Is K26.1 a billable ICD-10 code?

Yes. K26.1 (Acute duodenal ulcer with perforation) is billable and can be used for insurance claims. Always verify payer-specific requirements.

K26.1 ✓ Billable

Acute duodenal ulcer with perforation

Q: What is ICD-10 code K26.1?

ICD-10-CM code K26.1 stands for "Acute duodenal ulcer with perforation". It is a billable code in the Diseases of the Digestive System chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Diseases of the Digestive System

Code

K26.1

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Diseases of the Digestive System

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code K26.1?

ICD-10-CM code K26.1 represents Acute duodenal ulcer with perforation. It is a billable diagnosis code in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.

Is K26.1 billable?

Yes. K26.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is K26.1 in?

K26.1 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.

Related codes in the K26 category

K26 Duodenal ulcer Non-billable K26.0 Acute duodenal ulcer with hemorrhage Billable K26.2 Acute duodenal ulcer with both hemorrhage and perforation Billable K26.3 Acute duodenal ulcer without hemorrhage or perforation Billable K26.4 Chronic or unspecified duodenal ulcer with hemorrhage Billable K26.5 Chronic or unspecified duodenal ulcer with perforation Billable K26.6 Chronic or unspecified duodenal ulcer with both hemorrhage and perforation Billable K26.7 Chronic duodenal ulcer without hemorrhage or perforation Billable

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