ICD10Check
CheckerBrowseOpen

O24.91

⚠ Non-billable (Header)

Unspecified diabetes mellitus in pregnancy

Pregnancy, childbirth and the puerperium (O00-O9A)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

📋 Code Instructions

from O24.9
  • • code (for):
  • • from categories E08, E09 and E13 to further identify any manifestation
  • • injectable non-insulin antidiabetic drugs (Z79.85)
  • • long-term (current) use of insulin (Z79.4)
✅ No additional coding notes for O24.91

Child Codes (4)

O24.911Unspecified diabetes mellitus in pregnancy, first trimesterO24.912Unspecified diabetes mellitus in pregnancy, second trimesterO24.913Unspecified diabetes mellitus in pregnancy, third trimesterO24.919Unspecified diabetes mellitus in pregnancy, unspecified trimester

🧪 Validate Combinations

Add O24.91 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeO24.91
BillableNo — Header code
ParentO24.9
CategoryPregnancy, childbirth and the puerperium (O00-O9A)
Excludes10 rule(s)
Excludes20 note(s)
Child codes4

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)