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    v1.0.28
    OpenPayerBilling CodesDiseases of esophagus, stomach and duodenumICD-10-CM k28-gastrojejunal-ulcer
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    ICD-10-CM Code For Gastrojejunal Ulcer: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group K28 includes gastrojejunal ulcers and related subcategories that describe ulceration of the jejunum often with or without hemorrhage or perforation. These ICD-10-CM diagnosis codes are used to document clinical scenarios such as acute bleeding, perforated ulcer, or refractory ulcer disease and capture disease severity and complications. Accurate coding within the ICD-10-CM K28 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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    ICD-10-CM K28: Gastrojejunal Ulcer Overview

    The ICD-10-CM K28 code group represents gastrojejunal ulcers, which are peptic ulcerations located in the jejunal segment of the small intestine often related to acid damage or Helicobacter pylori infection. These diagnoses target the digestive system and complications such as bleeding, perforation, or obstruction. Accurate coding matters for documentation of clinical complexity and for appropriate reimbursement and claim adjudication.

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    When to Use

    Use a code from this group when clinical documentation indicates an ulcer located in the jejunum, including documentation of bleeding or perforation when present. Select the code that matches the documented complication status and any specified acute or chronic nature of the ulcer.

    ICD-10-CM Codes

    9 rows

    ICD-10-CM CodeDescription
    K28.0Acute gastrojejunal ulcer with hemorrhage
    K28.1Acute gastrojejunal ulcer with perforation
    K28.2Acute gastrojejunal ulcer with both hemorrhage and perforation
    K28.3Acute gastrojejunal ulcer without hemorrhage or perforation
    K28.4Chronic or unspecified gastrojejunal ulcer with hemorrhage
    K28.5Chronic or unspecified gastrojejunal ulcer with perforation
    K28.6Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation
    K28.7Chronic gastrojejunal ulcer without hemorrhage or perforation
    K28.9Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

    DRG Codes

    6 rows

    DRG CodeDescription
    377Gastrointestinal Hemorrhage with MCC
    378Gastrointestinal Hemorrhage with CC
    379Gastrointestinal Hemorrhage without CC/MCC
    380Complicated Peptic Ulcer with MCC
    381Complicated Peptic Ulcer with CC
    382Complicated Peptic Ulcer without CC/MCC

    Typical Clinical Scenarios

    • An older adult with a history of chronic NSAID use presents to the emergency department with sudden onset epigastric pain, hematemesis, and hypotension. Endoscopy reveals an actively bleeding gastric ulcer on the gastrojejunal anastomosis site after prior partial gastrectomy, requiring endoscopic hemostasis; a diagnosis from this group is assigned for the acute bleeding post-surgical ulcer. Typical codes: K28.0, K28.2
    • A middle-aged patient with prior Roux-en-Y gastric bypass reports months of persistent epigastric discomfort, early satiety, and intermittent melena without hemodynamic instability. Outpatient evaluation including endoscopy documents a chronic, nonhealing ulcer at the gastrojejunal anastomosis; this ongoing post-surgical ulceration is coded from this group to capture the chronicity and anatomical location. Typical codes: K28.4, K28.6
    • A hospitalized patient recovering from sepsis is found on imaging and endoscopy to have a perforated ulcer at a gastrojejunal anastomosis with localized peritonitis, necessitating surgical repair and intensive monitoring. Because the ulcer has led to a serious complication (perforation) at the gastrojejunal site, a complication-specific code from this group is assigned in the inpatient record. Typical codes: K28.1, K28.3

    Related Codes

    K20-ESOPHAGITIS

    ICD-10-CM Code For Esophagitis: Group Overview

    K21-GASTRO-ESOPHAGEAL-REFLUX-DISEASE

    ICD-10-CM Code For Gastro-Esophageal Reflux Disease: Group Overview

    K22-OTHER-DISEASES-OF-ESOPHAGUS

    ICD-10-CM Code For Other Diseases Of Esophagus: Group Overview

    K23-DISORDERS-OF-ESOPHAGUS

    ICD-10-CM Code For Disorders Of Esophagus In Diseases Classified Elsewhere: Group Overview

    K25-GASTRIC-ULCER

    ICD-10-CM Code For Gastric Ulcer: Group Overview

    K26-DUODENAL-ULCER

    ICD-10-CM Code For Duodenal Ulcer: Group Overview

    K27-PEPTIC-ULCER-SITE-UNSPECIFIED

    ICD-10-CM Code For Peptic Ulcer Site Unspecified: Group Overview

    K29-GASTRITIS-AND-DUODENITIS

    ICD-10-CM Code For Gastritis And Duodenitis: Group Overview

    K30-FUNCTIONAL-DYSPEPSIA

    ICD-10-CM Code For Functional Dyspepsia: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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