Category O11
Pre-existing hypertension with pre-eclampsia
Clinical Classification Guidelines
Specific Diagnosis Codes
Pre-existing hypertension with pre-eclampsia, first trimester
O11.1
Pre-existing hypertension with pre-eclampsia, second trimester
O11.2
Pre-existing hypertension with pre-eclampsia, third trimester
O11.3
Pre-existing hypertension with pre-eclampsia, complicating childbirth
O11.4
Pre-existing hypertension with pre-eclampsia, complicating the puerperium
O11.5
Pre-existing hypertension with pre-eclampsia, unspecified trimester
O11.9