8A66ICD-11 MMS 2026-01
Status epilepticus
Description
Status epilepticus is defined as 5 min or more of (i) continuous clinical and/or electrographic seizure activity or (ii) recurrent seizure activity without recovery (returning to baseline) between seizures.
Coding note from above levels
Use additional code, if desired, to identify the type of seizure.
Exclusions from above levels
Child codes
Sibling codes
8A60– Epilepsy due to structural or metabolic conditions or diseases8A61– Genetic or presumed genetic syndromes primarily expressed as epilepsy8A62– Epileptic encephalopathies8A63– Seizure due to acute causes8A64– Single seizure due to remote causes8A65– Single unprovoked seizure8A67– Acute repetitive seizures8A68– Types of seizures8A6Y– Other specified epilepsy or seizures8A6Z– Epilepsy or seizures, unspecified
Foundation entity
Part of: 08: Diseases of the nervous system