8D64 Hydrocephalus

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

Hydrocephalus is an abnormal buildup of cerebrospinal fluid (CSF) deep within the brain. This excess fluid causes the ventricles (cavities) within the brain to widen, putting harmful pressure on the brain's tissues. Hydrocephalus may be present at or shortly after birth or may result over time from damage or injury.

code elsewhere

• Neonatal hydrocephalus  (KB05)

sections/codes in this section ()

• Communicating hydrocephalus  (8D64.0)
• Non-communicating hydrocephalus  (8D64.1)
• Ex-vacuo hydrocephalus  (8D64.2)
• Hydrocephalus, unspecified  (8D64.Z)

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