Term Name:	developmental and epileptic encephalopathy 80
Synonyms:	DEE80, early infantile epileptic encephalopathy 80, glycosylphosphatidylinositol biosynthesis defect 20, GPIBD20
Definition:	A developmental and epileptic encephalopathy characterized by onset in the first year of life of refractory seizures, severe global developmental delay, and defective synthesis of glycosylphosphatidylinositol that has_material_basis_in homozygous or compound heterozygous mutation in the PIGB gene on chromosome 15q21.3.
Ontology:	Human Disease [DOID:0112216]   ( DOID:0112216 )