Recommendation	Who to test for monogenic diabetes
1	All patients diagnosed with diabetes before the age of 6 months should be tested for monogenic forms of neonatal diabetes using the large-gene panel (Grade A). All patients diagnosed between 6 and 12 months should be tested for monogenic forms of neonatal diabetes using the large-gene panel (Grade B). No demonstrable yield of monogenic etiology to support reflexive genetic testing patients diagnosed with diabetes between 12-24 months.
2	Women with gestational diabetes and without obesity should be tested for GCK etiology (Grade A)
3	Those with persisting, mild hyperglycemia at any age, in the absence of obesity should be tested for GCK etiology (Grade A)
4	People without obesity under the age of 30 years who are either autoantibody negative and/or have retained C-peptide levels should be tested for monogenic diabetes using a large-gene panel (Grade A)