K28
ICD-10Non-billable categoryGastrojejunal ulcer
Official ICD-10-CM descriptor (FY2026)
Gastrojejunal ulcer
K28 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Includes
- anastomotic ulcer (peptic) or erosion
- gastrocolic ulcer (peptic) or erosion
- gastrointestinal ulcer (peptic) or erosion
- gastrojejunal ulcer (peptic) or erosion
- jejunal ulcer (peptic) or erosion
- marginal ulcer (peptic) or erosion
- stomal ulcer (peptic) or erosion
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- primary ulcer of small intestine (K63.3)
Use additional code
Report an additional code to identify the associated condition.
- code to identify:
- alcohol abuse and dependence (F10.-)
More specific codes under K28
- K28.0Acute gastrojejunal ulcer with hemorrhage
- K28.1Acute gastrojejunal ulcer with perforation
- K28.2Acute gastrojejunal ulcer w 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 unsp gastrojejunal ulcer w both hemor and perf
- K28.7Chronic gastrojejunal ulcer w/o hemorrhage or perforation
- K28.9Gastrojejunal ulcer, unsp as acute or chr, w/o hemor or perf
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.