8A65

ICD-11 MMS 2026-01

Single unprovoked seizure

Description

A seizure occurring in the absence of a potentially responsible structural or metabolic condition or beyond the interval estimated for the occurrence of an acute symptomatic seizure.

Coding note from above levels

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

Index terms

  • Single unprovoked seizure

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

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
  • 8A63 – Seizure due to acute causes
  • 8A64 – Single seizure due to remote causes
  • 8A66 – Status epilepticus
  • 8A67 – Acute repetitive seizures
  • 8A68 – Types of seizures
  • 8A6Y – Other specified epilepsy or seizures
  • 8A6Z – Epilepsy or seizures, unspecified

Foundation entity

Single unprovoked seizure – http://id.who.int/icd/entity/429021871

Part of: 08: Diseases of the nervous system