Monarch Disease Ontology identifier MONDO_0018911 (maturity-onset diabetes of the young) can be described as follows. MODY (maturity-onset diabetes of the young) is a rare, familial, clinically and genetically heterogeneous form of diabetes characterized by young age of onset (generally 10-45 years of age) with maintenance of endogenous insulin production, lack of pancreatic beta-cell autoimmunity, absence of obesity and insulin resistance and extra-pancreatic manifestations in some subtypes. Also known as: MODY, Mason-type diabetes, maturity onset diabetes of the young, maturity-onset diabetes of the young (disease).