{"code":"Q03.8","type":"code","title":"Other congenital hydrocephalus","codeAlso":[],"includes":["hydrocephalus in newborn"],"modern_v":"official26","codeFirst":[],"excludes1":["Arnold-Chiari syndrome, type II (Q07.0-)","acquired hydrocephalus (G91.-)","hydrocephalus due to congenital toxoplasmosis (P37.1)","hydrocephalus with spina bifida (Q05.0-Q05.4)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["Q03","Q03.0","Q03.1","Q03.9"],"inclusionTerms":[],"sibling_titles":{"code":"Q03.9","title":"Congenital hydrocephalus, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Other congenital hydrocephalus is a billable ICD-10-CM diagnosis code (Q03.8). Includes: hydrocephalus in newborn. Excludes1 (not coded here): Arnold-Chiari syndrome, type II (Q07.0-); acquired hydrocephalus (G91.-); hydrocephalus due to congenital toxoplasmosis (P37.1); hydrocephalus with spina bifida (Q05.0-Q05.4).","officialDefinition":"Other congenital hydrocephalus is a billable ICD-10-CM diagnosis code (Q03.8). Includes: hydrocephalus in newborn. Excludes1 (not coded here): Arnold-Chiari syndrome, type II (Q07.0-); acquired hydrocephalus (G91.-); hydrocephalus due to congenital toxoplasmosis (P37.1); hydrocephalus with spina bifida (Q05.0-Q05.4).","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":{"Arnold-Chiari syndrome, type II (Q07.0-)":"Q03","acquired hydrocephalus (G91.-)":"Q03","hydrocephalus due to congenital toxoplasmosis (P37.1)":"Q03","hydrocephalus with spina bifida (Q05.0-Q05.4)":"Q03","hydrocephalus in newborn":"Q03"},"hcc":{"mapped":true,"model":"CMS-HCC V28","paymentYear":"2026","categories":[{"hcc":"182","label":"Spinal Cord Disorders/Injuries","family":"","suppresses":[]}],"otherModels":[{"model":"CMS-HCC V22","hcc":"72"},{"model":"RxHCC V08","hcc":"155"}]}}