ICD-10 Code G43.919 – Migraine, unspecified, intractable, without status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.919 – Migraine, unspecified, intractable, without status migrainosus
What it is
This code identifies a migraine headache that is not further specified and is described as intractable, meaning it is difficult to control. It is not coded as status migrainosus.
Clinical signs
Typical migraine features may include recurrent headache with nausea, vomiting, photophobia, or phonophobia. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents migraine but does not specify the type, and the episode is described as intractable. It is appropriate when the record clearly states the headache is not status migrainosus. If the documentation gives a more specific migraine subtype, code that instead.
Do not use for
Do not use this code for migraine with status migrainosus or for a more specific migraine diagnosis documented elsewhere. Check documentation if the record only says “headache” or does not confirm migraine.
Coding tip
Verify both elements: unspecified migraine and intractable, with no status migrainosus documented.