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O24.813

Billable

Other pre-existing diabetes mellitus in pregnancy, third 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 third trimester (months 7-9 of pregnancy).

Coding Tips

  • •Verify trimester assignment based on gestational age documentation
  • •Ensure this is pre-existing diabetes, not newly diagnosed gestational diabetes

Code Hierarchy

└O24Diabetes mellitus in pregnancy, childbirth, and the puerperium└O24.8Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium└O24.81Other pre-existing diabetes mellitus in pregnancy└O24.813Other pre-existing diabetes mellitus in pregnancy, third trimester
└O24.813Other pre-existing diabetes mellitus in pregnancy, third trimester

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