2027 ICD-10-CM Diagnosis Code K25.3Acute gastric ulcer without hemorrhage or perforation

ICD-10-CM Codes›K00–K95›K20-K31›K25

ICD-10-CM K25.3
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K25.3 is a billable ICD-10-CM diagnosis code for acute gastric ulcer without hemorrhage or perforation. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 380 through 384. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 75 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Gastroduodenal ulcer.

Code Identity

ICD-10-CM Code
K25.3
Billable Status
Yes — Valid for Submission
Code Describes
Acute gastric ulcer without hemorrhage or perforation
Short Description
Acute gastric ulcer without hemorrhage or perforation
Same as the full description in the CMS dataset.
Parent Code
Gastric ulcer

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK20-K31Diseases of esophagus, stomach and duodenum
CategoryK25Gastric ulcer
This CodeK25.3Acute gastric ulcer without hemorrhage or perforation

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute drug-induced ulcer of stomach
  • Acute gastric erosion associated with drug ingestion
  • Acute gastric mucosal erosion
  • Acute gastric ulcer
  • Acute gastric ulcer caused by Cytomegalovirus
  • Acute gastric ulcer with obstruction
  • Acute gastric ulcer without hemorrhage AND without perforation
  • Acute gastric ulcer without hemorrhage AND without perforation but with obstruction
  • Acute gastric ulcer without hemorrhage, without perforation AND without obstruction
  • Acute peptic ulcer without hemorrhage AND without perforation
  • Acute peptic ulcer without hemorrhage AND without perforation but with obstruction
  • Acute pyloric ulcer caused by Helicobacter pylori
  • Acute ulcer of pyloric antrum
  • Antral ulcer
  • Curling's ulcer of stomach
  • Curling's ulcers
  • Cushing ulcer
  • Cushing ulcer of stomach
  • Gastric erosion
  • Gastric ulcer caused by bacterium
  • Gastric ulcer caused by drug
  • Gastric ulcer caused by Helicobacter pylori
  • Gastric ulcer without hemorrhage AND without perforation but with obstruction
  • Gastric ulcer without hemorrhage, without perforation AND without obstruction
  • Helicobacter-associated pyloric ulcer
  • Peptic ulcer without hemorrhage AND without perforation but with obstruction
  • Pyloric ulcer
  • Stress ulcer of stomach
  • Ulcerative cytomegalovirus lesion

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K25.3: its own notes plus those printed at K25, 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.

From K25 Gastric ulcer applies to 9 codes
  • 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.

From K25 Gastric ulcer applies to 9 codes

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.

From K25 Gastric ulcer applies to 9 codes
  • 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 K25.3, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming K25.3: they are not reported together with it, unless the two conditions are unrelated.

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

Code First 1

These codes say to code first a condition named in the note, and K25.3 is one of the conditions named.

  • F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere
    gastric ulcer (K25.-) names K25.-, which includes this code

Index to Diseases and InjuriesGuidance

Clinical ClassificationClinical

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

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

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.

Convert K25.3 to ICD-9-CMHistory

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

ICD-9-CM
531.30 Acute stomach 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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K25.3Overview

What is the ICD-10 code for acute gastric ulcer without hemorrhage or perforation?

The ICD-10-CM code for acute gastric ulcer without hemorrhage or perforation is K25.3 (sometimes written as K253). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K25.3 (Gastric ulcer) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acute gastric ulcer without hemorrhage or perforation on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K25.3 group to?

When acute gastric ulcer without hemorrhage or perforation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 381, 380, 383, 384, 382, with relative weights from 0.7283 to 1.9243 depending on complications. Higher weights mean higher Medicare reimbursement.

Is K25.3 a CC or MCC?

CMS lists K25.3 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 75 closely related codes in its exclusion list.

Can K25.3 be reported with a code from K29.0?

Not as a rule. The Excludes1 note at K25, which applies to K25.3, 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).