ICD-11 classes
08 Diseases of the nervous system
Disorders of cerebrospinal fluid pressure or flow
8D64 — Hydrocephalus
8D64.2 — Ex-vacuo hydrocephalus

ICD-11 8D64.2 — Ex-vacuo hydrocephalus

Hydrocephalus ex-vacuo occurs when there is damage to the brain caused by stroke, injury, or radiation, and there may be an actual shrinkage of brain substance. Although there is more CSF than usual, the CSF pressure itself is normal in hydrocephalus ex-vacuo.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.