familial hemiplegic migraine true 2011-11-08T02:54:32Z Familial hemiplegic migraine is a subtype of migraine with aura in which focal weakness with or without speech disturbance, visual symptoms and paraesthesia develop prior to the onset of headache. Confusion and, in rare severe cases, coma may accompany weakness. GARD:10975 ICD10CM:G43.8 UMLS_CUI:C0477373 ICD9CM:346.8 disease_ontology lschriml A migraine with aura that is characterized by temporary numbness or weakness, often affecting one side of the body (hemiparesis). Additional features of an aura can include difficulty with speech, confusion, and drowsiness. Xref MGI. DOID:0060178 ORDO:569 migraine associated disorder