ICD-10-CM > G00-G99 > G40-G47 > G43 > G43.4 > G43.40 G43.40 Hemiplegic migraine, not intractable Non-Billable/Non-Specific Applicable To Hemiplegic migraine without refractory migraine Codes G43.401Hemiplegic migraine, not intractable, with status migrainosusG43.409Hemiplegic migraine, not intractable, without status migrainosus