Excludes2

  • hiatus hernia (K44.-)
  1. K31 Other diseases of stomach and duodenum

    Includes:

    • functional disorders of stomach

    Excludes2

    1. K31.0 Acute dilatation of stomach

      Inclusion term(s):

      • Acute distention of stomach
    2. K31.1 Adult hypertrophic pyloric stenosis

      Inclusion term(s):

      • Pyloric stenosis NOS
    3. K31.2 Hourglass stricture and stenosis of stomach

    4. K31.3 Pylorospasm, not elsewhere classified

    5. K31.4 Gastric diverticulum

    6. K31.5 Obstruction of duodenum

      Inclusion term(s):

      • Constriction of duodenum
      • Duodenal ileus (chronic)
      • Stenosis of duodenum
      • Stricture of duodenum
      • Volvulus of duodenum
    7. K31.6 Fistula of stomach and duodenum

      Inclusion term(s):

      • Gastrocolic fistula
      • Gastrojejunocolic fistula
    8. K31.7 Polyp of stomach and duodenum

    9. K31.8 Other specified diseases of stomach and duodenum

      1. K31.81 Angiodysplasia of stomach and duodenum

        • K31.811 Angiodysplasia of stomach and duodenum with bleeding
        • K31.819 Angiodysplasia of stomach and duodenum without bleeding

          Inclusion term(s):

          • Angiodysplasia of stomach and duodenum NOS
      2. K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum

      3. K31.83 Achlorhydria

      4. K31.84 Gastroparesis

        Inclusion term(s):

        • Gastroparalysis
      5. K31.89 Other diseases of stomach and duodenum

    10. K31.9 Disease of stomach and duodenum, unspecified

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.