ICD-10 Code K25 – Gastric ulcer (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K25 – Gastric ulcer
What it is
K25 identifies a peptic ulcer located in the stomach lining. Use it when documentation states a gastric ulcer, with or without bleeding or perforation details.
Clinical signs
Typical findings include epigastric pain, nausea, or upper gastrointestinal bleeding. Clinical features vary; refer to documentation for confirmed ulcer location and complication status.
When to use this code
Use K25 when the provider documents a stomach ulcer and does not assign a more specific site or complication code. Choose the appropriate subcode if bleeding, perforation, or both are documented. Check documentation for acuity and complication details.
Do not use for
Do not use K25 for duodenal ulcers, esophageal ulcers, or unspecified peptic ulcer disease. If the record does not confirm a gastric location, check documentation.
Coding tip
Match the code to the exact ulcer site and complication wording in the note.