G43.119
BillableMigraine with aura, intractable, without status migrainosus
HCC Category Mapping
RxHCCHCC 166 — Migraine
0.000What This Code Means
A severe, difficult-to-treat migraine with warning signs (aura) that does not progress to a prolonged migraine state.
Coding Tips
- •Intractable migraines with aura require documentation of failed treatment attempts
- •The '9' indicates absence of status migrainosus
Clinical Significance
Migraine with aura, intractable, without status migrainosus captures patients with drug-resistant classic migraines that do not extend beyond 72 hours. These patients experience frequent, difficult-to-treat migraines preceded by aura and have failed standard preventive and acute treatments. They are candidates for advanced migraine therapies including CGRP inhibitors, neuromodulation, and Botox injections.
Documentation Requirements
- ✓Confirmed migraine with aura diagnosis with aura type description
- ✓Documentation of intractability with list of failed medications
- ✓Absence of status migrainosus (episodes not exceeding 72 hours)
- ✓Migraine frequency and headache days per month
- ✓Functional impact and disability assessment (MIDAS score or similar)
- ✓Current and planned treatment approaches
Commonly Confused Codes
G43.109 — Migraine with aura, NOT intractable; responds to treatmentG43.111 — Migraine with aura, intractable, WITH status migrainosusG43.019 — Migraine WITHOUT aura, intractable; no visual/sensory prodromeG43.719 — Chronic migraine without aura, intractable; different pattern classificationG44.41 — Drug-induced headache; medication overuse mimicking intractable migraine
Code Hierarchy
└G43Migraine└G43.1Migraine with aura└G43.11Migraine with aura, intractable└G43.119Migraine with aura, intractable, without status migrainosus
└G43.119Migraine with aura, intractable, without status migrainosus