ICD-10 Code K27.3 – Acute Peptic Ulcer, Site Unspecified, Without Hemorrhage or Perforation (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K27.3 – Acute peptic ulcer, site unspecified, without hemorrhage or perforation
What it is
This code identifies an acute peptic ulcer in an unspecified site, with no documented bleeding or perforation. Use it when the ulcer is newly active and the record does not name the exact location.
Clinical signs
Typical findings include epigastric pain, dyspepsia, nausea, or symptoms that worsen with meals. Clinical features vary; refer to documentation, especially for endoscopic or imaging confirmation.
When to use this code
Use K27.3 when the provider documents an acute peptic ulcer but does not specify gastric or duodenal site. It also fits when the chart confirms no hemorrhage and no perforation. If the note gives more detail, code the documented site instead.
Do not use for
Do not use this code for ulcers with bleeding or perforation, or when the record clearly identifies the stomach or duodenum. Check documentation if the site or complication status is unclear.
Coding tip
Confirm both the ulcer site and complication status before assigning K27.3.