I11 vs O11
I11 (Hypertensive heart disease) compared with O11 (Pre-existing hypertension with pre-eclampsia), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. I11 carries an Excludes2 note covering O11: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| I11Hypertensive heart disease | O11Pre-existing hypertension with pre-eclampsia | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Hypertensive heart disease is a non-billable ICD-10-CM category code (I11). | Pre-existing hypertension with pre-eclampsia is a non-billable ICD-10-CM category code (O11). |
| Includes | any condition in I50.- or I51.4-I51.7, I51.89, I51.9 due to hypertension | conditions in O10 complicated by pre-eclampsia pre-eclampsia superimposed pre-existing hypertension |
| Use additional code | code to identify: exposure to environmental tobacco smoke (Z77.22) history of tobacco dependence (Z87.891) | code from O10 to identify the type of hypertension |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources