ICD-10 Code G43.5 – Persistent migraine aura without cerebral infarction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G43.5 – Persistent migraine aura without cerebral infarction
What it is
G43.5 identifies persistent migraine aura that continues after the migraine attack but occurs without evidence of cerebral infarction. Use it when the record documents prolonged aura symptoms rather than a stroke.
Clinical signs
Clinical features vary; refer to documentation. Typical notes describe ongoing visual, sensory, or speech-related aura symptoms lasting longer than expected, with no imaging or clinical evidence of cerebral infarction.
When to use this code
Use this code when the provider documents persistent aura as the diagnosis and explicitly rules out cerebral infarction. It may apply after a migraine episode with lingering neurologic symptoms that are still attributed to aura. Check documentation if the chart does not clearly distinguish aura from stroke or another neurologic disorder.
Do not use for
Do not use G43.5 for migraine with cerebral infarction or for transient aura that resolves in the usual timeframe. If the record supports another headache type or neurologic cause, code that condition instead.
Coding tip
Confirm that the provider documented both persistent aura and absence of cerebral infarction before assigning G43.5.