I81
I81: Portal vein thrombosis
Billable / specific codeICD-10-CM
I81 is a billable, specific ICD-10-CM code for portal vein thrombosis. It is valid for submission on a claim.
Check I81 with the rest of the claim: free scrubberExcludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Portal (vein) obstruction
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
I81 is named in 17 Medicare coverage policies: 17 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A55717Billing and Coding: Lab: Flow Cytometry
- A56464Billing and Coding: Flow Cytometry
- A56541Billing and Coding: Biomarkers Overview
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
Alphabetic index entries that lead here
- Pseudoangioma
- Block, blocked›portal(vein)
- Embolism›portal(vein)
- Obstruction, obstructed, obstructive›portal(circulation) (vein)
- Thrombosis, thrombotic›portal
- Thrombosis, thrombotic›liver›portal vein
Code history
Unchanged in every release from FY2024 to FY2027.