Gastric ulcer (K25) ICD-10-CM
The K25 code range covers gastric ulcer with 10 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- erosion (acute) of stomach
- pylorus ulcer (peptic)
- stomach ulcer (peptic)
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code to identify:
- alcohol abuse and dependence F10
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the K25 Range 10 codes · 9 billable
- K25 Gastric ulcerNon-billable
- K25.0 Acute gastric ulcer with hemorrhage
- K25.1 Acute gastric ulcer with perforation
- K25.2 Acute gastric ulcer with both hemorrhage and perforation
- K25.3 Acute gastric ulcer without hemorrhage or perforation
- K25.4 Chronic or unspecified gastric ulcer with hemorrhage
- K25.5 Chronic or unspecified gastric ulcer with perforation
- K25.6 Chronic or unspecified gastric ulcer with both hemorrhage and perforation
- K25.7 Chronic gastric ulcer without hemorrhage or perforation
- K25.9 Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation
About the K25 Code Range
ICD-10 code K25 covers various forms of gastric ulcers, which are sores developing on the stomach lining. These codes help classify ulcers by their severity—acute or chronic—and by complications such as bleeding (hemorrhage), hole formation (perforation), or both.
This section includes specific codes from K25.0 to K25.9 that allow precise identification of different ulcer types. For example, K25.0 is used for acute gastric ulcers with hemorrhage, often called "gastric ulcer with hemorrhage" or "acute gastric ulcer with obstruction," while K25.1 represents ulcers with perforation, synonymous with "acute gastric ulcer with perforation." Codes like K25.3 cover acute ulcers without bleeding or perforation and include conditions such as Helicobacter pylori-induced ulcers or stress ulcers. Chronic ulcers with similar complications are classified from K25.4 through K25.7. The unspecified type, K25.9, is reserved for ulcers where acute or chronic status and complications aren’t detailed. Understanding these synonyms and distinctions helps medical coders accurately assign the appropriate ICD-10 code for gastric ulcers in clinical documentation and billing.
Questions About This Page
How many billable codes are in the K25 range?
Of the 10 codes in this range, 9 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the K25 range classify?
The range classifies gastric ulcer. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
