| Namespace | disease_ontology | Obsolete | false |
| description | 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. |
