RxDB
ICD-10-CM Codes Browse (Tabular) Diagnostic External Drug Neoplasm

G91 – Hydrocephalus

Overview

Coding Notes

Active
Non-billable / Non-specific, not valid for HIPAA-covered transactions

Type 1 Excludes

Arnold-Chiari syndrome with hydrocephalus (Q07.-)
congenital hydrocephalus (Q03.-)
spina bifida with hydrocephalus (Q05.-)

Includes

acquired hydrocephalus

Child Codes

Communicating hydrocephalus
Obstructive hydrocephalus
(Idiopathic) normal pressure hydrocephalus
Post-traumatic hydrocephalus, unspecified
Hydrocephalus in diseases classified elsewhere
Other hydrocephalus
Hydrocephalus, unspecified

Sibling Codes

Disorders of autonomic nervous system
Toxic encephalopathy
Other disorders of brain
Other disorders of brain in diseases classified elsewhere
Other and unspecified diseases of spinal cord
Other disorders of central nervous system
Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified
Other disorders of nervous system not elsewhere classified
Other disorders of nervous system in diseases classified elsewhere

View in Tabular

Code Title
G00-G99 Diseases of the nervous system (G00-G99)
G89-G99 Other disorders of the nervous system (G89-G99)
G91 Hydrocephalus
Type 1 Excludes
Arnold-Chiari syndrome with hydrocephalus (Q07.-)
congenital hydrocephalus (Q03.-)
spina bifida with hydrocephalus (Q05.-)

Includes
acquired hydrocephalus

G91.0 Communicating hydrocephalus
G91.1 Obstructive hydrocephalus
G91.2 (Idiopathic) normal pressure hydrocephalus
G91.3 Post-traumatic hydrocephalus, unspecified
G91.4 Hydrocephalus in diseases classified elsewhere
G91.8 Other hydrocephalus
G91.9 Hydrocephalus, unspecified