{"code":"Q74.1","type":"code","title":"Congenital malformation of knee","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["congenital dislocation of knee (Q68.2)","congenital genu recurvatum (Q68.2)","nail patella syndrome (Q87.2)","polydactyly (Q69.-)","reduction defect of limb (Q71-Q73)","syndactyly (Q70.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":["Congenital absence of patella","Congenital dislocation of patella","Congenital genu valgum","Congenital genu varum","Rudimentary patella"],"useAdditionalCode":[],"clinicalDefinition":"Congenital malformation of knee is a billable ICD-10-CM diagnosis code (Q74.1). Inclusion terms: Congenital absence of patella; Congenital dislocation of patella; Congenital genu valgum; Congenital genu varum; Rudimentary patella. Excludes1 (not coded here): congenital dislocation of knee (Q68.2); congenital genu recurvatum (Q68.2); nail patella syndrome (Q87.2); polydactyly (Q69.-); reduction defect of limb (Q71-Q73); syndactyly (Q70.-).","officialDefinition":"Congenital malformation of knee is a billable ICD-10-CM diagnosis code (Q74.1). Inclusion terms: Congenital absence of patella; Congenital dislocation of patella; Congenital genu valgum; Congenital genu varum; Rudimentary patella. Excludes1 (not coded here): congenital dislocation of knee (Q68.2); congenital genu recurvatum (Q68.2); nail patella syndrome (Q87.2); polydactyly (Q69.-); reduction defect of limb (Q71-Q73); syndactyly (Q70.-).","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":""}