{"code":"M08.269","type":"code","title":"Juvenile rheumatoid arthritis with systemic onset, unspecified knee","codeAlso":["any associated underlying condition, such as:","regional enteritis [Crohn's disease] (K50.-)","ulcerative colitis (K51.-)"],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["adult-onset Still's disease (M06.1-)","arthropathy in Whipple's disease (M14.8)","Felty's syndrome (M05.0)","juvenile dermatomyositis (M33.0-)","psoriatic juvenile arthropathy (L40.54)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["M08","M08.0","M08.00","M08.01","M08.011","M08.012","M08.019","M08.02","M08.021","M08.022","M08.029","M08.03","M08.031","M08.032","M08.039","M08.04","M08.041","M08.042","M08.049","M08.05","M08.051","M08.052","M08.059","M08.06","M08.061","M08.062","M08.069","M08.07","M08.071","M08.072","M08.079","M08.08","M08.09","M08.0A","M08.1","M08.2","M08.20","M08.21","M08.211","M08.212","M08.219","M08.22","M08.221","M08.222","M08.229","M08.23","M08.231","M08.232","M08.239","M08.24","M08.241","M08.242","M08.249","M08.25","M08.251","M08.252","M08.259","M08.26","M08.261","M08.262","M08.27","M08.271","M08.272","M08.279","M08.28","M08.29","M08.2A","M08.3","M08.4","M08.40","M08.41","M08.411","M08.412","M08.419","M08.42","M08.421","M08.422","M08.429","M08.43","M08.431","M08.432","M08.439","M08.44","M08.441","M08.442","M08.449","M08.45","M08.451","M08.452","M08.459","M08.46","M08.461","M08.462","M08.469","M08.47","M08.471","M08.472","M08.479","M08.48","M08.4A"],"inclusionTerms":[],"sibling_titles":{"code":"M08.4A","title":"Pauciarticular juvenile rheumatoid arthritis, other specified site","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Juvenile rheumatoid arthritis with systemic onset, unspecified knee is a billable ICD-10-CM diagnosis code (M08.269). Excludes1 (not coded here): adult-onset Still's disease (M06.1-); arthropathy in Whipple's disease (M14.8); Felty's syndrome (M05.0); juvenile dermatomyositis (M33.0-); psoriatic juvenile arthropathy (L40.54). Code also: any associated underlying condition, such as:; regional enteritis [Crohn's disease] (K50.-); ulcerative colitis (K51.-).","officialDefinition":"Juvenile rheumatoid arthritis with systemic onset, unspecified knee is a billable ICD-10-CM diagnosis code (M08.269). Excludes1 (not coded here): adult-onset Still's disease (M06.1-); arthropathy in Whipple's disease (M14.8); Felty's syndrome (M05.0); juvenile dermatomyositis (M33.0-); psoriatic juvenile arthropathy (L40.54). Code also: any associated underlying condition, such as:; regional enteritis [Crohn's disease] (K50.-); ulcerative colitis (K51.-).","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":{"arthropathy in Whipple's disease (M14.8)":"M08","Felty's syndrome (M05.0)":"M08","juvenile dermatomyositis (M33.0-)":"M08","psoriatic juvenile arthropathy (L40.54)":"M08","adult-onset Still's disease (M06.1-)":"M08.2","Still's disease NOS":"M08.2"},"hcc":{"mapped":true,"model":"CMS-HCC V28","paymentYear":"2026","categories":[{"hcc":"93","label":"Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders","family":"MSK","suppresses":[{"hcc":"94","label":"Systemic Lupus Erythematosus and Other Specified Systemic Connective Tissue Disorders"}]}],"otherModels":[{"model":"CMS-HCC V22","hcc":"40"},{"model":"RxHCC V08","hcc":"83"}]}}