{"code":"I05.9","type":"code","title":"Rheumatic mitral valve disease, unspecified","codeAlso":[],"includes":["conditions classifiable to both I05.0 and I05.2-I05.9, whether specified as rheumatic or not"],"modern_v":"official26","codeFirst":[],"excludes1":["mitral valve disease specified as nonrheumatic (I34.-)","mitral valve disease with aortic and/or tricuspid valve involvement (I08.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["I05","I05.0","I05.1","I05.2","I05.8"],"inclusionTerms":["Rheumatic mitral (valve) disorder (chronic) NOS"],"sibling_titles":{"code":"I05.8","title":"Other rheumatic mitral valve diseases","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Rheumatic mitral valve disease, unspecified is a billable ICD-10-CM diagnosis code (I05.9). Includes: conditions classifiable to both I05.0 and I05.2-I05.9, whether specified as rheumatic or not. Inclusion terms: Rheumatic mitral (valve) disorder (chronic) NOS. Excludes1 (not coded here): mitral valve disease specified as nonrheumatic (I34.-); mitral valve disease with aortic and/or tricuspid valve involvement (I08.-).","officialDefinition":"Rheumatic mitral valve disease, unspecified is a billable ICD-10-CM diagnosis code (I05.9). Includes: conditions classifiable to both I05.0 and I05.2-I05.9, whether specified as rheumatic or not. Inclusion terms: Rheumatic mitral (valve) disorder (chronic) NOS. Excludes1 (not coded here): mitral valve disease specified as nonrheumatic (I34.-); mitral valve disease with aortic and/or tricuspid valve involvement (I08.-).","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":""}