{"code":"D02.1","type":"code","title":"Carcinoma in situ of trachea","codeAlso":[],"includes":["Bowen's disease","erythroplasia","grade III intraepithelial neoplasia","Queyrat's erythroplasia"],"modern_v":"official26","codeFirst":[],"excludes1":["melanoma in situ (D03.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"inclusionTerms":[],"useAdditionalCode":["code to identify:","exposure to environmental tobacco smoke (Z77.22)","exposure to tobacco smoke in the perinatal period (P96.81)","history of tobacco dependence (Z87.891)","occupational exposure to environmental tobacco smoke (Z57.31)","tobacco dependence (F17.-)","tobacco use (Z72.0)"],"clinicalDefinition":"Carcinoma in situ of trachea is a billable ICD-10-CM diagnosis code (D02.1). Includes: Bowen's disease; erythroplasia; grade III intraepithelial neoplasia; Queyrat's erythroplasia. Excludes1 (not coded here): melanoma in situ (D03.-). Use additional code: code to identify:; exposure to environmental tobacco smoke (Z77.22); exposure to tobacco smoke in the perinatal period (P96.81); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0).","officialDefinition":"Carcinoma in situ of trachea is a billable ICD-10-CM diagnosis code (D02.1). Includes: Bowen's disease; erythroplasia; grade III intraepithelial neoplasia; Queyrat's erythroplasia. Excludes1 (not coded here): melanoma in situ (D03.-). Use additional code: code to identify:; exposure to environmental tobacco smoke (Z77.22); exposure to tobacco smoke in the perinatal period (P96.81); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0).","seventhCharacterInstructions":[],"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":""}