ICD-10-CM>G00-G99>G40-G47G40-G47Episodic and paroxysmal disordersCodesG40Epilepsy and recurrent seizuresG43MigraineG44Other headache syndromesG45Transient cerebral ischemic attacks and related syndromesG46Vascular syndromes of brain in cerebrovascular diseasesG47Sleep disorders