{"code":"G71.13","type":"code","title":"Myotonic chondrodystrophy","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["arthrogryposis multiplex congenita (Q74.3)","metabolic disorders (E70-E88)","myositis (M60.-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":["Chondrodystrophic myotonia","Congenital myotonic chondrodystrophy","Schwartz-Jampel disease"],"useAdditionalCode":[],"clinicalDefinition":"Myotonic chondrodystrophy is a billable ICD-10-CM diagnosis code (G71.13). Inclusion terms: Chondrodystrophic myotonia; Congenital myotonic chondrodystrophy; Schwartz-Jampel disease. Excludes2 (not included here): arthrogryposis multiplex congenita (Q74.3); metabolic disorders (E70-E88); myositis (M60.-).","officialDefinition":"Myotonic chondrodystrophy is a billable ICD-10-CM diagnosis code (G71.13). Inclusion terms: Chondrodystrophic myotonia; Congenital myotonic chondrodystrophy; Schwartz-Jampel disease. Excludes2 (not included here): arthrogryposis multiplex congenita (Q74.3); metabolic disorders (E70-E88); myositis (M60.-).","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":""}