ICD-10 Code G43.701 – Chronic migraine without aura, not intractable, with status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.701 – Chronic migraine without aura, not intractable, with status migrainosus
What it is
This code identifies chronic migraine without aura that is not intractable and is currently in status migrainosus. Use it when the record shows a prolonged migraine attack in a patient with chronic migraine and no aura.
Clinical signs
Typical findings include recurrent migraine headaches occurring on many days, without preceding aura symptoms. Status migrainosus means the headache attack is unusually prolonged and severe; clinical features vary, so refer to documentation.
When to use this code
Use this code when the provider documents chronic migraine without aura and also states status migrainosus. It fits outpatient or inpatient records where the current episode is prolonged, but the migraine is not described as intractable. Confirm that aura is absent and that the chronic pattern is documented.
Do not use for
Do not use it for migraine with aura, episodic migraine, or migraine described as intractable. Check documentation if the record does not clearly confirm chronic migraine or status migrainosus.
Coding tip
Verify all three elements in the note: chronic migraine, no aura, and status migrainosus.