{"code":"T53.9","type":"code","title":"Toxic effects of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["contact with and (suspected) exposure to toxic substances (Z77.-)"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["T53.91A","T53.91D","T53.91S","T53.92A","T53.92D","T53.92S","T53.93A","T53.93D","T53.93S","T53.94A","T53.94D","T53.94S"],"inclusionTerms":[],"sibling_titles":{"code":"T53.94S","title":"Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, 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 unspecified halogen derivatives of aliphatic and aromatic hydrocarbons is a non-billable ICD-10-CM category code (T53.9). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): contact with and (suspected) exposure to toxic substances (Z77.-).","officialDefinition":"Toxic effects of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons is a non-billable ICD-10-CM category code (T53.9). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): 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 T53.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T53"],"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":""}