{"code":"T20.312A","type":"code","title":"Burn of third degree of left ear [any part, except ear drum], initial encounter","codeAlso":[],"includes":["burns and corrosions of first degree [erythema]","burns and corrosions of second degree [blisters][epidermal loss]","burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]"],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["burn of ear drum (T28.41-)","burn and corrosion of ear drum (T28.41, T28.91)","burn and corrosion of eye and adnexa (T26.-)","burn and corrosion of mouth and pharynx (T28.0)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["T20","T20.0","T20.00XA","T20.00XD","T20.00XS","T20.011","T20.011A","T20.011D","T20.011S","T20.012","T20.012A","T20.012D","T20.012S","T20.019","T20.019A","T20.019D","T20.019S","T20.02XA","T20.02XD","T20.02XS","T20.03XA","T20.03XD","T20.03XS","T20.04XA","T20.04XD","T20.04XS","T20.05XA","T20.05XD","T20.05XS","T20.06XA","T20.06XD","T20.06XS","T20.07XA","T20.07XD","T20.07XS","T20.09XA","T20.09XD","T20.09XS","T20.1","T20.10XA","T20.10XD","T20.10XS","T20.111","T20.111A","T20.111D","T20.111S","T20.112","T20.112A","T20.112D","T20.112S","T20.119","T20.119A","T20.119D","T20.119S","T20.12XA","T20.12XD","T20.12XS","T20.13XA","T20.13XD","T20.13XS","T20.14XA","T20.14XD","T20.14XS","T20.15XA","T20.15XD","T20.15XS","T20.16XA","T20.16XD","T20.16XS","T20.17XA","T20.17XD","T20.17XS","T20.19XA","T20.19XD","T20.19XS","T20.2","T20.20XA","T20.20XD","T20.20XS","T20.211"],"inclusionTerms":[],"sibling_titles":{"code":"T20.211","title":"Burn of second degree of right ear [any part, except ear drum]","isBillable":false},"useAdditionalCode":["external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)","code from category T31 or T32 to identify extent of body surface involved"],"clinicalDefinition":"Burn of third degree of left ear [any part, except ear drum], initial encounter is a billable ICD-10-CM diagnosis code (T20.312A). Includes: burns and corrosions of first degree [erythema]; burns and corrosions of second degree [blisters][epidermal loss]; burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]. Excludes2 (not included here): burn of ear drum (T28.41-); burn and corrosion of ear drum (T28.41, T28.","officialDefinition":"Burn of third degree of left ear [any part, except ear drum], initial encounter is a billable ICD-10-CM diagnosis code (T20.312A). Includes: burns and corrosions of first degree [erythema]; burns and corrosions of second degree [blisters][epidermal loss]; burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]. Excludes2 (not included here): burn of ear drum (T28.41-); burn and corrosion of ear drum (T28.41, T28.91); burn and corrosion of eye and adnexa (T26.-); burn and corrosion of mouth and pharynx (T28.0). Use additional code: external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92); code from category T31 or T32 to identify extent of body surface involved. 7th character: The appropriate 7th character is to be added to each code from category T20.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T20"],"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":{"burn and corrosion of ear drum (T28.41, T28.91)":"T20","burn and corrosion of eye and adnexa (T26.-)":"T20","burn and corrosion of mouth and pharynx (T28.0)":"T20","code from category T31 or T32 to identify extent of body surface involved":"T20","burns and corrosions of first degree [erythema]":"T20","burns and corrosions of second degree [blisters][epidermal loss]":"T20","burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]":"T20","external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)":"T20.3","burn of ear drum (T28.41-)":"T20.31"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}