G43.611

HCC Category Mapping

What This Code Means

This is a severe, ongoing migraine headache with visual or sensory warning signs (aura) that has caused a stroke in the brain, and the migraine symptoms are not responding to treatment. The patient is experiencing continuous migraine activity lasting more than 72 hours.

Coding Tips

• •This code requires documentation of both the persistent aura with infarction AND the intractable status with status migrainosus - ensure the clinical record supports all components before assigning
• •Verify that imaging studies (CT or MRI) confirm cerebral infarction and that the provider has documented the migraine as the underlying cause; this is a serious complication requiring careful documentation review

Clinical Significance

Persistent migraine aura with cerebral infarction (migrainous infarction) is a serious neurological emergency where migraine aura symptoms are accompanied by confirmed ischemic brain infarction on neuroimaging. This represents one of the most severe migraine complications and demands urgent stroke protocol evaluation and intervention. Accurate coding is essential for capturing disease severity and ensuring appropriate risk adjustment across multiple models.

Documentation Requirements

• ✓Neuroimaging (MRI with diffusion-weighted imaging preferred) confirming cerebral infarction
• ✓Documentation of migraine aura symptoms that persisted and coincided with the infarction
• ✓Temporal relationship establishing aura preceded or accompanied the infarction event
• ✓Exclusion of other causes of cerebral infarction (cardioembolism, large-vessel atherosclerosis)
• ✓Intractability status documented by provider
• ✓Status migrainosus with documented duration >72 hours
• ✓Additional code for the specific cerebral infarction territory (I63.x) should be reported
• ✓Neurological deficit assessment and residual symptoms

Commonly Confused Codes