ICD-10 Code G43.831 – Menstrual migraine, intractable, with status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.831 – Menstrual migraine, intractable, with status migrainosus
What it is
This code identifies a menstrual migraine that does not respond well to treatment and has progressed to status migrainosus. Use it when the headache is linked to the menstrual cycle and lasts or intensifies beyond a typical migraine episode.
Clinical signs
Expect migraine features such as unilateral throbbing pain, nausea, vomiting, and sensitivity to light or sound. Status migrainosus means the attack is prolonged and severe; clinical features vary, so refer to documentation.
When to use this code
Use this code when the record clearly states menstrual migraine, intractable, with status migrainosus. It is appropriate when the provider documents both the menstrual association and poor response to usual therapy. If either element is unclear, check documentation.
Do not use for
Do not use this code for ordinary menstrual migraine without intractability or without status migrainosus. Do not assign it for nonspecific headache, tension headache, or migraine not tied to the menstrual cycle.
Coding tip
Verify that the note supports all three elements: menstrual, intractable, and status migrainosus.