2027 ICD-10-CM Diagnosis Code K25.9Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation
ICD-10-CM Codes›K00–K95›K20-K31›K25
- Billable — Valid for Submission
- Not Chronic
K25.9 is a billable ICD-10-CM diagnosis code for gastric ulcer, unspecified as acute or chronic, 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Gastroduodenal ulcer.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Anastomotic ulcer of stomach caused by drug
- Anastomotic ulcer of stomach caused by Helicobacter pylori
- Antral ulcer
- Cancerous ulcer
- Combined gastric AND duodenal ulcer
- Esophageal erosions
- Esophagogastric ulcer
- Gastric erosion
- Gastric ulcer
- Gastric ulcer caused by alcohol
- Gastric ulcer caused by bacterium
- Gastric ulcer caused by chemical
- Gastric ulcer caused by cytomegalovirus
- Gastric ulcer caused by drug
- Gastric ulcer caused by fungus
- Gastric ulcer caused by Helicobacter pylori
- Gastric ulcer caused by Helicobacter pylori and non-steroidal anti-inflammatory agent
- Gastric ulcer caused by ionizing radiation
- Gastric ulcer caused by non-steroidal anti-inflammatory drug in therapeutic use
- Gastric ulcer caused by virus
- Gastric ulcer due to Crohn disease
- Gastric ulcer due to parasitic infection
- Gastric ulcer due to sarcoidosis
- Gastric ulcer due to vasculitis
- Gastric ulcer due to Zollinger-Ellison syndrome
- Gastric ulcer induced by platelet aggregation inhibitor
- Gastric ulcer without hemorrhage AND without perforation
- Gastric ulcer without hemorrhage AND without perforation but with obstruction
- Gastric ulcer without hemorrhage, without perforation AND without obstruction
- Gastroduodenal disorder
- Gastroesophageal erosion
- Helicobacter-associated pyloric ulcer
- Infection causing ulcer of stomach
- Multiple gastric erosions
- Multiple gastric ulcers
- Peptic ulcer without hemorrhage AND without perforation but with obstruction
- Prepyloric ulcer
- Pyloric ulcer
- Ulcer of stomach due to eosinophilic gastritis
- Ulcer of stomach due to immunoglobulin A vasculitis
- Ulcer of stomach due to lymphocytic gastritis
- Ulcerative cytomegalovirus lesion
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K25.9: 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.
- 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.
- hiatus hernia (K44.-)
- 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.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name K25.9, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming K25.9: they are not reported together with it, unless the two conditions are unrelated.
Code First 1
These codes say to code first a condition named in the note, and K25.9 is one of the conditions named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 K25.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K25.9Overview
Is K25.9 (Gastric ulcer) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K25.9 group to?
When gastric ulcer, unspecified as acute or chronic, 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.
Can K25.9 be reported with a code from K29.0?
Not as a rule. The Excludes1 note at K25, which applies to K25.9, 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 K25.9 need an additional code?
When the condition applies, yes. The Use Additional Code note at K25, which applies to K25.9, reads: code to identify: alcohol abuse and dependence (F10.-). The additional code is reported after K25.9.
What is the ICD-9 equivalent of K25.9?
Under the General Equivalence Mappings, gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation converts to ICD-9-CM 531.90 (stomach ulcer NOS). The mapping is approximate, so confirm the match fits the documentation.
