ICD-10 Code G43.E19 – Chronic migraine with aura, intractable, without status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.E19 – Chronic migraine with aura, intractable, without status migrainosus
What it is
This code identifies chronic migraine with aura that is hard to control and not currently in status migrainosus. Use it when the record shows recurrent migraine attacks with aura and the condition is described as intractable.
Clinical signs
Typical documentation includes repeated migraine episodes, aura symptoms before or during headache, and chronic pattern over time. Clinical features vary; refer to documentation for frequency, aura type, and whether the migraine is specifically labeled intractable.
When to use this code
Use this code when the provider documents chronic migraine with aura and states it is intractable. It also applies when the note clearly indicates the patient is not in status migrainosus. If aura or intractability is not documented, check documentation before coding.
Do not use for
Do not use this code for migraine without aura, nonchronic migraine, or migraine not described as intractable. Do not assign it for status migrainosus cases or when the record is too vague to support the specific diagnosis.
Coding tip
Verify all three elements in the note: chronicity, aura, and intractability, before selecting G43.E19.