Gastrojejunal ulcer (K28) ICD-10-CM
The K28 code range covers gastrojejunal ulcer with 10 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- 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
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code to identify:
- alcohol abuse and dependence F10
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- primary ulcer of small intestine K63.3
Codes in the K28 Range 10 codes · 9 billable
- K28 Gastrojejunal ulcerNon-billable
- K28.0 Acute gastrojejunal ulcer with hemorrhage
- K28.1 Acute gastrojejunal ulcer with perforation
- K28.2 Acute gastrojejunal ulcer with both hemorrhage and perforation
- K28.3 Acute gastrojejunal ulcer without hemorrhage or perforation
- K28.4 Chronic or unspecified gastrojejunal ulcer with hemorrhage
- K28.5 Chronic or unspecified gastrojejunal ulcer with perforation
- K28.6 Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation
- K28.7 Chronic gastrojejunal ulcer without hemorrhage or perforation
- K28.9 Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
About the K28 Code Range
Gastrojejunal ulcers appear in the digestive system group for diseases of the esophagus, stomach, and duodenum.
The subdivisions separate acute ulcers from chronic or unspecified ulcers. For acute ulcers, K28.0 through K28.3 distinguish bleeding, a hole (perforation), both, or neither. For chronic or unspecified ulcers, K28.4 through K28.6 distinguish bleeding, perforation, or both. Without either, K28.7 identifies a chronic ulcer, while K28.9 leaves acute or chronic status unspecified.
Questions About This Page
How many billable codes are in the K28 range?
Of the 10 codes in this range, 9 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the K28 range classify?
The range classifies gastrojejunal ulcer. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
