2027 ICD-10-CM Diagnosis Code K25Gastric ulcer

ICD-10-CM Codes›K00–K95›K20-K31›K25

ICD-10-CM K25
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K25 is a non-billable ICD-10-CM category code for gastric ulcer, so it cannot be submitted on claims. Use a more specific code from this category instead, such as K25.0, K25.1, K25.2, and K25.3.

Code Identity

ICD-10-CM Code
K25
Billable Status
No — Non-Billable Category
Code Describes
Gastric ulcer
Short Description
Gastric ulcer
Same as the full description in the CMS dataset.
Chapter
K20-K31
Diseases of esophagus, stomach and duodenum

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK20-K31Diseases of esophagus, stomach and duodenum
CategoryK25Gastric ulcer
This CodeK25Gastric ulcer

Specific Coding for Gastric ulcerOverview

Non-specific codes like K25 require more characters. Use one of these billable codes instead:

  • Use K25.0 for Acute gastric ulcer with hemorrhage

  • Use K25.1 for Acute gastric ulcer with perforation

  • Use K25.2 for Acute gastric ulcer with both hemorrhage and perforation

  • Use K25.3 for Acute gastric ulcer without hemorrhage or perforation

  • Use K25.4 for Chronic or unspecified gastric ulcer with hemorrhage

  • Use K25.5 for Chronic or unspecified gastric ulcer with perforation

  • Use K25.6 for Chronic or unspecified gastric ulcer with both hemorrhage and perforation

  • Use K25.7 for Chronic gastric ulcer without hemorrhage or perforation

  • Use K25.9 for Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K25: its own notes plus those printed at block K20-K31 and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

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

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block K20-K31 Diseases of esophagus, stomach and duodenum applies to 106 codes
From Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

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

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K25, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming K25: they are not reported together with it, unless the two conditions are unrelated.

  • K29.0 Acute gastritis
    erosion (acute) of stomach (K25.-)
  • K92.2 Gastrointestinal hemorrhage, unspecified
    peptic ulcer with hemorrhage (K25-K28)

Code First 1

These codes say to code first a condition named in the note, and K25 is one of the conditions named.

  • F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere
    gastric ulcer (K25.-)

Clinical InformationClinical

  • Stomach Ulcer

    ulceration of the gastric mucosa due to contact with gastric juice. it is often associated with helicobacter pylori infection or consumption of nonsteroidal anti-inflammatory drugs (nsaids).

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.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K25Overview

What is the ICD-10 code for gastric ulcer?

K25 is the ICD-10-CM category for gastric ulcer, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is K25 (Gastric ulcer) a billable code?

No. This is a category header that groups the codes for gastric ulcer, and headers cannot be submitted on claims. Claims for gastric ulcer need a more specific code from this category, such as K25.0, K25.1, and K25.2.

Can K25 be reported with a code from K29.0?

Not as a rule. The Excludes1 note on K25 lists "acute gastritis (K29.0-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does K25 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code to identify: alcohol abuse and dependence (F10.-). The additional code is reported after K25.