G91
Hydrocephalus
Non-billableCategory
Coding Guidelines
Includes
- acquired hydrocephalus
Excludes1 (Mutually Exclusive)
These codes should never be used together with G91
- Arnold-Chiari syndrome with hydrocephalus (Q07.-)
- congenital hydrocephalus (Q03.-)
- spina bifida with hydrocephalus (Q05.-)
Specific Codes (7)
G91.0Billable
Communicating hydrocephalus
G91.1Billable
Obstructive hydrocephalus
G91.2Billable
(Idiopathic) normal pressure hydrocephalus
G91.3Billable
Post-traumatic hydrocephalus, unspecified
G91.4Billable
Hydrocephalus in diseases classified elsewhere
G91.8Billable
Other hydrocephalus
G91.9Billable
Hydrocephalus, unspecified
