Excludes2

  • hiatus hernia (K44.-)
  1. K26 Duodenal ulcer

    Use additional code to identify:
    alcohol abuse and dependence (F10.-)

    Includes:

    • erosion (acute) of duodenum
    • duodenum ulcer (peptic)
    • postpyloric ulcer (peptic)

    Excludes1

    • peptic ulcer NOS (K27.-)
    1. K26.0 Acute duodenal ulcer with hemorrhage

    2. K26.1 Acute duodenal ulcer with perforation

    3. K26.2 Acute duodenal ulcer with both hemorrhage and perforation

    4. K26.3 Acute duodenal ulcer without hemorrhage or perforation

    5. K26.4 Chronic or unspecified duodenal ulcer with hemorrhage

    6. K26.5 Chronic or unspecified duodenal ulcer with perforation

    7. K26.6 Chronic or unspecified duodenal ulcer with both hemorrhage and perforation

    8. K26.7 Chronic duodenal ulcer without hemorrhage or perforation

    9. K26.9 Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.