K26 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Duodenal ulcer.
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Erosion (acute) of duodenum
Duodenum ulcer (peptic)
Postpyloric ulcer (peptic)
Code to identify:
Alcohol abuse and dependence (F10.-)
Peptic ulcer NOS (K27.-)
Acute duodenal ulcer with hemorrhage
Acute duodenal ulcer with perforation
Acute duodenal ulcer with both hemorrhage and perforation
Acute duodenal ulcer without hemorrhage or perforation
Chronic or unspecified duodenal ulcer with hemorrhage
Chronic or unspecified duodenal ulcer with perforation
Chronic or unspecified duodenal ulcer with both hemorrhage and perforation
Chronic duodenal ulcer without hemorrhage or perforation
Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
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