O11 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Pre-existing hypertension with pre-eclampsia.
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
Codes
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
Versions
2025
No changes
2024
Code changed
Includes
conditions in Ol0 complicated by pre-eclampsiapre-eclampsia superimposed pre-existing hypertension
- conditions in O10 complicated by pre-eclampsia
- pre-eclampsia superimposed pre-existing hypertension
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code