Category: G91 - Hydrocephalus

 Chapter Notes

 G91

Hydrocephalus

acquired hydrocephalus

Arnold-Chiari syndrome with hydrocephalus (Q07.-)

congenital hydrocephalus (Q03.-)

spina bifida with hydrocephalus (Q05.-)

 G91.0

Communicating hydrocephalus

Secondary normal pressure hydrocephalus

 G91.1

Obstructive hydrocephalus

 G91.2

(Idiopathic) normal pressure hydrocephalus

Normal pressure hydrocephalus NOS

 G91.3

Post-traumatic hydrocephalus, unspecified

 G91.4

Hydrocephalus in diseases classified elsewhere

Code first underlying condition, such as:

congenital syphilis (A50.4-)

neoplasm (C00-D49)

plasminogen deficiency (E88.02)

hydrocephalus due to congenital toxoplasmosis (P37.1)

 G91.8

Other hydrocephalus

 G91.9

Hydrocephalus, unspecified