G43.9 - Migraine, unspecified
G43.91 - Migraine, unspecified, intractable
InclusionTerm:
-Migraine, unspecified, with refractory migraine
G43.911 - Migraine, unspecified, intractable, with status migrainosus
G43.919 - Migraine, unspecified, intractable, without status migrainosus