I25 vs I74
I25 (Chronic ischemic heart disease) compared with I74 (Arterial embolism and thrombosis), 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. I74 carries an Excludes2 note covering I25: “coronary embolism and thrombosis (I21-I25)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| I25Chronic ischemic heart disease | I74Arterial embolism and thrombosis | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Chronic ischemic heart disease is a non-billable ICD-10-CM category code (I25). | Arterial embolism and thrombosis is a non-billable ICD-10-CM category code (I74). |
| Includes | — | embolic infarction embolic occlusion thrombotic infarction thrombotic occlusion |
| Use additional code | code to identify: chronic total occlusion of coronary artery (I25.82) exposure to environmental tobacco smoke (Z77.22) | — |
| Code first | — | embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) embolism and thrombosis complicating pregnancy, childbirth and the puerperium (O88.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources