8D61

ICD-11 MMS 2026-01

Intracranial hypotension

Description

The syndrome of intracranial hypotension is a single pathophysiological entity of diverse origin. Usually it is characterised by an orthostatic headache, one that occurs or worsens with upright posture. Patients with chronic headaches and asymptomatic patients have been described.

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

Child codes

  • 8D61.0 – Spontaneous intracranial hypotension
  • 8D61.1 – Secondary intracranial hypotension
  • 8D61.Y – Other specified intracranial hypotension
  • 8D61.Z – Intracranial hypotension, unspecified

Sibling codes

  • 8D60 – Increased intracranial pressure
  • 8D62 – Cerebrospinal fluid rhinorrhoea
  • 8D63 – Cerebrospinal fluid otorrhoea
  • 8D64 – Hydrocephalus
  • 8D65 – Cerebrospinal fluid fistula
  • 8D66 – Syringomyelia or syringobulbia
  • 8D67 – Intracranial arachnoid cyst
  • 8D68 – Porencephalic cyst
  • 8D6Y – Other specified disorders of cerebrospinal fluid pressure or flow
  • 8D6Z – Disorders of cerebrospinal fluid pressure or flow, unspecified

Foundation entity

Intracranial hypotension – http://id.who.int/icd/entity/363695674

Part of: 08: Diseases of the nervous system