{"code":"M90.572","type":"code","title":"Osteonecrosis in diseases classified elsewhere, left ankle and foot","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":["underlying disease, such as:","caisson disease (T70.3)","hemoglobinopathy (D50-D64)"],"excludes1":["osteochondritis, osteomyelitis, and osteopathy (in):","cryptococcosis (B45.3)","diabetes mellitus (E08-E13 with .69-)","gonococcal (A54.43)","neurogenic syphilis (A52.11)","renal osteodystrophy (N25.0)","salmonellosis (A02.24)","secondary syphilis (A51.46)","syphilis (late) (A52.77)","postprocedural osteopathies (M96.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Osteonecrosis in diseases classified elsewhere, left ankle and foot is a billable ICD-10-CM diagnosis code (M90.572). Excludes1 (not coded here): osteochondritis, osteomyelitis, and osteopathy (in):; cryptococcosis (B45.3); diabetes mellitus (E08-E13 with .69-); gonococcal (A54.43); neurogenic syphilis (A52.11); renal osteodystrophy (N25.0); salmonellosis (A02.24); secondary syphilis (A51.46); syphilis (late) (A52.77); postprocedural osteopathies (M96.-). Code first: underlying disease, such as:; caisson disease (T70.3); hemoglobinopathy (D50-D64).","officialDefinition":"Osteonecrosis in diseases classified elsewhere, left ankle and foot is a billable ICD-10-CM diagnosis code (M90.572). Excludes1 (not coded here): osteochondritis, osteomyelitis, and osteopathy (in):; cryptococcosis (B45.3); diabetes mellitus (E08-E13 with .69-); gonococcal (A54.43); neurogenic syphilis (A52.11); renal osteodystrophy (N25.0); salmonellosis (A02.24); secondary syphilis (A51.46); syphilis (late) (A52.77); postprocedural osteopathies (M96.-). Code first: underlying disease, such as:; caisson disease (T70.3); hemoglobinopathy (D50-D64).","seventhCharacterInstructions":[],"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":{"osteochondritis, osteomyelitis, and osteopathy (in):":"M90","cryptococcosis (B45.3)":"M90","diabetes mellitus (E08-E13 with .69-)":"M90","gonococcal (A54.43)":"M90","neurogenic syphilis (A52.11)":"M90","renal osteodystrophy (N25.0)":"M90","salmonellosis (A02.24)":"M90","secondary syphilis (A51.46)":"M90","syphilis (late) (A52.77)":"M90","postprocedural osteopathies (M96.-)":"M90","underlying disease, such as:":"M90.5","caisson disease (T70.3)":"M90.5","hemoglobinopathy (D50-D64)":"M90.5"},"hcc":{"mapped":true,"model":"CMS-HCC V28","paymentYear":"2026","categories":[{"hcc":"92","label":"Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis","family":"","suppresses":[]}],"otherModels":[{"model":"CMS-HCC V22","hcc":"39"},{"model":"RxHCC V08","hcc":"80"}]}}