{"code":"T23.042A","type":"code","title":"Burn of unspecified degree of multiple left fingers (nail), including thumb, 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":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["T23","T23.0","T23.001","T23.001A","T23.001D","T23.001S","T23.002","T23.002A","T23.002D","T23.002S","T23.009","T23.009A","T23.009D","T23.009S","T23.011","T23.011A","T23.011D","T23.011S","T23.012","T23.012A","T23.012D","T23.012S","T23.019","T23.019A","T23.019D","T23.019S","T23.021","T23.021A","T23.021D","T23.021S","T23.022","T23.022A","T23.022D","T23.022S","T23.029","T23.029A","T23.029D","T23.029S","T23.031","T23.031A","T23.031D","T23.031S","T23.032","T23.032A","T23.032D","T23.032S","T23.039","T23.039A","T23.039D","T23.039S","T23.041","T23.041A","T23.041D","T23.041S","T23.042","T23.042D","T23.042S","T23.049","T23.049A","T23.049D","T23.049S","T23.051","T23.051A","T23.051D","T23.051S","T23.052","T23.052A","T23.052D","T23.052S","T23.059","T23.059A","T23.059D","T23.059S","T23.061","T23.061A","T23.061D","T23.061S","T23.062","T23.062A","T23.062D","T23.062S","T23.069","T23.069A","T23.069D","T23.069S","T23.071","T23.071A","T23.071D","T23.071S","T23.072","T23.072A","T23.072D"],"inclusionTerms":[],"sibling_titles":{"code":"T23.072D","title":"Burn of unspecified degree of left wrist, subsequent encounter","isBillable":true},"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 unspecified degree of multiple left fingers (nail), including thumb, initial encounter is a billable ICD-10-CM diagnosis code (T23.042A). 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].","officialDefinition":"Burn of unspecified degree of multiple left fingers (nail), including thumb, initial encounter is a billable ICD-10-CM diagnosis code (T23.042A). 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]. 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 T23.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T23"],"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":{"code from category T31 or T32 to identify extent of body surface involved":"T23","burns and corrosions of first degree [erythema]":"T23","burns and corrosions of second degree [blisters][epidermal loss]":"T23","burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]":"T23","external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)":"T23.0"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}