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O24.812

Billable

Other pre-existing diabetes mellitus in pregnancy, second trimester

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Diabetes that existed before pregnancy (other types like Type 1 or Type 2) during the second trimester (months 4-6 of pregnancy).

Coding Tips

  • Confirm the trimester timing based on last menstrual period or ultrasound dating
  • Link to the pre-existing diabetes diagnosis code

Code Hierarchy

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