INS and diabetes mellitus: It is based only on clinical features (such as age at diagnosis, BMI, HbA1c, family diabetes history and insulin/non‐insulin hypoglycaemic agents use) and has shown good discrimination between monogenic and type 1 (T1DM) or type 2 DM (T2DM) in a European cohort of individuals diagnosed with less than 35 years of age.8, 10