants","description":"Poisoning by, adverse effect of and underdosing of tricyclic antidepressants is a non-billable ICD-10-CM category code (T43.01). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.01-poisoning-by-adverse-effect-of-and-underdosing-of-tricyclic-antidepressants"},{"code":"T43.011","title":"Poisoning by tricyclic antidepressants, accidental (unintentional)","description":"Poisoning by tricyclic antidepressants, accidental (unintentional) is a non-billable ICD-10-CM category code (T43.011). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tricyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.011-poisoning-by-tricyclic-antidepressants-accidental-unintentional"},{"code":"T43.011A","title":"Poisoning by tricyclic antidepressants, accidental (unintentional), initial encounter","description":"Poisoning by tricyclic antidepressants, accidental (unintentional), initial encounter is a billable ICD-10-CM diagnosis code (T43.011A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tricyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.011a-poisoning-by-tricyclic-antidepressants-accidental-unintentional-initial-encounter"},{"code":"T43.011D","title":"Poisoning by tricyclic antidepressants, accidental (unintentional), subsequent encounter","description":"Poisoning by tricyclic antidepressants, accidental (unintentional), subsequent encounter is a billable ICD-10-CM diagnosis code (T43.011D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tricyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.011d-poisoning-by-tricyclic-antidepressants-accidental-unintentional-subsequent-encounter"},{"code":"T43.011S","title":"Poisoning by tricyclic antidepressants, accidental (unintentional), sequela","description":"Poisoning by tricyclic antidepressants, accidental (unintentional), sequela is a billable ICD-10-CM diagnosis code (T43.011S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tricyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.011s-poisoning-by-tricyclic-antidepressants-accidental-unintentional-sequela"},{"code":"T43.012","title":"Poisoning by tricyclic antidepressants, intentional self-harm","description":"Poisoning by tricyclic antidepressants, intentional self-harm is a non-billable ICD-10-CM category code (T43.012). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.012-poisoning-by-tricyclic-antidepressants-intentional-self-harm"},{"code":"T43.012A","title":"Poisoning by tricyclic antidepressants, intentional self-harm, initial encounter","description":"Poisoning by tricyclic antidepressants, intentional self-harm, initial encounter is a billable ICD-10-CM diagnosis code (T43.012A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.012a-poisoning-by-tricyclic-antidepressants-intentional-self-harm-initial-encounter"},{"code":"T43.012D","title":"Poisoning by tricyclic antidepressants, intentional self-harm, subsequent encounter","description":"Poisoning by tricyclic antidepressants, intentional self-harm, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.012D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.012d-poisoning-by-tricyclic-antidepressants-intentional-self-harm-subsequent-encounter"},{"code":"T43.012S","title":"Poisoning by tricyclic antidepressants, intentional self-harm, sequela","description":"Poisoning by tricyclic antidepressants, intentional self-harm, sequela is a billable ICD-10-CM diagnosis code (T43.012S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.012s-poisoning-by-tricyclic-antidepressants-intentional-self-harm-sequela"},{"code":"T43.013","title":"Poisoning by tricyclic antidepressants, assault","description":"Poisoning by tricyclic antidepressants, assault is a non-billable ICD-10-CM category code (T43.013). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.013-poisoning-by-tricyclic-antidepressants-assault"},{"code":"T43.013A","title":"Poisoning by tricyclic antidepressants, assault, initial encounter","description":"Poisoning by tricyclic antidepressants, assault, initial encounter is a billable ICD-10-CM diagnosis code (T43.013A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.013a-poisoning-by-tricyclic-antidepressants-assault-initial-encounter"},{"code":"T43.013D","title":"Poisoning by tricyclic antidepressants, assault, subsequent encounter","description":"Poisoning by tricyclic antidepressants, assault, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.013D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.013d-poisoning-by-tricyclic-antidepressants-assault-subsequent-encounter"},{"code":"T43.013S","title":"Poisoning by tricyclic antidepressants, assault, sequela","description":"Poisoning by tricyclic antidepressants, assault, sequela is a billable ICD-10-CM diagnosis code (T43.013S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.013s-poisoning-by-tricyclic-antidepressants-assault-sequela"},{"code":"T43.014","title":"Poisoning by tricyclic antidepressants, undetermined","description":"Poisoning by tricyclic antidepressants, undetermined is a non-billable ICD-10-CM category code (T43.014). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.014-poisoning-by-tricyclic-antidepressants-undetermined"},{"code":"T43.014A","title":"Poisoning by tricyclic antidepressants, undetermined, initial encounter","description":"Poisoning by tricyclic antidepressants, undetermined, initial encounter is a billable ICD-10-CM diagnosis code (T43.014A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.014a-poisoning-by-tricyclic-antidepressants-undetermined-initial-encounter"},{"code":"T43.014D","title":"Poisoning by tricyclic antidepressants, undetermined, subsequent encounter","description":"Poisoning by tricyclic antidepressants, undetermined, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.014D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.014d-poisoning-by-tricyclic-antidepressants-undetermined-subsequent-encounter"},{"code":"T43.014S","title":"Poisoning by tricyclic antidepressants, undetermined, sequela","description":"Poisoning by tricyclic antidepressants, undetermined, sequela is a billable ICD-10-CM diagnosis code (T43.014S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.014s-poisoning-by-tricyclic-antidepressants-undetermined-sequela"},{"code":"T43.015","title":"Adverse effect of tricyclic antidepressants","description":"Adverse effect of tricyclic antidepressants is a non-billable ICD-10-CM category code (T43.015). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.015-adverse-effect-of-tricyclic-antidepressants"},{"code":"T43.015A","title":"Adverse effect of tricyclic antidepressants, initial encounter","description":"Adverse effect of tricyclic antidepressants, initial encounter is a billable ICD-10-CM diagnosis code (T43.015A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.015a-adverse-effect-of-tricyclic-antidepressants-initial-encounter"},{"code":"T43.015D","title":"Adverse effect of tricyclic antidepressants, subsequent encounter","description":"Adverse effect of tricyclic antidepressants, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.015D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.015d-adverse-effect-of-tricyclic-antidepressants-subsequent-encounter"},{"code":"T43.015S","title":"Adverse effect of tricyclic antidepressants, sequela","description":"Adverse effect of tricyclic antidepressants, sequela is a billable ICD-10-CM diagnosis code (T43.015S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.015s-adverse-effect-of-tricyclic-antidepressants-sequela"},{"code":"T43.016","title":"Underdosing of tricyclic antidepressants","description":"Underdosing of tricyclic antidepressants is a non-billable ICD-10-CM category code (T43.016). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.016-underdosing-of-tricyclic-antidepressants"},{"code":"T43.016A","title":"Underdosing of tricyclic antidepressants, initial encounter","description":"Underdosing of tricyclic antidepressants, initial encounter is a billable ICD-10-CM diagnosis code (T43.016A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.016a-underdosing-of-tricyclic-antidepressants-initial-encounter"},{"code":"T43.016D","title":"Underdosing of tricyclic antidepressants, subsequent encounter","description":"Underdosing of tricyclic antidepressants, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.016D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.016d-underdosing-of-tricyclic-antidepressants-subsequent-encounter"},{"code":"T43.016S","title":"Underdosing of tricyclic antidepressants, sequela","description":"Underdosing of tricyclic antidepressants, sequela is a billable ICD-10-CM diagnosis code (T43.016S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.016s-underdosing-of-tricyclic-antidepressants-sequela"},{"code":"T43.02","title":"Poisoning by, adverse effect of and underdosing of tetracyclic antidepressants","description":"Poisoning by, adverse effect of and underdosing of tetracyclic antidepressants is a non-billable ICD-10-CM category code (T43.02). