K27 Peptic ulcer, site unspecified

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Peptic ulcer, site unspecified is K27 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
K20-K31: Diseases of esophagus, stomach and duodenum (K20-K31)
Category K27
10 codes (9 billable)
FY2026 Status
Stable since FY2024
Includes
  • gastroduodenal ulcer NOS
  • peptic ulcer NOS
Excludes1
Not coded here. These conditions should NOT be coded together with K27.
  • peptic ulcer of newborn (P78.82)
Use Additional Code
  • code to identify:
  • alcohol abuse and dependence (F10.-)

Official Coding Guidelines

Chapter 11 reserved for future expansion

11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.11

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

K27.0 Acute peptic ulcer, site unspecified, with hemorrhage K27.1 Acute peptic ulcer, site unspecified, with perforation K27.2 Acute peptic ulcer, site unspecified, with both hemorrhage and perforation K27.3 Acute peptic ulcer, site unspecified, without hemorrhage or perforation K27.4 Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage K27.5 Chronic or unspecified peptic ulcer, site unspecified, with perforation K27.6 Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation K27.7 Chronic peptic ulcer, site unspecified, without hemorrhage or perforation K27.9 Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation

Related Codes in K27

K27.0 Acute peptic ulcer, site unspecified, with hemorrhage K27.1 Acute peptic ulcer, site unspecified, with perforation K27.2 Acute peptic ulcer, site unspecified, with both hemorrhage and perforation K27.3 Acute peptic ulcer, site unspecified, without hemorrhage or perforation K27.4 Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage K27.5 Chronic or unspecified peptic ulcer, site unspecified, with perforation K27.6 Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation K27.7 Chronic peptic ulcer, site unspecified, without hemorrhage or perforation K27.9 Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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