2026 ICD-10-CM Diagnosis Code K76.6Portal hypertension

ICD-10-CM Codes›K00–K95›K70-K77›K76

ICD-10-CM K76.6
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K76.6 is a billable ICD-10-CM diagnosis code for portal hypertension. 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 Other specified and unspecified liver disease.

Code Identity

ICD-10-CM Code
K76.6
Billable Status
Yes — Valid for Submission
Code Describes
Portal hypertension
Short Description
Portal hypertension
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 CodeK76.6Portal hypertension

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Associated pulmonary arterial hypertension
  • Idiopathic portal hypertension
  • Portal hypertension
  • Portal hypertension caused by antiretroviral drug
  • Portal hypertension due to cystic fibrosis
  • Pulmonary arterial hypertension associated with portal hypertension
  • Secondary portal hypertension
  • Venous hypertension

Tabular List NotesGuidance

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

Use Additional Code

  • code for any associated complications, such as:
  • portal hypertensive gastropathy K31.89

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.

    • Banti's disease or syndrome(with cirrhosis) (with portal hypertension)
    • Fibrosis, fibrotic
      • hepatolienal (portal hypertension)
    • Fibrosis, fibrotic
      • hepatosplenic (portal hypertension)
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • portal (due to chronic liver disease) (idiopathic)
    • Increase, increased
      • venous pressure
        • portal

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

Patient EducationClinical

High Blood Pressure

Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls.

The full article covers:

  • What is blood pressure?
  • How is high blood pressure diagnosed?
  • What are the different types of high blood pressure?
  • Why do I need to worry about high blood pressure?
  • What are the treatments for high blood pressure?

Read the full article at MedlinePlus

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

Convert K76.6 to ICD-9-CMHistory

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

ICD-9-CM
572.3 Portal hypertension
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 K76.6Overview

Is K76.6 (Other diseases of liver) a billable code?

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

What MS-DRG does K76.6 group to?

When portal hypertension 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 K76.6?

Under the General Equivalence Mappings, portal hypertension converts to ICD-9-CM 572.3 (portal hypertension). The mapping is a direct match.

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.