has material basis in germline mutation in disease shares features of SCN1A genetic developmental and epileptic encephalopathy developmental and epileptic encephalopathy, 6A https://github.com/monarch-initiative/mondo/issues/4521 https://github.com/monarch-initiative/mondo/issues/7693 https://github.com/monarch-initiative/mondo/issues/8274 OMIM:607208 GARD:0026036 Any early infantile epileptic encephalopathy in which the cause of the disease is a mutation in the SCN1A gene. EIEE6 epileptic encephalopathy, early infantile, 6 MONDO:0100079 In Mondo, DEE6A is treated as a distinct class from Dravet syndrome (contrary to OMIM), as not every case of Dravet syndrome is caused by a variation in SCN1A. We recommend describing the phenotype, ie Dravet syndrome, or the genetic eitology, ie SCN1A to represent the concept in question. This is distinct from MONDO:0100135 Dravet syndrome. See https://github.com/monarch-initiative/mondo/issues/745 developmental and epileptic encephalopathy, 6A DEE6A Dravet syndrome