Type 1 Diabetes (due to β-cell destruction, leading to complete absence of insulin), classifiable in:
i. Immune-mediated
ii. Idiopathic
Type 2 Diabetes (due to a double mechanism such as insulin deficiency plus insulin-resistance)
Other specific types
i. Genetic defects of β-cell function
ii. Genetic defects in insulin action
iii. Diseases of exocrine pancreas
iv. Endocrinopathies
v. Drug or chemical induced forms
vi. Infections
vii. Uncommon forms of immune-mediated diabetes
viii. Other genetic syndromes sometimes associates with diabetes
Gestational diabetes mellitus
Table 1: Classification of Diabetes Mellitus – Adapted from the American Diabetes Association 2013 Position Statement.