2026 ICD-10-CM Diagnosis Code K76.4Peliosis hepatis

ICD-10-CM Codes›K00–K95›K70-K77›K76

ICD-10-CM K76.4
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K76.4 is a billable ICD-10-CM diagnosis code for peliosis hepatis. 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. Coders also document this condition as idiopathic peliosis hepatis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified liver disease.

Code Identity

ICD-10-CM Code
K76.4
Billable Status
Yes — Valid for Submission
Code Describes
Peliosis hepatis
Short Description
Peliosis hepatis
Same as the full description in the CMS dataset.
Parent Code
K76
Other diseases of liver

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK70-K77Diseases of liver
CategoryK76Other diseases of liver
This CodeK76.4Peliosis hepatis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Idiopathic peliosis hepatis
  • Liver cyst
  • Peliosis hepatis

Tabular List NotesGuidance

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

Inclusion Terms

  • Hepatic angiomatosis

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.

    • Angiomatosis
      • liver
    • Peliosis(rheumatica)
      • hepatis

Clinical ClassificationClinical

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

CCSR DIG019
Other specified and unspecified liver disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Peliosis Hepatis

    a vascular disease of the liver characterized by the occurrence of multiple blood-filled cysts or cavities. the cysts are lined with endothelial cells; the cavities lined with hepatic parenchymal cells (hepatocytes). peliosis hepatis has been associated with use of anabolic steroids (anabolic agents) and certain drugs.

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 K76.4 to ICD-9-CMHistory

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

ICD-9-CM
573.3 Hepatitis NOS
Approximate The match is approximate rather than exact.

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 K76.4Overview

Is K76.4 (Other diseases of liver) a billable code?

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

What MS-DRG does K76.4 group to?

When peliosis hepatis 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 K76.4?

Under the General Equivalence Mappings, peliosis hepatis converts to ICD-9-CM 573.3 (hepatitis NOS). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.