ICD-10 Guide

I81

Name: ICD-10-CM Medical Diagnosis Codes
Creator: Centers for Medicare & Medicaid Services
License: https://www.cms.gov/medicare/coding/icd10

Billable

Portal vein thrombosis

Chapter 9:Diseases of the circulatory system

BILLABLE STATUSYes

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED08/26/2025

Code Description

ICD-10 I81 is a billable code used to indicate a diagnosis of portal vein thrombosis.

Key Diagnostic Point:

Portal vein thrombosis

2025 ICD-10-CM Diagnosis Code I81 - Portal vein thrombosis