ICD-10 Code K28.3 – Acute gastrojejunal ulcer without hemorrhage or perforation (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K28.3 – Acute gastrojejunal ulcer without hemorrhage or perforation
What it is
This code identifies a newly occurring ulcer at the gastrojejunal anastomosis, without bleeding or perforation. Use it when the record clearly states an acute gastrojejunal ulcer and does not describe complications.
Clinical signs
Clinical features may include epigastric pain, nausea, vomiting, or intolerance of oral intake. Endoscopy may document an ulcer at the gastrojejunal junction; clinical features vary; refer to documentation.
When to use this code
Use K28.3 when the provider documents an acute gastrojejunal ulcer and specifically states there is no hemorrhage or perforation. It is appropriate for postoperative patients with a confirmed anastomotic ulcer and no listed complications. Check documentation if the record does not clearly identify the site or acuity.
Do not use for
Do not use this code if the ulcer is chronic, bleeding, or perforated. Also avoid it when the note only says “marginal ulcer” without confirming an acute gastrojejunal ulcer; check documentation.
Coding tip
Confirm both the anatomic site and the absence of hemorrhage or perforation before assigning K28.3.