O11
Pre-existing hypertension with pre-eclampsia
Non-billableCategory
Coding Guidelines
Includes
- conditions in O10 complicated by pre-eclampsia
- pre-eclampsia superimposed pre-existing hypertension
Use Additional Code
- code from O10 to identify the type of hypertension
Specific Codes (6)
O11.1Billable
Pre-existing hypertension with pre-eclampsia, first trimester
O11.2Billable
Pre-existing hypertension with pre-eclampsia, second trimester
O11.3Billable
Pre-existing hypertension with pre-eclampsia, third trimester
O11.4Billable
Pre-existing hypertension with pre-eclampsia, complicating childbirth
O11.5Billable
Pre-existing hypertension with pre-eclampsia, complicating the puerperium
O11.9Billable
Pre-existing hypertension with pre-eclampsia, unspecified trimester
