ICD-11 definition : Isolated nonketotic hyperglycinemia is an inborn disorder of glycine metabolism which
onset is generally neonatal with coma, severe hypotonia, myoclonic seizures, and microcephaly,
usually progressing to severe intellectual deficit and tetrapyramidal syndrome.;
Isolated nonketotic hyperglycinemia is an inborn disorder of glycine metabolism which
onset is generally neonatal with coma, severe hypotonia, myoclonic seizures, and microcephaly,
usually progressing to severe intellectual deficit and tetrapyramidal syndrome.