2026 ICD-10-CM Diagnosis Code I82.0Budd-Chiari syndrome

ICD-10-CM Codes›I00–I99›I80-I89›I82

ICD-10-CM I82.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I82.0 is a billable ICD-10-CM diagnosis code for Budd-Chiari syndrome. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 441 through 443. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Acute phlebitis; thrombophlebitis and thromboembolism.

Code Identity

ICD-10-CM Code
I82.0
Billable Status
Yes — Valid for Submission
Code Describes
Budd-Chiari syndrome
Short Description
Budd-Chiari syndrome
Same as the full description in the CMS dataset.
Parent Code
I82
Other venous embolism and thrombosis

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
CategoryI82Other venous embolism and thrombosis
This CodeI82.0Budd-Chiari syndrome

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Budd-Chiari syndrome
  • Hepatic vein thrombosis
  • Obstruction of visceral vein
  • Visceral venous thrombosis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Hepatic vein thrombosis

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Block, blocked
      • hepatic vein
    • Budd-Chiari syndrome(hepatic vein thrombosis)
    • Chiari's
      • disease or syndrome (hepatic vein thrombosis)
    • Disease, diseased
      • Chiari's (hepatic vein thrombosis)
    • Embolism(multiple) (paradoxical)
      • hepatic (vein)
    • Syndrome
      • Budd-Chiari
    • Syndrome
      • Chiari's (hepatic vein thrombosis)
    • Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
      • hepatic (vein)
    • Thrombosis, thrombotic(bland) (multiple) (progressive) (silent) (vessel)
      • liver (venous)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR033
Acute phlebitis; thrombophlebitis and thromboembolism
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Liver Diseases

Your liver is the largest organ inside your body. It helps your body digest food, store energy, and remove poisons.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert I82.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
453.0 Budd-chiari syndrome
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I82.0Overview

Is I82.0 (Other venous embolism and thrombosis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report Budd-Chiari syndrome on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does I82.0 group to?

When Budd-Chiari syndrome is the principal diagnosis on an inpatient stay, it groups to MS-DRG 441, 442, 443, with relative weights from 0.6997 to 1.7947 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I82.0?

Under the General Equivalence Mappings, Budd-Chiari syndrome converts to ICD-9-CM 453.0 (budd-chiari syndrome). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.