G43.111

HCC Category Mapping

What This Code Means

This is a severe migraine headache with visual or sensory warning signs (aura) that does not respond to standard treatment and has progressed into a prolonged migraine state lasting more than 72 hours. The patient experiences persistent migraine symptoms despite medication attempts.

Coding Tips

• •Verify documentation clearly states both 'intractable' (drug-resistant) and 'status migrainosus' (prolonged migraine state) before assigning this code, as both conditions must be present
• •Status migrainosus is a serious complication requiring hospitalization; ensure the clinical record supports the severity and duration of symptoms to justify this high-specificity code

Clinical Significance

Migraine with aura, intractable, with status migrainosus is the most severe presentation of classic migraine — drug-resistant migraines with aura that have progressed to a continuous state exceeding 72 hours. This clinical scenario often requires hospitalization with aggressive IV treatment protocols. The combination of drug resistance and prolonged duration indicates a complex headache patient requiring specialist management.

Documentation Requirements

• ✓Confirmed migraine with aura diagnosis with aura description
• ✓Documentation of intractability with failed preventive and acute medication trials
• ✓Status migrainosus documented with duration exceeding 72 hours
• ✓Hospitalization or emergency department documentation
• ✓Complete medication history showing drug resistance
• ✓Treatment plan including interventional options (nerve blocks, IV protocols)

Commonly Confused Codes