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ICD-10-CM 2027 diagnosis code

I82.0Budd-Chiari syndrome

✓ Billable / specificMCC — major complication/comorbidity

I82.0 is a valid, billable ICD-10-CM code for budd-chiari syndrome. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Budd-Chiari syndrome, ICD-10 code for Liver venous thrombosis.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I82.0

I82.0 is the ICD-10-CM diagnosis code for Budd-Chiari syndrome. It belongs to category I82 (other venous embolism and thrombosis), block I80-I89 (diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I82 (other venous embolism and thrombosis), I82.0 is specifically for Budd-Chiari syndrome. Related codes cover thrombophlebitis migrans (I82.1), embolism and thrombosis of vena cava and other thoracic veins (I82.2), embolism and thrombosis of renal vein (I82.3), acute embolism and thrombosis of deep veins of lower extremity (I82.4), chronic embolism and thrombosis of deep veins of lower extremity (I82.5), acute embolism and thrombosis of veins of upper extremity (I82.6), chronic embolism and thrombosis of veins of upper extremity (I82.7), embolism and thrombosis of other specified veins (I82.8) and 4 more.

Code first venous embolism and thrombosis complicating: abortion, ectopic or molar pregnancy (O00-O07, O08.7) and pregnancy, childbirth and the puerperium (O22.-, O87.-).

As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC, relative weight 1.8219), DRG 442 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC, relative weight 0.9602) and DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC, relative weight 0.6885), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 453.0 (Budd-chiari syndrome).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Hepatic vein thrombosis

Notes that apply from higher levels

Instructions written at a parent level also apply to I82.0.

› From I82 Other venous embolism and thrombosis
Excludes2
  • venous embolism and thrombosis (of):
  • cerebral (I63.6, I67.6)
  • coronary (I21-I25)
  • intracranial and intraspinal, septic or NOS (G08)
  • intracranial, nonpyogenic (I67.6)
  • intraspinal, nonpyogenic (G95.1)
  • mesenteric (K55.0-)
  • portal (I81)
  • pulmonary (I26.-)
Code first
  • venous embolism and thrombosis complicating:
  • abortion, ectopic or molar pregnancy (O00-O07, O08.7)
  • pregnancy, childbirth and the puerperium (O22.-, O87.-)

Broader instructions also apply from Chapter 9: Diseases of the circulatory system.

Alphabetic index entries

9 entries

Terms in the official ICD-10-CM index that lead to I82.0.

Codes whose notes reference I82.0

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 453.0Budd-chiari syndromeexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about I82.0

Is I82.0 billable?

Yes. I82.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I82.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I82.0 as a principal diagnosis.

Is I82.0 a CC or MCC?

I82.0 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does I82.0 group to?

I82.0 is used in the MS-DRG v44.0 logic for MS-DRG 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC), MS-DRG 442 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC) and MS-DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for I82.0?

The CMS General Equivalence Mappings map I82.0 to ICD-9-CM 453.0.