ICD-10 Code G43.001 – Migraine without aura, not intractable, with status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.001 – Migraine without aura, not intractable, with status migrainosus
What it is
This code identifies a migraine headache without aura that is not described as intractable, but the episode has progressed to status migrainosus. In practice, you are coding a prolonged or unusually persistent migraine attack.
Clinical signs
Typical findings include a recurrent migraine pattern with severe headache, often with nausea, vomiting, and sensitivity to light or sound. Clinical features vary; refer to documentation for the presence of status migrainosus and absence of aura.
When to use this code
Use this code when the record clearly documents migraine without aura and the provider states status migrainosus. Choose it when the migraine is not intractable and there is no documentation of aura. If the note is unclear, check documentation.
Do not use for
Do not use this code if the migraine is documented with aura, is intractable, or does not meet status migrainosus criteria. Do not assume severity or subtype from symptoms alone.
Coding tip
Code only when the provider explicitly links the migraine episode to status migrainosus and confirms no aura.