2026 ICD-10-CM Diagnosis Code K27.4Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage

ICD-10-CM Codes›K00–K95›K20-K31›K27

ICD-10-CM K27.4
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K27.4 is a billable ICD-10-CM diagnosis code for chronic or unspecified peptic ulcer, site unspecified, with hemorrhage. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 377 through 379. Coders also document this condition as acute gastric ulcer with hemorrhage. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Gastrointestinal hemorrhage.

Code Identity

ICD-10-CM Code
K27.4
Billable Status
Yes — Valid for Submission
Code Describes
Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage
Short Description
Chronic or unsp peptic ulcer, site unsp, with hemorrhage
Parent Code
K27
Peptic ulcer, site unspecified

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK20-K31Diseases of esophagus, stomach and duodenum
CategoryK27Peptic ulcer, site unspecified
This CodeK27.4Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute gastric ulcer with hemorrhage
  • Bleeding stress ulcer of stomach
  • Chronic peptic ulcer with hemorrhage
  • Chronic peptic ulcer with hemorrhage AND obstruction
  • Chronic peptic ulcer with hemorrhage but without obstruction
  • Peptic ulcer with hemorrhage
  • Peptic ulcer with hemorrhage AND obstruction
  • Peptic ulcer with hemorrhage but without obstruction
  • Stress ulcer of stomach

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.

    • Hematemesis
      • with ulcer - code by site under Ulcer, with hemorrhage
    • Hemorrhage, hemorrhagic(concealed)
      • ulcer - code by site under Ulcer, with hemorrhage
    • Melena
      • with ulcer - code by site under Ulcer, with hemorrhage
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • bleeding
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • peptic (site unspecified)
        • with
          • hemorrhage
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • peptic (site unspecified)
        • chronic
          • with
            • hemorrhage

Clinical ClassificationClinical

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

CCSR DIG021
Gastrointestinal hemorrhage
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Gastrointestinal Bleeding

Your digestive or gastrointestinal (GI) tract includes the esophagus, stomach, small intestine, large intestine or colon, rectum, and anus. Bleeding can come from any of these areas. The amount of bleeding can be so small that only a lab test can find it.

Read the full article at MedlinePlus

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

Convert K27.4 to ICD-9-CMHistory

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

ICD-9-CM
533.40 Chr peptic ulcer w hem
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 K27.4Overview

Is K27.4 (Peptic ulcer, site unspecified) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report chronic or unspecified peptic ulcer, site unspecified, with hemorrhage on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K27.4 group to?

When chronic or unspecified peptic ulcer, site unspecified, with hemorrhage is the principal diagnosis on an inpatient stay, it groups to MS-DRG 377, 378, 379, with relative weights from 0.6304 to 1.8280 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K27.4?

Under the General Equivalence Mappings, chronic or unspecified peptic ulcer, site unspecified, with hemorrhage converts to ICD-9-CM 533.40 (chr peptic ulcer w hem). 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.