{"code":"M90.5","type":"code","title":"Osteonecrosis in diseases classified elsewhere","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":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["M90.50","M90.51","M90.511","M90.512","M90.519","M90.52","M90.521","M90.522","M90.529","M90.53","M90.531","M90.532","M90.539","M90.54","M90.541","M90.542","M90.549","M90.55","M90.551","M90.552","M90.559","M90.56","M90.561","M90.562","M90.569","M90.57","M90.571","M90.572","M90.579","M90.58","M90.59"],"inclusionTerms":[],"sibling_titles":{"code":"M90.59","title":"Osteonecrosis in diseases classified elsewhere, multiple sites","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Osteonecrosis in diseases classified elsewhere is a non-billable ICD-10-CM category code (M90.5). A more specific billable subcode must be selected for claims submission. 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.","officialDefinition":"Osteonecrosis in diseases classified elsewhere is a non-billable ICD-10-CM category code (M90.5). A more specific billable subcode must be selected for claims submission. 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":"","hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}