Migraine with aura, intractable, without status migrainosus

This code signifies a severe and persistent form of migraine that includes an aura (transient neurological symptoms preceding or accompanying the headache). The "intractable" designation indicates that the migraine is difficult to treat or manage, often resistant to conventional therapies. It specifically excludes cases where the migraine has progressed to status migrainosus, a prolonged and debilitating migraine attack.

Apply this code when documentation clearly states a diagnosis of migraine with aura that is intractable, meaning it is chronic, severe, or resistant to treatment. This code is appropriate when the patient experiences the characteristic visual, sensory, or motor disturbances of an aura, and the migraine attacks are frequent or debilitating despite therapeutic interventions, but do not meet the criteria for status migrainosus.

• Ensure documentation explicitly states "with aura" and "intractable" for accurate code assignment.
• Distinguish from G43.109 (Migraine with aura, not intractable, without status migrainosus) by the presence of intractability.
• Do not use if the patient is experiencing status migrainosus; instead, refer to codes within the G43.11x series that specify status migrainosus.