ICD-10-CM 2027
ICD-10 code for stomach ulcer
Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation
From the official ICD-10-CM alphabetic index entry “Ulcer, ulcerated, ulcerating, ulceration, ulcerative › stomach (eroded) (peptic) (round)”. Page updated September 29, 2026.
About coding stomach ulcer
The ICD-10-CM code for stomach ulcer is K25.9 (Gastric 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 K25.9.
Within K25, choose K25.9 (unspecified as acute or chronic, without hemorrhage or perforation) only when documentation doesn't support a more specific option: acute gastric ulcer with hemorrhage (K25.0), acute gastric ulcer with perforation (K25.1), acute gastric ulcer with both hemorrhage and perforation (K25.2), acute gastric ulcer without hemorrhage or perforation (K25.3), chronic or unspecified gastric ulcer with hemorrhage (K25.4), chronic or unspecified gastric ulcer with perforation (K25.5), chronic or unspecified gastric ulcer with both hemorrhage and perforation (K25.6) and chronic gastric ulcer without hemorrhage or perforation (K25.7).
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 stomach ulcer codes (official index)
- with
- hemorrhage K25.4 — Chronic or unspecified gastric ulcer with hemorrhage
- and perforation K25.6 — Chronic or unspecified gastric ulcer with both hemorrhage and perforation
- perforation K25.5 — Chronic or unspecified gastric ulcer with perforation
- acute K25.3 — Acute gastric ulcer without hemorrhage or perforation
- with
- hemorrhage K25.0 — Acute gastric ulcer with hemorrhage
- and perforation K25.2 — Acute gastric ulcer with both hemorrhage and perforation
- perforation K25.1 — Acute gastric ulcer with perforation
- chronic K25.7 — Chronic gastric ulcer without hemorrhage or perforation
- with
- hemorrhage K25.4 — Chronic or unspecified gastric ulcer with hemorrhage
- and perforation K25.6 — Chronic or unspecified gastric ulcer with both hemorrhage and perforation
- perforation K25.5 — Chronic or unspecified gastric ulcer with perforation
Common questions about stomach ulcer ICD-10 codes
What is the ICD-10 code for stomach ulcer?
- K25.9 — Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation. More specific codes apply when the documentation supports them: K25.4, K25.6, K25.5, K25.3 and others below.
What is the ICD-10 code for acute stomach ulcer?
- K25.3 — Acute gastric ulcer without hemorrhage or perforation.
What is the ICD-10 code for chronic stomach ulcer?
- K25.7 — Chronic gastric ulcer without hemorrhage or perforation.
Is K25.9 billable?
- Yes. K25.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K25.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K25.9 as a principal diagnosis.
Is K25.9 a CC or MCC?
- No. K25.9 is neither a CC nor an MCC under MS-DRG v44.0.