ICD-10 Code G43.E11 – Chronic migraine with aura, intractable, with status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.E11 – Chronic migraine with aura, intractable, with status migrainosus
What it is
This code identifies a chronic migraine disorder with aura that does not respond well to treatment and is complicated by status migrainosus. It signals a prolonged, severe migraine episode in a patient with established migraine history.
Clinical signs
Expect recurrent migraine attacks with aura, meaning reversible neurologic symptoms such as visual or sensory changes before headache onset. Status migrainosus indicates a migraine attack lasting longer than typical, often with significant disability; clinical features vary, refer to documentation.
When to use this code
Use this code when the record clearly documents chronic migraine with aura, intractable symptoms, and status migrainosus. You should also confirm that the provider describes the headache as persistent or prolonged rather than a routine migraine flare. If documentation is incomplete, check documentation before assigning a more specific code.
Do not use for
Do not use this code for migraine without aura, nonchronic migraine, or a headache episode that is not documented as intractable or status migrainosus. Do not assume aura or chronicity from history alone.
Coding tip
Code only when all three elements—chronic migraine, aura, and intractable status migrainosus—are explicitly documented.