ICD-10 Code G43.E01 – Chronic migraine with aura, not intractable, with status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.E01 – Chronic migraine with aura, not intractable, with status migrainosus
What it is
This code identifies chronic migraine with aura that is not described as intractable and is currently in status migrainosus. It means the migraine pattern is ongoing, includes aura, and the current attack is prolonged or unusually severe.
Clinical signs
Typical documentation includes recurrent migraine attacks with aura, such as visual or sensory neurologic symptoms before headache. Status migrainosus indicates a migraine attack lasting longer than usual; clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly states chronic migraine with aura and specifies that the condition is not intractable. It also must document status migrainosus, not just a routine migraine flare. Check documentation if the note does not distinguish chronic from episodic migraine.
Do not use for
Do not use this code if aura is absent, if the migraine is documented as intractable, or if status migrainosus is not mentioned. Do not assign it when the diagnosis is only headache or unspecified migraine.
Coding tip
Code the highest level of specificity only when the provider documents chronic migraine, aura, nonintractable status, and status migrainosus together.