{"code":"T27.5XXD","type":"code","title":"Corrosion involving larynx and trachea with lung, subsequent encounter","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":["(T51-T65) to identify chemical and intent"],"excludes1":[],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":["external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98)","external cause code to identify place (Y92)"],"clinicalDefinition":"Corrosion involving larynx and trachea with lung, subsequent encounter is a billable ICD-10-CM diagnosis code (T27.5D). Code first: (T51-T65) to identify chemical and intent. Use additional code: external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98); external cause code to identify place (Y92). 7th character: The appropriate 7th character is to be added to each code from category T27.","officialDefinition":"Corrosion involving larynx and trachea with lung, subsequent encounter is a billable ICD-10-CM diagnosis code (T27.5D). Code first: (T51-T65) to identify chemical and intent. Use additional code: external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98); external cause code to identify place (Y92). 7th character: The appropriate 7th character is to be added to each code from category T27.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T27"],"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":{"external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98)":"T27","external cause code to identify place (Y92)":"T27","(T51-T65) to identify chemical and intent":"T27.5"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}