2026 ICD-10-CM Diagnosis Code K28.7Chronic gastrojejunal ulcer without hemorrhage or perforation

ICD-10-CM Codes›K00–K95›K20-K31›K28

ICD-10-CM K28.7
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K28.7 is a billable ICD-10-CM diagnosis code for chronic gastrojejunal ulcer without hemorrhage or perforation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 380 through 382. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Gastroduodenal ulcer.

Code Identity

ICD-10-CM Code
K28.7
Billable Status
Yes — Valid for Submission
Code Describes
Chronic gastrojejunal ulcer without hemorrhage or perforation
Short Description
Chronic gastrojejunal ulcer w/o hemorrhage or perforation
Parent Code
K28
Gastrojejunal ulcer

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK20-K31Diseases of esophagus, stomach and duodenum
CategoryK28Gastrojejunal ulcer
This CodeK28.7Chronic gastrojejunal ulcer without hemorrhage or perforation

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chronic gastric ulcer with obstruction
  • Chronic gastric ulcer without hemorrhage AND without perforation
  • Chronic gastric ulcer without hemorrhage AND without perforation but with obstruction
  • Chronic gastrojejunal ulcer
  • Chronic gastrojejunal ulcer with obstruction
  • Chronic gastrojejunal ulcer without hemorrhage AND without perforation
  • Chronic gastrojejunal ulcer without hemorrhage AND without perforation but with obstruction
  • Chronic gastrojejunal ulcer without hemorrhage, without perforation AND without obstruction
  • Chronic peptic ulcer without hemorrhage AND without perforation
  • Chronic peptic ulcer without hemorrhage AND without perforation but with obstruction
  • Gastric ulcer without hemorrhage AND without perforation but with obstruction
  • Gastrojejunal ulcer without hemorrhage AND without perforation
  • Gastrojejunal ulcer without hemorrhage AND without perforation but with obstruction
  • Gastrojejunal ulcer without hemorrhage, without perforation AND without obstruction
  • Peptic ulcer without hemorrhage AND without perforation but with obstruction

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.

    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • gastrojejunal (peptic)
        • chronic

Clinical ClassificationClinical

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

CCSR DIG005
Gastroduodenal ulcer
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Peptic Ulcer

A peptic ulcer is a sore in the lining of your stomach or your duodenum, the first part of your small intestine. A burning stomach pain is the most common symptom. The pain:

Read the full article at MedlinePlus

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

Convert K28.7 to ICD-9-CMHistory

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

ICD-9-CM
534.70 Chr marginal ulcer 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 K28.7Overview

Is K28.7 (Gastrojejunal ulcer) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report chronic gastrojejunal ulcer without hemorrhage or perforation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K28.7 group to?

When chronic gastrojejunal ulcer without hemorrhage or perforation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 380, 381, 382, with relative weights from 0.8006 to 1.9622 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K28.7?

Under the General Equivalence Mappings, chronic gastrojejunal ulcer without hemorrhage or perforation converts to ICD-9-CM 534.70 (chr marginal ulcer 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.