has material basis in germline mutation in INSR hyperinsulinism due to INSR deficiency https://www.malacards.org/card/hyperinsulinemic_hypoglycemia_familial_5 MEDGEN:355335 OMIM:609968 hyperinsulinemic hypoglycemia, familial, type 5 UMLS:C1864952 hyperinsulinemic hypoglycemia due to insulin receptor deficiency hyperinsulinemic hypoglycemia due to INSR deficiency MONDO:0012381 HHF5 GARD:0017256 Hyperinsulinemic hypoglycemia due to INSR deficiency is a very rare autosomal dominant form of familial hyperinsulinism characterized clinically in the single reported family by postprandial hypoglycemia, fasting hyperinsulinemia, and an elevated serum insulin-to-C peptide ratio, and a variable age of onset. hyperinsulinemic hypoglycemia, familial, 5 MESH:C566494 SCTID:721235003 DOID:0070220 Orphanet:263458 familial hyperinsulinism