I81 vs I82.0
I81 (Portal vein thrombosis) compared with I82.0 (Budd-Chiari syndrome), 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. I81 carries an Excludes2 note covering I82.0: “hepatic vein thrombosis (I82.0)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. I82.0 carries an Excludes2 note covering I81: “portal (I81)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| I81Portal vein thrombosis | I82.0Budd-Chiari syndrome | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Portal vein thrombosis is a billable ICD-10-CM diagnosis code (I81). | Budd-Chiari syndrome is a billable ICD-10-CM diagnosis code (I82.0). |
| Includes | Portal (vein) obstruction | Hepatic vein thrombosis |
| Code first | — | venous embolism and thrombosis complicating: abortion, ectopic or molar pregnancy (O00-O07, O08.7) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources