Q03
Non-billableCongenital hydrocephalus
Congenital hydrocephalus
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- hydrocephalus in newborn
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Child Codes (4)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(19)
UMLS
- CONGEN HYDROCEPHALUSC0020256
- Congenital HydrocephalusC0020256
- Congenital dilatation of cerebral ventriclesC0020256
- Congenital hydrencephalusC0020256
- Congenital hydrencephalyC0020256
- Congenital hydrocephalusC0020256
- Congenital hydrocephalus (disorder)C0020256
- Congenital hydrocephalus, unspecifiedC0020256
- Congenital hydrocephalyC0020256
- Hydrocephalus congenitalC0020256
- Hydrocephalus in newbornC0020256
- Hydrocephalus, CongenitalC0020256
- Hydrocephalus, congenitalC0020256
- Primary hydrocephalusC0020256
- Primary hydrocephalyC0020256
- congenital hydrocephalusC0020256
- congenital hydrocephalyC0020256
- hydrocephalus congenitalC0020256
- hydrocephalus in newbornC0020256
Frequently Asked Questions
What is the ICD-10 code for congenital hydrocephalus?
The ICD-10-CM code for congenital hydrocephalus is Q03. The full clinical description is "Congenital hydrocephalus". Q03 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code Q03 mean?
ICD-10-CM code Q03 represents “Congenital hydrocephalus”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a non-billable header code. Use a more specific child code for billing purposes.
Is Q03 a billable code?
No, Q03 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under Q03.
What chapter is Q03 in?
Q03 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q03?
Q03 has Excludes1 notes indicating codes that cannot be used together with it, including: Arnold-Chiari syndrome, type II (Q07.0-); acquired hydrocephalus (G91.-); hydrocephalus due to congenital toxoplasmosis (P37.1); and 1 more.
What are the subcategories under Q03?
Q03 has 4 child codes, including: Q03.0 (Malformations of aqueduct of Sylvius), Q03.1 (Atresia of foramina of Magendie and Luschka), Q03.8 (Other congenital hydrocephalus), Q03.9 (Congenital hydrocephalus, unspecified).
What are the UMLS CUIs for Q03?
Q03 is linked to 1 UMLS Concept Unique Identifier: C0020256. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Q03 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like congenital hydrocephalus affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Q03?
Q03 maps to the ICD-11 code: LA04.Z (Congenital hydrocephalus, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.