ICD-10-CM > G00-G99 > G40-G47 > G43 > G43.8 > G43.81 G43.81 Other migraine, intractable Non-Billable/Non-Specific Applicable To Other migraine, with refractory migraine Codes G43.811Other migraine, intractable, with status migrainosusG43.819Other migraine, intractable, without status migrainosus