ICD-10-CM Code K28.9

Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Version 2020 Billable Code

Valid for Submission

K28.9 is a billable code used to specify a medical diagnosis of gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code K28.9 might also be used to specify conditions or terms like anastomotic ulcer due to zollinger-ellison syndrome, erosion of gastrointestinal anastomosis, gastrocolic ulcer, gastrointestinal ulcer, gastrojejunal ulcer, gastrojejunal ulcer without hemorrhage and without perforation, etc

Short Description:Gastrojejunal ulcer, unsp as acute or chr, w/o hemor or perf
Long Description:Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code K28.9 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Anastomotic ulcer due to Zollinger-Ellison syndrome
  • Erosion of gastrointestinal anastomosis
  • Gastrocolic ulcer
  • Gastrointestinal ulcer
  • Gastrojejunal ulcer
  • Gastrojejunal ulcer without hemorrhage AND without perforation
  • Gastrojejunal ulcer without hemorrhage AND without perforation but with obstruction
  • Gastrojejunal ulcer without hemorrhage, without perforation AND without obstruction
  • Jejunal ulcer
  • Parastomal ulceration
  • Sepsis-related gastrointestinal ulceration

Diagnostic Related Groups

The ICD-10 code K28.9 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert K28.9 to ICD-9

  • 534.90 - Gastrojejunal ulcer NOS (Approximate Flag)

Code Classification

  • Diseases of the digestive system (K00–K93)
    • Diseases of esophagus, stomach and duodenum (K20-K31)
      • Gastrojejunal ulcer (K28)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Peptic Ulcer

A peptic ulcer is a sore in the lining of your stomach or your duodenum, the first part of your small intestine. A burning stomach pain is the most common symptom. The pain

  • Starts between meals or during the night
  • Briefly stops if you eat or take antacids
  • Lasts for minutes to hours
  • Comes and goes for several days or weeks

Peptic ulcers happen when the acids that help you digest food damage the walls of the stomach or duodenum. The most common cause is infection with a bacterium called Helicobacter pylori. Another cause is the long-term use of nonsteroidal anti-inflammatory medicines (NSAIDs) such as aspirin and ibuprofen. Stress and spicy foods do not cause ulcers, but can make them worse.

To see if you have an H. pylori infection, your doctor will test your blood, breath, or stool. Your doctor also may look inside your stomach and duodenum by doing an endoscopy or x-ray.

Peptic ulcers will get worse if not treated. Treatment may include medicines to reduce stomach acids or antibiotics to kill H. pylori. Antacids and milk can't heal peptic ulcers. Not smoking and avoiding alcohol can help. You may need surgery if your ulcers don't heal.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

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