8B22.5

ICD-11 MMS 2026-01

Cerebral aneurysm, nonruptured

Index terms

  • Cerebral aneurysm, nonruptured
  • Cerebral aneurysm NOS
  • acquired arteriovenous brain aneurysm
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  • acquired brain arteriovenous fistula
  • acquired cerebral aneurysm
  • acquired cerebral arteriovenous fistula
  • arteriosclerotic brain aneurysm
  • arteriosclerotic cerebral aneurysm
  • berry brain aneurysm
  • brain aneurysm
  • brain arteriovenous fistula
  • cavernous sinus aneurysm
  • circle of Willis aneurysm
  • meningeal brain aneurysm
  • miliary aneurysm
  • nonruptured berry brain aneurysm

Excludes

  • 8B01.0 – ruptured cerebral aneurysm
  • BD51.0 – Carotid aneurysm
  • LA90.42 – Congenital cerebral nonruptured aneurysm

Exclusions from above levels

  • 8B25 – Late effects of cerebrovascular disease
  • NA07 – Intracranial injury
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • 8B22.0 – Dissection of cerebral arteries
  • 8B22.1 – Cerebral venous thrombosis
  • 8B22.2 – Cerebral vasoconstriction syndromes
  • 8B22.3 – Isolated cerebral amyloid angiopathy
  • 8B22.4 – Intracranial vascular malformation
  • 8B22.6 – Familial cerebral saccular aneurysm
  • 8B22.7 – Cerebral arteritis, not elsewhere classified
  • 8B22.8 – Hypertensive encephalopathy
  • 8B22.9 – Migraine-induced stroke
  • 8B22.A – Subclavian steal syndrome
  • 8B22.B – Moyamoya syndrome
  • 8B22.C – Hereditary cerebrovascular diseases
  • 8B22.Y – Other specified cerebrovascular disease

Foundation entity

Cerebral aneurysm, nonruptured – http://id.who.int/icd/entity/289522729

Allowed postcoordination axes

Part of: 8B22: Certain specified cerebrovascular diseases › 08: Diseases of the nervous system