K26
K26: Duodenal ulcer
Non-billable headerICD-10-CM
K26 is a non-billable header ICD-10-CM code for duodenal ulcer. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- peptic ulcer NOS (K27.-)
Use additional code
Add a secondary code to capture the detail described below.
- code to identify:
- alcohol abuse and dependence (F10.-)
Includes
Conditions this code covers.
- erosion (acute) of duodenum
- duodenum ulcer (peptic)
- postpyloric ulcer (peptic)
Other codes that can never be billed with K26
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead K26
9 child codes. Green means billable.
- K26.0Acute duodenal ulcer with hemorrhage
- K26.1Acute duodenal ulcer with perforation
- K26.2Acute duodenal ulcer with both hemorrhage and perforation
- K26.3Acute duodenal ulcer without hemorrhage or perforation
- K26.4Chronic or unspecified duodenal ulcer with hemorrhage
- K26.5Chronic or unspecified duodenal ulcer with perforation
- K26.6Chronic or unspecified duodenal ulcer with both hemorrhage and perforation
- K26.7Chronic duodenal ulcer without hemorrhage or perforation
- K26.9Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation