8B24

ICD-11 MMS 2026-01

Hypoxic-ischaemic encephalopathy

Description

Brain damage due to hypoxia-ischemia: Previous term Anoxic brain damage has been changed. The new term is now widely accepted, and better describes the pathophysiology, i.e., the combination of complete and incomplete transitory global cerebral ischemia together with a combination of anoxia and hypoxia. In a surviving patient, pure anoxic encephalopathy is very uncommon.

Excludes

  • http://id.who.int/icd/entity/383104340 – complicating: surgical and medical care
  • http://id.who.int/icd/entity/877352786 – complicating: abortion or ectopic or molar pregnancy
  • JA67.2 – Central nervous system complications of anaesthesia during pregnancy
  • JB0C.3 – Central nervous system complications of anaesthesia during labour or delivery
  • JB43.2 – Central nervous system complications of anaesthesia during the puerperium
  • KB21 – neonatal anoxia

Exclusions from above levels

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

Child codes

  • 8B24.0 – Anoxic-ischaemic encephalopathy
  • 8B24.Y – Other specified hypoxic-ischaemic encephalopathy
  • 8B24.Z – Hypoxic-ischaemic encephalopathy, unspecified

Foundation children elsewhere

  • KB04 – Hypoxic ischaemic encephalopathy of newborn

Sibling codes

  • 8B20 – Stroke not known if ischaemic or haemorrhagic
  • 8B21 – Cerebrovascular disease with no acute cerebral symptom
  • 8B22 – Certain specified cerebrovascular diseases
  • 8B23 – Cerebrovascular abnormalities
  • 8B25 – Late effects of cerebrovascular disease
  • 8B26 – Vascular syndromes of brain in cerebrovascular diseases
  • 8B2Z – Cerebrovascular diseases, unspecified

Foundation entity

Hypoxic-ischaemic encephalopathy – http://id.who.int/icd/entity/805990521

Allowed postcoordination axes

Part of: 08: Diseases of the nervous system