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8A61.3 Genetic epileptic syndrome with adolescent or adult onset

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

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.

sections/codes in this section (8A61.3-8A61.3)

• Juvenile myoclonic epilepsy  (8A61.30)
• Juvenile absence epilepsy  (8A61.31)
• Benign adult familial myoclonus epilepsy  (8A61.32)
• Other specified genetic epileptic syndrome with adolescent or adult onset  (8A61.3Y)
• Genetic epileptic syndrome with adolescent or adult onset, unspecified  (8A61.3Z)

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