ICD-10-CM 2027
ICD-10 code for peptic lesion
Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation
From the official ICD-10-CM alphabetic index entry “Lesion (s) (nontraumatic) › peptic”. Page updated September 29, 2026.
About coding peptic lesion
The ICD-10-CM code for peptic lesion is K27.9 (Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation).
Within K27, choose K27.9 (unspecified as acute or chronic, without hemorrhage or perforation) only when documentation doesn't support a more specific option: acute peptic ulcer, site unspecified, with hemorrhage (K27.0), acute peptic ulcer, site unspecified, with perforation (K27.1), acute peptic ulcer, site unspecified, with both hemorrhage and perforation (K27.2), acute peptic ulcer, site unspecified, without hemorrhage or perforation (K27.3), chronic or unspecified peptic ulcer, site unspecified, with hemorrhage (K27.4), chronic or unspecified peptic ulcer, site unspecified, with perforation (K27.5), chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation (K27.6) and chronic peptic ulcer, site unspecified, without hemorrhage or perforation (K27.7).
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.
Common questions about peptic lesion ICD-10 codes
What is the ICD-10 code for peptic lesion?
- K27.9 — Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation.
Is K27.9 billable?
- Yes. K27.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K27.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K27.9 as a principal diagnosis.
Is K27.9 a CC or MCC?
- No. K27.9 is neither a CC nor an MCC under MS-DRG v44.0.