O24.011
BillablePre-existing type 1 diabetes mellitus, in pregnancy, first trimester
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A patient with type 1 diabetes that existed before pregnancy and is being managed during the first three months of pregnancy.
Coding Tips
- •This code indicates pre-existing diabetes, not gestational diabetes; ensure documentation confirms diabetes diagnosis predates pregnancy
- •Document glycemic control status and any complications; may require additional codes for complications like diabetic nephropathy or retinopathy
Code Hierarchy
└O24Diabetes mellitus in pregnancy, childbirth, and the puerperium└O24.0Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium└O24.01Pre-existing type 1 diabetes mellitus, in pregnancy└O24.011Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester
└O24.011Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester