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G91 Hydrocephalus
BackG91.0Communicating hydrocephalusCategoryG91.1Obstructive hydrocephalusCategoryG91.2(Idiopathic) normal pressure hydrocephalusCategoryG91.3Post-traumatic hydrocephalus, unspecifiedCategoryG91.4Hydrocephalus in diseases classified elsewhereCategoryG91.8Other hydrocephalusCategoryG91.9Hydrocephalus, unspecifiedCategory
Category
G91
Hydrocephalus
INCLUDES
acquired hydrocephalus
EXCLUDES
Excludes1: Arnold-Chiari syndrome with hydrocephalus (Q07.-)
congenital hydrocephalus (Q03.-)
spina bifida with hydrocephalus (Q05.-)
congenital hydrocephalus (Q03.-)
spina bifida with hydrocephalus (Q05.-)
- Chapter
- VI · Diseases of the nervous system
- Section
- G89-G99
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.