O99.323
BillableDrug use complicating pregnancy, third trimester
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Drug use during the last three months of pregnancy (third trimester) that causes complications for the mother or fetus.
Coding Tips
- •Verify the trimester is explicitly documented; third trimester is weeks 28+ of pregnancy
- •Document any neonatal withdrawal symptoms or other complications at delivery for comprehensive coding
Code Hierarchy
└O99Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium└O99.3Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperium└O99.32Drug use complicating pregnancy, childbirth, and the puerperium└O99.323Drug use complicating pregnancy, third trimester
└O99.323Drug use complicating pregnancy, third trimester