{"code":"T21.3","type":"code","title":"Burn of third degree of trunk","codeAlso":[],"includes":["burns and corrosion of hip region","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":["burns and corrosion of axilla (T22.- with fifth character 4)","burns and corrosion of scapular region (T22.- with fifth character 6)","burns and corrosion of shoulder (T22.- with fifth character 5)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true},"inclusionTerms":[],"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 trunk is a non-billable ICD-10-CM category code (T21.3). A more specific billable subcode must be selected for claims submission. Includes: burns and corrosion of hip region; 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): burns and corrosion of axilla (T22.","officialDefinition":"Burn of third degree of trunk is a non-billable ICD-10-CM category code (T21.3). A more specific billable subcode must be selected for claims submission. Includes: burns and corrosion of hip region; 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): burns and corrosion of axilla (T22.- with fifth character 4); burns and corrosion of scapular region (T22.- with fifth character 6); burns and corrosion of shoulder (T22.- with fifth character 5). 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 T21.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T21"],"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":""}