{"code":"M87.139","type":"code","title":"Osteonecrosis due to drugs of unspecified carpus","codeAlso":[],"includes":["avascular necrosis of bone"],"modern_v":"official26","codeFirst":[],"excludes1":["juvenile osteonecrosis (M91-M92)","osteochondropathies (M90-M93)","postprocedural osteopathies (M96.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"inclusionTerms":[],"useAdditionalCode":["code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)","code to identify major osseous defect, if applicable (M89.7-)"],"clinicalDefinition":"Osteonecrosis due to drugs of unspecified carpus is a billable ICD-10-CM diagnosis code (M87.139). Includes: avascular necrosis of bone. Excludes1 (not coded here): juvenile osteonecrosis (M91-M92); osteochondropathies (M90-M93); postprocedural osteopathies (M96.-). Use additional code: code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5); code to identify major osseous defect, if applicable (M89.7-).","officialDefinition":"Osteonecrosis due to drugs of unspecified carpus is a billable ICD-10-CM diagnosis code (M87.139). Includes: avascular necrosis of bone. Excludes1 (not coded here): juvenile osteonecrosis (M91-M92); osteochondropathies (M90-M93); postprocedural osteopathies (M96.-). Use additional code: code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5); code to identify major osseous defect, if applicable (M89.7-).","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":""}