I13 vs O13
I13 (Hypertensive heart and chronic kidney disease) compared with O13 (Gestational [pregnancy-induced] hypertension without significant proteinuria), 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. I13 carries an Excludes2 note covering O13: “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
| I13Hypertensive heart and chronic kidney disease | O13Gestational [pregnancy-induced] hypertension without significant proteinuria | |
|---|---|---|
| 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 and chronic kidney disease is a non-billable ICD-10-CM category code (I13). | Gestational [pregnancy-induced] hypertension without significant proteinuria is a non-billable ICD-10-CM category code (O13). |
| Includes | any condition in I11.- with any condition in I12.- cardiorenal disease cardiovascular renal disease | gestational hypertension NOS transient hypertension of pregnancy |
| Use additional code | code to identify: exposure to environmental tobacco smoke (Z77.22) history of tobacco dependence (Z87.891) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources