8A63

ICD-11 MMS 2026-01

Seizure due to acute causes

Description

A clinical seizure occurring at the time of a systemic insult or in close temporal association with a documented brain insult.

Coding note from above levels

Use additional code, if desired, to identify the type of seizure.

Excludes

  • 8A80.3Y – Migraine aura-triggered seizures

Exclusions from above levels

  • MG45 – Syncope
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
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  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes

Child codes

  • 8A63.0 – Febrile seizures
  • 8A63.Y – Seizure due to other acute cause
  • 8A63.Z – Seizure due to unspecified acute cause

Sibling codes

  • 8A60 – Epilepsy due to structural or metabolic conditions or diseases
  • 8A61 – Genetic or presumed genetic syndromes primarily expressed as epilepsy
  • 8A62 – Epileptic encephalopathies
  • 8A64 – Single seizure due to remote causes
  • 8A65 – Single unprovoked seizure
  • 8A66 – Status epilepticus
  • 8A67 – Acute repetitive seizures
  • 8A68 – Types of seizures
  • 8A6Y – Other specified epilepsy or seizures
  • 8A6Z – Epilepsy or seizures, unspecified

Foundation entity

Seizure due to acute causes – http://id.who.int/icd/entity/1376414432

Allowed postcoordination axes

Part of: 08: Diseases of the nervous system