1. K81 Cholecystitis

    Use additional code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2)


    • cholecystitis with cholelithiasis (K80.-)
    1. K81.0 Acute cholecystitis

      Inclusion term(s):

      • Abscess of gallbladder
      • Angiocholecystitis
      • Emphysematous (acute) cholecystitis
      • Empyema of gallbladder
      • Gangrene of gallbladder
      • Gangrenous cholecystitis
      • Suppurative cholecystitis
    2. K81.1 Chronic cholecystitis

    3. K81.2 Acute cholecystitis with chronic cholecystitis

    4. K81.9 Cholecystitis, 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.