T45.0X1D is the authoritative medical code for Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), subsequent encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for poisoning by antiallergic and antiemetic drugs, accidental (unintentional), subsequent encounter (ICD-10-CM T45.0X1D), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), subsequent encounter is a billable ICD-10-CM diagnosis code T45.0X1D. 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 antiallergic and antiemetic drugs NOS. Excludes1 (not coded here): poisoning by, adverse effect of and underdosing of phenothiazine-based neuroleptics T43.3; toxic reaction to local anesthesia in pregnancy O29.3-. Excludes2 (not included here): 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 T45.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T45.0X1D in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- 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
Alternative terms the tabular list files under this code.
- Poisoning by antiallergic and antiemetic drugs NOS
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- poisoning by, adverse effect of and underdosing of phenothiazine-based neuroleptics T43.3
- toxic reaction to local anesthesia in pregnancy O29.3-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- 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
Underlying conditions that must be sequenced before this code.
- , 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
Supplementary codes the tabular list directs you to add.
- 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-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Does T45.0X1D require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T45.
What can't be coded together with T45.0X1D?
Per Excludes1 instructions, T45.0X1D must not be reported with: poisoning by, adverse effect of and underdosing of phenothiazine-based neuroleptics (T43.3); toxic reaction to local anesthesia in pregnancy (O29.3-).
Can T45.0X1D be reported alongside related conditions?
Per Excludes2 instructions, T45.0X1D and the following may both be reported when both are present: 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).
Does T45.0X1D need to be sequenced after another code?
Yes. 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).
Is an additional code needed with T45.0X1D?
Use additional code(s) to specify: 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-).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as T45.0X1D, with their registry titles.
- T45 — Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
- T45.0 — Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs
- T45.0X — Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs
- T45.0X1 — Poisoning by antiallergic and antiemetic drugs, accidental (unintentional)
- T45.0X1A — Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), initial encounter
- T45.0X1S — Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), sequela
- T45.0X2 — Poisoning by antiallergic and antiemetic drugs, intentional self-harm
- T45.0X2A — Poisoning by antiallergic and antiemetic drugs, intentional self-harm, initial encounter
- T45.0X2D — Poisoning by antiallergic and antiemetic drugs, intentional self-harm, subsequent encounter
- T45.0X2S — Poisoning by antiallergic and antiemetic drugs, intentional self-harm, sequela
- T45.0X3 — Poisoning by antiallergic and antiemetic drugs, assault
- T45.0X3A — Poisoning by antiallergic and antiemetic drugs, assault, initial encounter
- T45.0X3D — Poisoning by antiallergic and antiemetic drugs, assault, subsequent encounter
- T45.0X3S — Poisoning by antiallergic and antiemetic drugs, assault, sequela
- T45.0X4 — Poisoning by antiallergic and antiemetic drugs, undetermined
- T45.0X4A — Poisoning by antiallergic and antiemetic drugs, undetermined, initial encounter
- T45.0X4D — Poisoning by antiallergic and antiemetic drugs, undetermined, subsequent encounter
- T45.0X4S — Poisoning by antiallergic and antiemetic drugs, undetermined, sequela
- T45.0X5 — Adverse effect of antiallergic and antiemetic drugs
- T45.0X5A — Adverse effect of antiallergic and antiemetic drugs, initial encounter
- T45.0X5D — Adverse effect of antiallergic and antiemetic drugs, subsequent encounter
- T45.0X5S — Adverse effect of antiallergic and antiemetic drugs, sequela
- T45.0X6 — Underdosing of antiallergic and antiemetic drugs
- T45.0X6A — Underdosing of antiallergic and antiemetic drugs, initial encounter
- T45.0X6D — Underdosing of antiallergic and antiemetic drugs, subsequent encounter
- T45.0X6S — Underdosing of antiallergic and antiemetic drugs, sequela
- T45.1 — Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
- T45.1X — Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
- T45.1X1 — Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional)
- T45.1X1A — Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), initial encounter
- T45.1X1D — Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), subsequent encounter
- T45.1X1S — Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), sequela
- T45.1X2 — Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm
- T45.1X2A — Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, initial encounter
- T45.1X2D — Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, subsequent encounter
- T45.1X2S — Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, sequela
- T45.1X3 — Poisoning by antineoplastic and immunosuppressive drugs, assault
- T45.1X3A — Poisoning by antineoplastic and immunosuppressive drugs, assault, initial encounter
- T45.1X3D — Poisoning by antineoplastic and immunosuppressive drugs, assault, subsequent encounter
- T45.1X3S — Poisoning by antineoplastic and immunosuppressive drugs, assault, sequela
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code T40.0X1D
Poisoning by opium, accidental (unintentional), subsequent encounter
ICD Code T41.0X1D
Poisoning by inhaled anesthetics, accidental (unintentional), subsequent encounter
ICD Code T42.0X1D
Poisoning by hydantoin derivatives, accidental (unintentional), subsequent encounter
ICD Code T44.0X1D
Poisoning by anticholinesterase agents, accidental (unintentional), subsequent encounter
ICD Code T46.0X1D
Poisoning by cardiac-stimulant glycosides and drugs of similar action, accidental (unintentional), subsequent encounter
ICD Code T47.0X1D
Poisoning by histamine H2-receptor blockers, accidental (unintentional), subsequent encounter
ICD Code T48.0X1D
Poisoning by oxytocic drugs, accidental (unintentional), subsequent encounter
ICD Code T49.0X1D
Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), subsequent encounter
ICD Code T50.0X1D
Poisoning by mineralocorticoids and their antagonists, accidental (unintentional), subsequent encounter