{"code":"T24.621S","type":"code","title":"Corrosion of second degree of right knee, sequela","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":["(T51-T65) to identify chemical and intent"],"excludes1":[],"excludes2":["burn and corrosion of ankle and foot (T25.-)","burn and corrosion of hip region (T21.-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["T24","T24.0","T24.001","T24.001A","T24.001D","T24.001S","T24.002","T24.002A","T24.002D","T24.002S","T24.009","T24.009A","T24.009D","T24.009S","T24.011","T24.011A","T24.011D","T24.011S","T24.012","T24.012A","T24.012D","T24.012S","T24.019","T24.019A","T24.019D","T24.019S","T24.021","T24.021A","T24.021D","T24.021S","T24.022","T24.022A","T24.022D","T24.022S","T24.029","T24.029A","T24.029D","T24.029S","T24.031","T24.031A","T24.031D","T24.031S","T24.032","T24.032A","T24.032D","T24.032S","T24.039","T24.039A","T24.039D","T24.039S","T24.091","T24.091A","T24.091D","T24.091S","T24.092","T24.092A","T24.092D","T24.092S","T24.099","T24.099A","T24.099D","T24.099S","T24.1","T24.101","T24.101A","T24.101D","T24.101S","T24.102","T24.102A","T24.102D","T24.102S","T24.109","T24.109A","T24.109D","T24.109S","T24.111","T24.111A","T24.111D","T24.111S","T24.112","T24.112A","T24.112D","T24.112S","T24.119","T24.119A","T24.119D","T24.119S","T24.121","T24.121A","T24.121D","T24.121S","T24.122"],"inclusionTerms":[],"sibling_titles":{"code":"T24.122","title":"Burn of first degree of left knee","isBillable":false},"useAdditionalCode":["external cause code to identify place (Y92)","code from category T31 or T32 to identify extent of body surface involved"],"clinicalDefinition":"Corrosion of second degree of right knee, sequela is a billable ICD-10-CM diagnosis code (T24.621S). 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 and corrosion of ankle and foot (T25.-); burn and corrosion of hip region (T21.-).","officialDefinition":"Corrosion of second degree of right knee, sequela is a billable ICD-10-CM diagnosis code (T24.621S). 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 and corrosion of ankle and foot (T25.-); burn and corrosion of hip region (T21.-). Code first: (T51-T65) to identify chemical and intent. Use additional code: external cause code to identify place (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 T24.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from category T24"],"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 ankle and foot (T25.-)":"T24","burn and corrosion of hip region (T21.-)":"T24","code from category T31 or T32 to identify extent of body surface involved":"T24","burns and corrosions of first degree [erythema]":"T24","burns and corrosions of second degree [blisters][epidermal loss]":"T24","burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]":"T24","(T51-T65) to identify chemical and intent":"T24.6","external cause code to identify place (Y92)":"T24.6"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}