ICD10Check
CheckerBrowseOpen

O24.1

⚠ Non-billable (Header)

Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium

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

Also Known As

Insulin-resistant diabetes mellitus in pregnancy, childbirth and the puerperium

📋 Code Instructions

  • • code (for):
  • • from category E11 to further identify any manifestations
  • • injectable non-insulin antidiabetic drugs (Z79.85)
  • • long-term (current) use of insulin (Z79.4)

Child Codes (3)

O24.11Pre-existing type 2 diabetes mellitus, in pregnancyO24.12Pre-existing type 2 diabetes mellitus, in childbirthO24.13Pre-existing type 2 diabetes mellitus, in the puerperium

🧪 Validate Combinations

Add O24.1 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeO24.1
BillableNo — Header code
ParentO24
CategoryPregnancy, childbirth and the puerperium (O00-O9A)
Excludes10 rule(s)
Excludes20 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)