ICD-10 Code G43.009 – Migraine without aura, not intractable, without status migrainosus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.009 – Migraine without aura, not intractable, without status migrainosus
What it is
This code identifies a migraine headache without aura when the condition is not intractable and there is no status migrainosus. It applies when the record supports a typical migraine diagnosis but does not describe prolonged or resistant attacks.
Clinical signs
Migraine without aura commonly presents with recurrent headache episodes, often unilateral and moderate to severe, sometimes with nausea, vomiting, or sensitivity to light or sound. Clinical features vary; refer to documentation.
When to use this code
Use G43.009 when the provider documents migraine without aura and does not indicate intractability or status migrainosus. It is appropriate for routine outpatient, emergency, or follow-up visits when the diagnosis is established and no complication is described.
If the note says only “migraine” and does not specify aura status, check documentation before coding. Confirm that the record supports a non-intractable episode rather than a chronic, refractory, or prolonged attack.
Do not use for
Do not use this code for migraine with aura, intractable migraine, or migraine with status migrainosus. Check documentation if the provider uses a different migraine subtype or records a secondary headache diagnosis.
Coding tip
Code from the provider’s exact migraine wording, and verify that “without aura” and “not intractable” are both documented before assigning G43.009.