G43.519
BillablePersistent migraine aura without cerebral infarction, intractable, without status migrainosus
HCC Category Mapping
RxHCCHCC 166 — Migraine
0.000What This Code Means
A severe, difficult-to-treat migraine with persistent warning signs (aura) that does not cause stroke and does not progress to a prolonged migraine state.
Coding Tips
- •Intractable persistent aura migraines are rare; document failed treatment attempts thoroughly
- •Neuroimaging should be documented to confirm no infarction
Clinical Significance
Persistent migraine aura without cerebral infarction represents prolonged aura symptoms (visual, sensory, or speech disturbances) lasting beyond the typical 60-minute duration, without evidence of brain infarction on imaging. This condition requires careful monitoring as it may progress to migrainous infarction and indicates higher neurological risk. Proper coding distinguishes this from migrainous stroke, impacting treatment decisions and follow-up intensity.
Documentation Requirements
- ✓Documentation of prolonged aura symptoms persisting beyond 60 minutes
- ✓Specific aura type documented (visual, sensory, speech/language, motor)
- ✓Neuroimaging results (MRI preferred) confirming absence of cerebral infarction
- ✓Intractability status clearly stated by provider
- ✓Episode duration documented (under 72 hours or absence of status migrainosus)
- ✓Temporal relationship between aura onset and headache phase
- ✓Prior history of migraine with aura and any progression pattern
Commonly Confused Codes
G43.601-G43.619 (Persistent migraine aura WITH cerebral infarction) — use when imaging confirms actual brain infarction during migraine auraG43.101-G43.119 (Migraine with aura) — standard aura resolves within 60 minutes; persistent aura does notG43.401-G43.419 (Hemiplegic migraine) — involves motor weakness specifically, not just prolonged sensory/visual auraG45.9 (Transient cerebral ischemic attack, unspecified) — TIA is vascular in origin, not migraine-relatedH53.1 (Subjective visual disturbances) — isolated visual symptoms without migraine context
Code Hierarchy
└G43Migraine└G43.5Persistent migraine aura without cerebral infarction└G43.51Persistent migraine aura without cerebral infarction, intractable└G43.519Persistent migraine aura without cerebral infarction, intractable, without status migrainosus
└G43.519Persistent migraine aura without cerebral infarction, intractable, without status migrainosus