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IHS Diagnosis ICD-10
1.5.5 Migraine-triggered seizure G43.3 + G40.x or G41.x  


A seizure triggered by a migraine aura.

Diagnostic criteria:

  1. Migraine fulfilling criteria for 1.2 Migraine with aura
  2. A seizure fulfilling diagnostic criteria for one type of epileptic attack occurs during or within 1 hour after a migraine aura


Migraine and epilepsy are prototypical examples of paroxysmal brain disorders. While migraine-like headaches are quite frequently seen in the postictal period, sometimes a seizure occurs during or following a migraine attack. This phenomenon, sometimes referred to as migralepsy, has been described in patients with migraine with aura.