O99.331
BillableSmoking (tobacco) complicating pregnancy, first trimester
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Tobacco smoking during the first three months of pregnancy (first trimester) that causes complications for the mother or fetus.
Coding Tips
- •Confirm first trimester timing is documented before assigning this code
- •Document smoking quantity and any documented effects on early fetal development
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└O99.33Tobacco use disorder complicating pregnancy, childbirth, and the puerperium└O99.331Smoking (tobacco) complicating pregnancy, first trimester
└O99.331Smoking (tobacco) complicating pregnancy, first trimester