ICD-11 classes
11 Diseases of the circulatory system
Hypotension
8D61 — Intracranial hypotension

ICD-11 8D61 — Intracranial hypotension

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 or are asymptomatic have been described.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code 8D61 contains 4 clarifying diagnoses:

1. 8D61.0 — Spontaneous intracranial hypotension
2. 8D61.1 — Secondary intracranial hypotension
   It contains 1 clarifying diagnosis.
3. 8D61.Y — Other specified intracranial hypotension
4. 8D61.Z — Intracranial hypotension, unspecified

The diagnosis is coded elsewhere:

• Disorders of cerebrospinal fluid pressure or flow #7599
• Intracranial hypotension #7605