8D64.10

ICD-11 MMS 2026-01

Hydrocephalus due to structural malformations

Description

Ventricular enlargement due to an accumulation of cerebrospinal fluid secondary to obstruction caused by a structural abnormality such as Chiari malformations or aqueductal stenosis.

Index terms

  • Hydrocephalus due to structural malformations
  • Hydrocephalus due to aqueduct stenosis
  • Hydrocephalus due to Arnold-Chiari malformation

Exclusions from above levels

  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
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  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • 8D64.1Y – Other specified non-communicating hydrocephalus
  • 8D64.1Z – Non-communicating hydrocephalus, unspecified

Foundation entity

Hydrocephalus due to structural malformations – http://id.who.int/icd/entity/1943473314

Part of: 8D64.1: Non-communicating hydrocephalus › 8D64: Hydrocephalus › 08: Diseases of the nervous system