{"code":"M05.26","type":"code","title":"Rheumatoid vasculitis with rheumatoid arthritis of knee","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["rheumatic fever (I00)","juvenile rheumatoid arthritis (M08.-)","rheumatoid arthritis of spine (M45.-)"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["M05.261","M05.262","M05.269"],"inclusionTerms":[],"sibling_titles":{"code":"M05.269","title":"Rheumatoid vasculitis with rheumatoid arthritis of unspecified knee","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Rheumatoid vasculitis with rheumatoid arthritis of knee is a non-billable ICD-10-CM category code (M05.26). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): rheumatic fever (I00); juvenile rheumatoid arthritis (M08.-); rheumatoid arthritis of spine (M45.-).","officialDefinition":"Rheumatoid vasculitis with rheumatoid arthritis of knee is a non-billable ICD-10-CM category code (M05.26). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): rheumatic fever (I00); juvenile rheumatoid arthritis (M08.-); rheumatoid arthritis of spine (M45.-).","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":""}