ICD-10 Code G43.8 – Other migraine (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.8 – Other migraine
What it is
Use this code for migraine disorders that do not fit a more specific ICD-10 migraine category. It identifies a migraine diagnosis when the record supports migraine, but the type is not otherwise classified.
Clinical signs
Typical migraine features may include recurrent headache episodes, nausea, vomiting, and sensitivity to light or sound. Clinical features vary; refer to documentation.
When to use this code
Assign G43.8 when the provider documents migraine and does not specify migraine with aura, without aura, or another listed subtype. It may also apply when the note clearly states “other migraine” or a comparable nonspecific migraine diagnosis. Check documentation if the subtype is unclear.
Do not use for
Do not use this code for tension-type headache, cluster headache, or a more specific migraine code when the record supports one. If the diagnosis is uncertain, check documentation before coding.
Coding tip
Code the most specific migraine type documented, and use G43.8 only when the chart supports migraine but not a more precise subtype.