has modifier hydrocephalus congenital nervous system disorder non-syndromic central nervous system malformation congenital hydrocephalus COHD:438244 HYC3 Hydrocephalus that is present at birth. ICD10:Q03 ICD10:Q03.0 ICD10:Q03.1 ICD10:Q03.8 ICD10:Q03.9 MONDO:0016349 MedDRA:10010506 NCIT:C98876 OMIMPS:236600 Orphanet:2185 SCTID:47032000 UMLS:C0020256 congenital hydrocephalus genetic nervous system disorder congenital disorder of development or morphogenesis