| ICD-10-CM-2023 > G00-G99 > G89-G99 > G91 |
G89-G99 | Other disorders of the nervous system | |
G91 | Hydrocephalus | |
Incl.: | acquired hydrocephalus | |
Excl1.: | Arnold-Chiari syndrome with hydrocephalus (Q07.-) congenital hydrocephalus (Q03.-) spina bifida with hydrocephalus (Q05.-) | |
G91.0 | Communicating hydrocephalus | |
Info: | Secondary normal pressure hydrocephalus | |
G91.1 | Obstructive hydrocephalus | |
G91.2 | (Idiopathic) normal pressure hydrocephalus | |
Info: | 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) | |
Excl1.: | hydrocephalus due to congenital toxoplasmosis (P37.1) | |
G91.8 | Other hydrocephalus | |
G91.9 | Hydrocephalus, unspecified | |
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