{"code":"Q66.219","type":"code","title":"Congenital metatarsus primus varus, unspecified foot","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["reduction defects of feet (Q72.-)","valgus deformities (acquired) (M21.0-)","varus deformities (acquired) (M21.1-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["Q66","Q66.0","Q66.1","Q66.2","Q66.211","Q66.212","Q66.221","Q66.222","Q66.229","Q66.3","Q66.4","Q66.5","Q66.6","Q66.7","Q66.8","Q66.9"],"inclusionTerms":[],"sibling_titles":{"code":"Q66.9","title":"Congenital deformity of feet, unspecified","isBillable":false},"useAdditionalCode":[],"clinicalDefinition":"Congenital metatarsus primus varus, unspecified foot is a billable ICD-10-CM diagnosis code (Q66.219). Excludes1 (not coded here): reduction defects of feet (Q72.-); valgus deformities (acquired) (M21.0-); varus deformities (acquired) (M21.1-).","officialDefinition":"Congenital metatarsus primus varus, unspecified foot is a billable ICD-10-CM diagnosis code (Q66.219). Excludes1 (not coded here): reduction defects of feet (Q72.-); valgus deformities (acquired) (M21.0-); varus deformities (acquired) (M21.1-).","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":""}