K26: Duodenal ulcer
Codes under K26 (Duodenal ulcer). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| K26.0 | Acute duodenal ulcer with hemorrhage | ✓ |
| K26.0 | Acute duodenal ulcer with hemorrhage | ✓ |
| K26.1 | Acute duodenal ulcer with perforation | ✓ |
| K26.1 | Acute duodenal ulcer with perforation | ✓ |
| K26.2 | Acute duodenal ulcer with both hemorrhage and perforation | ✓ |
| K26.2 | Acute duodenal ulcer with both hemorrhage and perforation | ✓ |
| K26.3 | Acute duodenal ulcer without hemorrhage or perforation | ✓ |
| K26.3 | Acute duodenal ulcer without hemorrhage or perforation | ✓ |
| K26.4 | Chronic or unspecified duodenal ulcer with hemorrhage | ✓ |
| K26.4 | Chronic or unspecified duodenal ulcer with hemorrhage | ✓ |
| K26.5 | Chronic or unspecified duodenal ulcer with perforation | ✓ |
| K26.5 | Chronic or unspecified duodenal ulcer with perforation | ✓ |
| K26.6 | Chronic or unspecified duodenal ulcer with both hemorrhage and perforation | ✓ |
| K26.6 | Chronic or unspecified duodenal ulcer with both hemorrhage and perforation | ✓ |
| K26.7 | Chronic duodenal ulcer without hemorrhage or perforation | ✓ |
| K26.7 | Chronic duodenal ulcer without hemorrhage or perforation | ✓ |
| K26.9 | Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation | ✓ |
| K26.9 | Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation | ✓ |
Frequently asked questions
What is ICD-10-CM code K26?
K26 is an ICD-10-CM category covering Duodenal ulcer. It contains 18 more specific diagnosis codes, 18 of which are billable.
Is K26 a billable code?
No — K26 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example K26.0 — Acute duodenal ulcer with hemorrhage). 18 of the 18 codes under K26 are billable.
What codes fall under K26?
K26 includes K26.0, K26.0, K26.1, K26.1, K26.2, plus 13 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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