ICD-10 Code K28.0 – Acute gastrojejunal ulcer with hemorrhage (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K28.0 – Acute gastrojejunal ulcer with hemorrhage
What it is
K28.0 identifies an acute ulcer at the gastrojejunal anastomosis with active bleeding. Use it when the record documents a recent gastrojejunal ulcer and hemorrhage.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include evidence of upper gastrointestinal bleeding, such as hematemesis or melena, along with endoscopic confirmation of an ulcer at the gastrojejunal site.
When to use this code
Use K28.0 when the provider documents an acute gastrojejunal ulcer and specifies hemorrhage. This is appropriate for postoperative patients with a bleeding marginal ulcer at the anastomosis. Code only when the anatomic site and bleeding are both clearly stated.
Do not use for
Do not use this code for a gastrojejunal ulcer without hemorrhage, or for bleeding from a different gastrointestinal site. Check documentation if the record only mentions abdominal pain, anemia, or suspected bleeding.
Coding tip
Verify both “acute” and “with hemorrhage” in the provider note before assigning K28.0.