Genetic epileptic syndrome with adolescent or adult onset

Definition

Includes a wide array of epilepsy syndromes having a (presumed) genetic origin, with onset in adolescence or in adult life. The developmental background is usually normal. Family history of epilepsy is frequently present. Focal and generalised seizures may be present most frequently in isolation to mark the diagnostic category, and rarely in combination. The interictal and ictal EEG may show typical, sometimes pathognomonic, patterns. Neuroimaging is normal although focal abnormalities are occasionally reported.

5 subordinate codes

• 8A61.30Juvenile myoclonic epilepsy
• 8A61.31Juvenile absence epilepsy
• 8A61.32Benign adult familial myoclonus epilepsy
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Genetic or presumed genetic syndromes primarily expressed as epilepsy

• 8A61.0Genetic epileptic syndromes with neonatal onset
• 8A61.1Genetic epileptic syndromes with onset in infancy
• 8A61.2Genetic epileptic syndromes with childhood onset
• 8A61.4Genetic epileptic syndromes with variable age of onset
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified