O11

O11: Pre-existing hypertension with pre-eclampsia

Non-billable headerICD-10-CM

O11 is a non-billable header ICD-10-CM code for pre-existing hypertension with pre-eclampsia. It cannot be billed on its own: choose one of the more specific child codes below.

Use additional code

Add a secondary code to capture the detail described below.

code from O10 to identify the type of hypertension

Includes

Conditions this code covers.

conditions in O10 complicated by pre-eclampsia
pre-eclampsia superimposed pre-existing hypertension

Other codes that can never be billed with O11

Their own Excludes1 notes name this code, so the conflict is not listed above.

I10Essential (primary) hypertension
O14Pre-eclampsia

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead O11

6 child codes. Green means billable.

O11.1Pre-existing hypertension with pre-eclampsia, first trimester
O11.2Pre-existing hypertension with pre-eclampsia, second trimester
O11.3Pre-existing hypertension with pre-eclampsia, third trimester
O11.4Pre-existing hypertension with pre-eclampsia, complicating childbirth
O11.5Pre-existing hypertension with pre-eclampsia, complicating the puerperium
O11.9Pre-existing hypertension with pre-eclampsia, unspecified trimester