Question

while pre-existing undiagnosed diabetes, diagnosed during pregnancy is known as type 2 dm or diabetes in pregnancy."

Answer 1

Diabetes in the first trimester is more likely to be type 2 DM that was present but undiagnosed before pregnancy. ... Occasionally, the diagnosis of GDM will identify women with type 1 diabetes mellitus6. Indeed, the incidence of type 1 DM is greater in pregnancy