{"code":"T52.1X","type":"code","title":"Toxic effects of benzene","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["homologues of benzene (T52.2)","nitroderivatives and aminoderivatives of benzene and its homologues (T65.3)","halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)","contact with and (suspected) exposure to toxic substances (Z77.-)"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["T52.1X1","T52.1X1A","T52.1X1D","T52.1X1S","T52.1X2","T52.1X2A","T52.1X2D","T52.1X2S","T52.1X3","T52.1X3A","T52.1X3D","T52.1X3S","T52.1X4","T52.1X4A","T52.1X4D","T52.1X4S"],"inclusionTerms":[],"sibling_titles":{"code":"T52.1X4S","title":"Toxic effect of benzene, undetermined, sequela","isBillable":true},"useAdditionalCode":["code(s):","for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)","personal history of foreign body fully removed (Z87.821)","to identify any retained foreign body, if applicable (Z18.-)"],"clinicalDefinition":"Toxic effects of benzene is a non-billable ICD-10-CM category code (T52.1X). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): homologues of benzene (T52.2); nitroderivatives and aminoderivatives of benzene and its homologues (T65.3); halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-); contact with and (suspected) exposure to toxic substances (Z77.-).","officialDefinition":"Toxic effects of benzene is a non-billable ICD-10-CM category code (T52.1X). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): homologues of benzene (T52.2); nitroderivatives and aminoderivatives of benzene and its homologues (T65.3); halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-); contact with and (suspected) exposure to toxic substances (Z77.-). Use additional code: code(s):; for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70); personal history of foreign body fully removed (Z87.821); to identify any retained foreign body, if applicable (Z18.-). 7th character: The appropriate 7th character is to be added to each code from category T52.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T52"],"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":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":"","noteProvenance":{"halogen derivatives of aliphatic and aromatic hydrocarbons (T53.-)":"T52","contact with and (suspected) exposure to toxic substances (Z77.-)":"T52","code(s):":"T52","for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)":"T52","personal history of foreign body fully removed (Z87.821)":"T52","to identify any retained foreign body, if applicable (Z18.-)":"T52","homologues of benzene (T52.2)":"T52.1","nitroderivatives and aminoderivatives of benzene and its homologues (T65.3)":"T52.1"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}