K25Not billable, use a more specific code below

Gastric ulcer

In Diseases of esophagus, stomach and duodenum (K20-K31), chapter 11: Diseases of the Digestive System

9 billable codes under K25: 6 are an MCC, 1 is a CC; 4 map to HCC 78 (Intestinal Obstruction/Perforation).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Includes: conditions that are coded here

  • erosion (acute) of stomach
  • pylorus ulcer (peptic)
  • stomach ulcer (peptic)

Excludes1: not coded here, use a different code

  • acute gastritis (K29.0-)
  • peptic ulcer NOS (K27.-)

Use additional code: add a second code for this, listed after this one

  • code to identify:
  • alcohol abuse and dependence (F10.-)

Also applies, from Diseases of esophagus, stomach and duodenum (K20-K31)

These notes sit on K20-K31 and apply to every code under it, including K25.

Excludes2: not included here, code separately if applicable

  • hiatus hernia (K44.-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

There are no chapter-specific rules for Chapter 11 yet, so the general rules in Section I.B apply.

Read Section I.C.11 (page 58)

K25 MS-DRGs

As the principal diagnosis, the billable codes under K25 group to these 8 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to K25

Notes on these codes point to K25.

  • F54 Code First: gastric ulcer (K25.-)
  • K29.0 Excludes1: erosion (acute) of stomach (K25.-)
  • K92.2 Excludes1: peptic ulcer with hemorrhage (K25-K28)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

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 more about peptic ulcer on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.