ICD-10-CM
O24.81: Other pre-existing diabetes mellitus in pregnancy
A header, not a billable code. Bill a more specific code under it.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
- Kind
- Header. Not a billable code.
- Category
- O24
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Codes under O24.81
A header groups codes and is not billed. A billable code is one you can report.
- O24.811Other pre-existing diabetes mellitus in pregnancy, first trimesterBillable
- O24.812Other pre-existing diabetes mellitus in pregnancy, second trimesterBillable
- O24.813Other pre-existing diabetes mellitus in pregnancy, third trimesterBillable
- O24.819Other pre-existing diabetes mellitus in pregnancy, unspecified trimesterBillable
It's the public CDC file. Check the current ICD-10-CM guidelines before you code.
Use additional code
The CDC tabular list says to add the code named here after this one when it applies.
From O24.8. A note on a category applies to every code under it.