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.02-poisoning-by-adverse-effect-of-and-underdosing-of-tetracyclic-antidepressants"},{"code":"T43.021","title":"Poisoning by tetracyclic antidepressants, accidental (unintentional)","description":"Poisoning by tetracyclic antidepressants, accidental (unintentional) is a non-billable ICD-10-CM category code (T43.021). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tetracyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.021-poisoning-by-tetracyclic-antidepressants-accidental-unintentional"},{"code":"T43.021A","title":"Poisoning by tetracyclic antidepressants, accidental (unintentional), initial encounter","description":"Poisoning by tetracyclic antidepressants, accidental (unintentional), initial encounter is a billable ICD-10-CM diagnosis code (T43.021A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tetracyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.021a-poisoning-by-tetracyclic-antidepressants-accidental-unintentional-initial-encounter"},{"code":"T43.021D","title":"Poisoning by tetracyclic antidepressants, accidental (unintentional), subsequent encounter","description":"Poisoning by tetracyclic antidepressants, accidental (unintentional), subsequent encounter is a billable ICD-10-CM diagnosis code (T43.021D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tetracyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.021d-poisoning-by-tetracyclic-antidepressants-accidental-unintentional-subsequent-encounter"},{"code":"T43.021S","title":"Poisoning by tetracyclic antidepressants, accidental (unintentional), sequela","description":"Poisoning by tetracyclic antidepressants, accidental (unintentional), sequela is a billable ICD-10-CM diagnosis code (T43.021S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Inclusion terms: Poisoning by tetracyclic antidepressants NOS. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.021s-poisoning-by-tetracyclic-antidepressants-accidental-unintentional-sequela"},{"code":"T43.022","title":"Poisoning by tetracyclic antidepressants, intentional self-harm","description":"Poisoning by tetracyclic antidepressants, intentional self-harm is a non-billable ICD-10-CM category code (T43.022). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.022-poisoning-by-tetracyclic-antidepressants-intentional-self-harm"},{"code":"T43.022A","title":"Poisoning by tetracyclic antidepressants, intentional self-harm, initial encounter","description":"Poisoning by tetracyclic antidepressants, intentional self-harm, initial encounter is a billable ICD-10-CM diagnosis code (T43.022A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.022a-poisoning-by-tetracyclic-antidepressants-intentional-self-harm-initial-encounter"},{"code":"T43.022D","title":"Poisoning by tetracyclic antidepressants, intentional self-harm, subsequent encounter","description":"Poisoning by tetracyclic antidepressants, intentional self-harm, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.022D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.022d-poisoning-by-tetracyclic-antidepressants-intentional-self-harm-subsequent-encounter"},{"code":"T43.022S","title":"Poisoning by tetracyclic antidepressants, intentional self-harm, sequela","description":"Poisoning by tetracyclic antidepressants, intentional self-harm, sequela is a billable ICD-10-CM diagnosis code (T43.022S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.022s-poisoning-by-tetracyclic-antidepressants-intentional-self-harm-sequela"},{"code":"T43.023","title":"Poisoning by tetracyclic antidepressants, assault","description":"Poisoning by tetracyclic antidepressants, assault is a non-billable ICD-10-CM category code (T43.023). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.023-poisoning-by-tetracyclic-antidepressants-assault"},{"code":"T43.023A","title":"Poisoning by tetracyclic antidepressants, assault, initial encounter","description":"Poisoning by tetracyclic antidepressants, assault, initial encounter is a billable ICD-10-CM diagnosis code (T43.023A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.023a-poisoning-by-tetracyclic-antidepressants-assault-initial-encounter"},{"code":"T43.023D","title":"Poisoning by tetracyclic antidepressants, assault, subsequent encounter","description":"Poisoning by tetracyclic antidepressants, assault, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.023D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.023d-poisoning-by-tetracyclic-antidepressants-assault-subsequent-encounter"},{"code":"T43.023S","title":"Poisoning by tetracyclic antidepressants, assault, sequela","description":"Poisoning by tetracyclic antidepressants, assault, sequela is a billable ICD-10-CM diagnosis code (T43.023S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.023s-poisoning-by-tetracyclic-antidepressants-assault-sequela"},{"code":"T43.024","title":"Poisoning by tetracyclic antidepressants, undetermined","description":"Poisoning by tetracyclic antidepressants, undetermined is a non-billable ICD-10-CM category code (T43.024). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.024-poisoning-by-tetracyclic-antidepressants-undetermined"},{"code":"T43.024A","title":"Poisoning by tetracyclic antidepressants, undetermined, initial encounter","description":"Poisoning by tetracyclic antidepressants, undetermined, initial encounter is a billable ICD-10-CM diagnosis code (T43.024A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.024a-poisoning-by-tetracyclic-antidepressants-undetermined-initial-encounter"},{"code":"T43.024D","title":"Poisoning by tetracyclic antidepressants, undetermined, subsequent encounter","description":"Poisoning by tetracyclic antidepressants, undetermined, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.024D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.024d-poisoning-by-tetracyclic-antidepressants-undetermined-subsequent-encounter"},{"code":"T43.024S","title":"Poisoning by tetracyclic antidepressants, undetermined, sequela","description":"Poisoning by tetracyclic antidepressants, undetermined, sequela is a billable ICD-10-CM diagnosis code (T43.024S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.024s-poisoning-by-tetracyclic-antidepressants-undetermined-sequela"},{"code":"T43.025","title":"Adverse effect of tetracyclic antidepressants","description":"Adverse effect of tetracyclic antidepressants is a non-billable ICD-10-CM category code (T43.025). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.025-adverse-effect-of-tetracyclic-antidepressants"},{"code":"T43.025A","title":"Adverse effect of tetracyclic antidepressants, initial encounter","description":"Adverse effect of tetracyclic antidepressants, initial encounter is a billable ICD-10-CM diagnosis code (T43.025A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.025a-adverse-effect-of-tetracyclic-antidepressants-initial-encounter"},{"code":"T43.025D","title":"Adverse effect of tetracyclic antidepressants, subsequent encounter","description":"Adverse effect of tetracyclic antidepressants, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.025D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.025d-adverse-effect-of-tetracyclic-antidepressants-subsequent-encounter"},{"code":"T43.025S","title":"Adverse effect of tetracyclic antidepressants, sequela","description":"Adverse effect of tetracyclic antidepressants, sequela is a billable ICD-10-CM diagnosis code (T43.025S). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.025s-adverse-effect-of-tetracyclic-antidepressants-sequela"},{"code":"T43.026","title":"Underdosing of tetracyclic antidepressants","description":"Underdosing of tetracyclic antidepressants is a non-billable ICD-10-CM category code (T43.026). A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":false,"slug":"t43.026-underdosing-of-tetracyclic-antidepressants"},{"code":"T43.026A","title":"Underdosing of tetracyclic antidepressants, initial encounter","description":"Underdosing of tetracyclic antidepressants, initial encounter is a billable ICD-10-CM diagnosis code (T43.026A). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.026a-underdosing-of-tetracyclic-antidepressants-initial-encounter"},{"code":"T43.026D","title":"Underdosing of tetracyclic antidepressants, subsequent encounter","description":"Underdosing of tetracyclic antidepressants, subsequent encounter is a billable ICD-10-CM diagnosis code (T43.026D). Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy (O29.3-). Excludes2 (not included here): appetite depressants (T50.5-); barbiturates (T42.3-); benzodiazepines (T42.4-); drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-); methaqualone (T42.6-); psychodysleptics [hallucinogens] (T40.7-T40.9-); abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96); pathological drug intoxication (inebriation) (F10-F19). Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76); contact dermatitis (L23-L25); dermatitis due to substances taken internally (L27.-); nephropathy (N14.0-N14.2). Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T43.","isBillable":true,"slug":"t43.026d-underdosing-of-tetracyclic-antidepressants-subsequent-encounter"}],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":"","hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}