O16.1
BillableUnspecified maternal hypertension, first trimester
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
High blood pressure in a pregnant woman during the first three months of pregnancy, without a specific underlying cause identified.
Coding Tips
- •This code is for unspecified hypertension; if a specific type (gestational, chronic, etc.) is documented, use a more specific code
- •First trimester is defined as weeks 1-13 of pregnancy
Code Hierarchy
└O16Unspecified maternal hypertension└O16.1Unspecified maternal hypertension, first trimester
└O16.1Unspecified maternal hypertension, first trimester