has material basis in germline mutation in GLUD1 hyperinsulinism-hyperammonemia syndrome https://github.com/monarch-initiative/mondo/issues/4985 https://rarediseases.info.nih.gov/diseases/9931/hyperinsulinism-hyperammonemia-syndrome https://www.malacards.org/card/hyperinsulinemic_hypoglycemia_familial_6 GARD:0009931 OMIM:606762 hyperinsulinism-hyperammonemia syndrome hyperinsulinism hyperammonemia syndrome glutamate dehydrogenase 1 hyperinsulinism DOID:0070217 hyperinsulinemic hypoglycemia, familial, type 6 Hyperinsulinism-hyperammonemia syndrome (HIHA) is a frequent form of diazoxide-sensitive diffuse hyperinsulinism, characterized by an excessive/ uncontrolled insulin secretion (inappropriate for the level of glycemia), asymptomatic hyperammonemia and recurrent episodes of profound hypoglycemia induced by fasting and protein rich meals, requiring rapid and intensive treatment to prevent neurological sequelae. Epilepsy and cognitive deficit that are unrelated to hypoglycemia may also occur. MONDO:0011717 MEDGEN:376153 GLUD1 hyperinsulinism hyperinsulinemic hypoglycemia, familial, 6 hi/HA syndrome UMLS:C1847555 HHF6 GDH hyperinsulinism hyperinsulinemic hypoglycemia familial 6 MESH:C538375 hyperinsulinism/hyperammonemia syndrome Orphanet:35878 NCIT:C131832 HA/hi syndrome diazoxide-sensitive diffuse hyperinsulinism urea cycle disorder or inherited hyperammonemia