ICD-10-CM 2027
ICD-10 code for gastrojejunal peptic ulcer
Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
From the official ICD-10-CM alphabetic index entry “Ulcer, ulcerated, ulcerating, ulceration, ulcerative › gastrojejunal (peptic)”. Page updated September 29, 2026.
About coding gastrojejunal peptic ulcer
The ICD-10-CM code for gastrojejunal peptic ulcer is K28.9 (Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation). The official index lists 11 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K28.9.
Within K28, choose K28.9 (unspecified as acute or chronic, without hemorrhage or perforation) only when documentation doesn't support a more specific option: acute gastrojejunal ulcer with hemorrhage (K28.0), acute gastrojejunal ulcer with perforation (K28.1), acute gastrojejunal ulcer with both hemorrhage and perforation (K28.2), acute gastrojejunal ulcer without hemorrhage or perforation (K28.3), chronic or unspecified gastrojejunal ulcer with hemorrhage (K28.4), chronic or unspecified gastrojejunal ulcer with perforation (K28.5), chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation (K28.6) and chronic gastrojejunal ulcer without hemorrhage or perforation (K28.7).
Use an additional code to identify: alcohol abuse and dependence (F10.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific gastrojejunal peptic ulcer codes (official index)
- with
- hemorrhage K28.4 — Chronic or unspecified gastrojejunal ulcer with hemorrhage
- and perforation K28.6 — Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation
- perforation K28.5 — Chronic or unspecified gastrojejunal ulcer with perforation
- acute K28.3 — Acute gastrojejunal ulcer without hemorrhage or perforation
- with
- hemorrhage K28.0 — Acute gastrojejunal ulcer with hemorrhage
- and perforation K28.2 — Acute gastrojejunal ulcer with both hemorrhage and perforation
- perforation K28.1 — Acute gastrojejunal ulcer with perforation
- chronic K28.7 — Chronic gastrojejunal ulcer without hemorrhage or perforation
- with
- hemorrhage K28.4 — Chronic or unspecified gastrojejunal ulcer with hemorrhage
- and perforation K28.6 — Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation
- perforation K28.5 — Chronic or unspecified gastrojejunal ulcer with perforation
Common questions about gastrojejunal peptic ulcer ICD-10 codes
What is the ICD-10 code for gastrojejunal peptic ulcer?
- K28.9 — Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation. More specific codes apply when the documentation supports them: K28.4, K28.6, K28.5, K28.3 and others below.
What is the ICD-10 code for acute gastrojejunal peptic ulcer?
- K28.3 — Acute gastrojejunal ulcer without hemorrhage or perforation.
What is the ICD-10 code for chronic gastrojejunal peptic ulcer?
- K28.7 — Chronic gastrojejunal ulcer without hemorrhage or perforation.
Is K28.9 billable?
- Yes. K28.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K28.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K28.9 as a principal diagnosis.
Is K28.9 a CC or MCC?
- No. K28.9 is neither a CC nor an MCC under MS-DRG v44.0.