{"code":"M17.9","type":"code","title":"Osteoarthritis of knee, unspecified","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["osteoarthritis of spine (M47.-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["M17","M17.0","M17.1","M17.10","M17.11","M17.12","M17.2","M17.3","M17.30","M17.31","M17.32","M17.4","M17.5"],"inclusionTerms":[],"sibling_titles":{"code":"M17.5","title":"Other unilateral secondary osteoarthritis of knee","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Osteoarthritis of knee, unspecified is a billable ICD-10-CM diagnosis code (M17.9). Excludes2 (not included here): osteoarthritis of spine (M47.-).","officialDefinition":"Osteoarthritis of knee, unspecified is a billable ICD-10-CM diagnosis code (M17.9). Excludes2 (not included here): osteoarthritis of spine (M47.-).","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":""}