Congenital Disorder of Glycosylation, Type Iid, also known as congenital disorder of glycosylation type iid, is related to congenital disorder of glycosylation, type in and hydrocephalus. An important gene associated with Congenital Disorder of Glycosylation, Type Iid is B4GALT1 (Beta-1,4-Galactosyltransferase 1), and among its related pathways/superpathways are Infectious disease and Metabolism of proteins. Affiliated tissues include liver and skin, and related phenotypes are elevated circulating creatine kinase concentration and infantile muscular hypotonia