ICD10BillableValid for clinical use
ICD-10 Code K28.9: Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).
When is it used?
- May be used when a clinician documents gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
11Diseases of the digestive system (K00-K95)
block
K20-K31Diseases of esophagus, stomach and duodenum
category
K28Gastrojejunal ulcer
currentK28
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
GastroenterologistGeneral Physician
Related codes
K28.0Acute gastrojejunal ulcer with hemorrhagecodeK28.1Acute gastrojejunal ulcer with perforationcodeK28.2Acute gastrojejunal ulcer with both hemorrhage and perforationcodeK28.3Acute gastrojejunal ulcer without hemorrhage or perforationcodeK28.4Chronic or unspecified gastrojejunal ulcer with hemorrhagecodeK28.5Chronic or unspecified gastrojejunal ulcer with perforationcodeK28.6Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforationcodeK28.7Chronic gastrojejunal ulcer without hemorrhage or perforationcode
Sibling codes
K28.0Acute gastrojejunal ulcer with hemorrhagebillableK28.1Acute gastrojejunal ulcer with perforationbillableK28.2Acute gastrojejunal ulcer with both hemorrhage and perforationbillableK28.3Acute gastrojejunal ulcer without hemorrhage or perforationbillableK28.4Chronic or unspecified gastrojejunal ulcer with hemorrhagebillableK28.5Chronic or unspecified gastrojejunal ulcer with perforationbillableK28.6Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforationbillableK28.7Chronic gastrojejunal ulcer without hemorrhage or perforationbillable
Coverage-related procedures and services
CPT 43235high
ESOPHAGOGASTRODUODENOSCOPY, FLEXIBLE, TRANSORAL; DIAGNOSTIC, INCLUDING COLLECTION OF SPECIMEN(S) BY BRUSHING OR WASHING, WHEN PERFORMED (SEPARATE PROCEDURE)
Source: CMS coverage guidance
CPT 43270high
ESOPHAGOGASTRODUODENOSCOPY, FLEXIBLE, TRANSORAL; WITH ABLATION OF TUMOR(S), POLYP(S), OR OTHER LESION(S) (INCLUDES PRE- AND POST-DILATION AND GUIDE WIRE PASSAGE, WHEN PERFORMED)
Source: CMS coverage guidance
CPT 43244high
ESOPHAGOGASTRODUODENOSCOPY, FLEXIBLE, TRANSORAL; WITH BAND LIGATION OF ESOPHAGEAL/GASTRIC VARICES
Source: CMS coverage guidance
CPT 43239high
ESOPHAGOGASTRODUODENOSCOPY, FLEXIBLE, TRANSORAL; WITH BIOPSY, SINGLE OR MULTIPLE
Source: CMS coverage guidance
CPT 43255high
ESOPHAGOGASTRODUODENOSCOPY, FLEXIBLE, TRANSORAL; WITH CONTROL OF BLEEDING, ANY METHOD
Source: CMS coverage guidance
CPT 43233high
ESOPHAGOGASTRODUODENOSCOPY, FLEXIBLE, TRANSORAL; WITH DILATION OF ESOPHAGUS WITH BALLOON (30 MM DIAMETER OR LARGER) (INCLUDES FLUOROSCOPIC GUIDANCE, WHEN PERFORMED)
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 717890009high
Anastomotic ulcer due to Zollinger-Ellison syndrome
Source: SNOMED International ICD-10 map
SNOMED_CT 724522005high
Anastomotic ulcer of stomach caused by Helicobacter pylori
Source: SNOMED International ICD-10 map
SNOMED_CT 724523000high
Anastomotic ulcer of stomach caused by drug
Source: SNOMED International ICD-10 map
SNOMED_CT 717862005high
Erosion of gastrointestinal anastomosis
Source: SNOMED International ICD-10 map
SNOMED_CT 24060004high
Gastrocolic ulcer
Source: SNOMED International ICD-10 map
SNOMED_CT 1197707003high
Gastrointestinal anastomotic ulcer due to Crohn disease
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
K28.9
Common synonyms
Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforationGastrojejunal ulcer, unspecified as acute or chronic
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.