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Taxonomy Codes
Q03.9 CONGENITAL HYDROCEPHALUS, UNSPECIFIED
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ICD-10 List
Q00-Q99
Q00-Q07
Q03
Q03.9
Code Information
Diagnosis Code:
Q03.9
Short Description:
Congenital hydrocephalus, unspecified
Long Description:
Congenital hydrocephalus, unspecified
Code Version:
2025 ICD-10-CM
The code Q03.9 is VALID for claim submission
Code Classification
Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Congenital malformations of the nervous system (Q00-Q07)
Congenital hydrocephalus (Q03)
Synonyms
Abnormal blue sclerae
Agenesis of cerebellum
Aqueduct of Sylvius anomaly
Arrested hydrocephalus
Beemer Ertbruggen syndrome
Central obesity
Cerebellum agenesis with hydrocephaly
Cerebral degeneration due to congenital hydrocephalus
Cerebrospinal fluid rhinorrhea
Cerebrospinal fluid rhinorrhea due to hydrocephalus
Congenital anomaly of sclera
Congenital deformity of lumbosacral region
Congenital elevation of scapula
Congenital endocardial fibroelastosis
Congenital hydrocephalus
Congenital hydrocephalus, low insertion of umbilicus syndrome
Congenital hypoplasia of cerebral hemisphere
Congenital hypoplasia of cerebral white matter
Congenital kyphosis
Congenital kyphosis of thoracic spine
Congenital malformation of the meninges
Congenital obstructive hydrocephalus
Congenital stenosis of aqueduct of Sylvius
Cranial cerebrospinal fluid leak
Craniosynostosis with Dandy-Walker malformation and hydrocephalus syndrome
Dandy-Walker syndrome
Endocardial fibroelastosis
External hydrocephalus
Game Friedman Paradice syndrome
Hydrocephalus
Hydrocephalus associated with congenital aqueduct stenosis
Hydrocephalus with endocardial fibroelastosis and cataract syndrome
Hydrocephalus with obesity and hypogonadism syndrome
Hydrocephalus, blue sclera, nephropathy syndrome
Hydrocephalus, costovertebral dysplasia, Sprengel anomaly syndrome
Hydrocephalus, tall stature, joint laxity syndrome
Hypoplasia of corpus callosum
Internal hydrocephalus
Kyphosis of thoracic spine
L1 syndrome
Leak of cranial cerebrospinal fluid due to hydrocephalus
Macroencephaly
Mega cisterna magna
Megalencephaly, polymicrogyria, postaxial polydactyly, hydrocephalus syndrome
Obstructive hydrocephalus
Port-wine nevi, mega cisterna magna, hydrocephalus syndrome
Port-wine stain of skin
Thoracic dysplasia and hydrocephalus syndrome
VACTERL syndrome with hydrocephalus
X-linked hydrocephalus syndrome
Crosswalk Information
ICD-10 Code
ICD-9 Code
ICD-9 Description
Q03.9
742.3
Congenital hydrocephalus
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.
Similar Codes
ICD-10 Code
ICD-10 Description
Q03
Congenital hydrocephalus
Q03.0
Malformations of aqueduct of Sylvius
Q03.1
Atresia of foramina of Magendie and Luschka
Q03.8
Other congenital hydrocephalus
This page was last updated on: 10/1/2025
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