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ICD-10-CM Codes
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K00-K95
Diseases of the digestive system
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K20-K31
Diseases of esophagus, stomach and duodenum
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Duodenal ulcer K26
Duodenal ulcer K26-
Use AdditionalUse Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
Type 1 ExcludesType 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K26. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
IncludesIncludes Help
"Includes" further defines, or give examples of, the content of the code or category.
- erosion (acute) of duodenum
- duodenum ulcer (peptic)
- postpyloric ulcer (peptic)
Clinical Information
- A disorder characterized by a circumscribed, inflammatory and necrotic erosive lesion on the mucosal surface of the duodenal wall.
- A peptic ulcer located in the duodenum.
- An ulcer in the duodenal wall.
- Peptic ulcer located in the duodenum, the shortest and widest portion of the small intestine adjacent to the pylorus of the stomach.
Codes
- K26 Duodenal ulcer
- K26.0 Acute duodenal ulcer with hemorrhage
- K26.1 Acute duodenal ulcer with perforation
- K26.2 Acute duodenal ulcer with both hemorrhage and perforation
- K26.3 Acute duodenal ulcer without hemorrhage or perforation
- K26.4 Chronic or unspecified duodenal ulcer with hemorrhage
- K26.5 Chronic or unspecified duodenal ulcer with perforation
- K26.6 Chronic or unspecified duodenal ulcer with both hemorrhage and perforation
- K26.7 Chronic duodenal ulcer without hemorrhage or perforation
- K26.9 Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
