Pre-existing hypertension with pre-eclampsia (O11)
Browse all the diagnosis codes used for pre-existing hypertension with pre-eclampsia (o11). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.
Instructional Notations
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- conditions in O10
- pre-eclampsia superimposed pre-existing hypertension
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code from O10
Pregnancy, childbirth and the puerperium (O00-O9A)
Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
O11 Pre-existing hypertension with pre-eclampsia
- O11.1 Pre-existing hypertension with pre-eclampsia, first trimester
- O11.2 Pre-existing hypertension with pre-eclampsia, second trimester
- O11.3 Pre-existing hypertension with pre-eclampsia, third trimester
- O11.4 Pre-existing hypertension with pre-eclampsia, complicating childbirth
- O11.5 Pre-existing hypertension with pre-eclampsia, complicating the puerperium
- O11.9 Pre-existing hypertension with pre-eclampsia, unspecified trimester
Pre-existing hypertension with pre-eclampsia (O11)