ICD-10 Code G43.019 – Migraine without aura, intractable, without status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.019 – Migraine without aura, intractable, without status migrainosus
What it is
This code identifies a migraine headache without aura that is difficult to control with usual therapy, but not accompanied by status migrainosus. Use it when the record clearly states intractable migraine without aura.
Clinical signs
Typical migraine features include recurrent headache, often throbbing or unilateral, with nausea, vomiting, or light sensitivity. Clinical features vary; refer to documentation, and confirm the absence of aura and status migrainosus.
When to use this code
Use G43.019 when the provider documents migraine without aura as intractable and does not describe status migrainosus. It is appropriate for outpatient, inpatient, or emergency records when the diagnosis is established. Check documentation if the note only says “migraine” or does not specify intractability.
Do not use for
Do not use this code for migraine with aura, status migrainosus, or headaches that are not documented as migraine. If the chart is nonspecific, code the documented headache type instead.
Coding tip
Verify both key qualifiers—without aura and intractable—before assigning G43.019.