G91 Non-Billable Code
Hydrocephalus
Chapter Classification
Chapter 6
Diseases of the nervous system (G00-G99)
Section Detail
G89-G99
Other disorders of the nervous system (G89-G99)
Coding Guidelines & Notes
includes
- acquired hydrocephalus
excludes1
- Arnold-Chiari syndrome with hydrocephalus (Q07.-)
- congenital hydrocephalus (Q03.-)
- spina bifida with hydrocephalus (Q05.-)
More Specific Diagnosis Codes
This code is not billable as it requires a higher level of specificity. Select a more specific code below.
- G91.0 - Communicating hydrocephalus Billable
- G91.1 - Obstructive hydrocephalus Billable
- G91.2 - (Idiopathic) normal pressure hydrocephalus Billable
- G91.3 - Post-traumatic hydrocephalus, unspecified Billable
- G91.4 - Hydrocephalus in diseases classified elsewhere Billable
- G91.8 - Other hydrocephalus Billable
- G91.9 - Hydrocephalus, unspecified Billable
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