ICD-10-CM Book 2025 Edition

Chapters ICD-10-CM Book Table of Content /
chapter 6 G00-G99 Diseases of the nervous system /
G89-G99 Other disorders of the nervous system /
G91 Hydrocephalus

  Billable ICD-10-CM Code G91.4
G91.4
Hydrocephalus in diseases classified elsewhere
codeFirst
underlying condition, such as:
congenital syphilis (A50.4-)
neoplasm (C00-D49)
plasminogen deficiency (E88.02)
excludes1
hydrocephalus due to congenital toxoplasmosis (P37.1)
nonPrimary
Yes