O10.011
BillablePre-existing essential hypertension complicating pregnancy, first trimester
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A woman with chronic high blood pressure that existed before pregnancy is now pregnant in her first three months. This pre-existing condition requires special monitoring during early pregnancy.
Coding Tips
- •Always verify the trimester is documented in the medical record before assigning this code
- •This code requires a secondary code to identify the type of hypertension (essential vs. secondary)
Code Hierarchy
└O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperium└O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium└O10.01Pre-existing essential hypertension complicating pregnancy└O10.011Pre-existing essential hypertension complicating pregnancy, first trimester
└O10.011Pre-existing essential hypertension complicating pregnancy, first trimester