1. K60 Fissure and fistula of anal and rectal regions

    1. K60.0 Acute anal fissure

    2. K60.1 Chronic anal fissure

    3. K60.2 Anal fissure, unspecified

    4. K60.3 Anal fistula

      1. K60.30 Anal fistula, unspecified

        Inclusion term(s):

        • Anal fistula NOS
      2. K60.31 Anal fistula, simple

        Inclusion term(s):

        • Low intersphincteric anal fistula
        • Superficial anal fistula
      3. K60.32 Anal fistula, complex

        Inclusion term(s):

        • Extrasphincteric anal fistula
        • High intersphincteric anal fistula
        • Suprasphincteric anal fistula
        • Transsphincteric anal fistula
    5. K60.4 Rectal fistula

      Inclusion term(s):

      • Fistula of rectum to skin
      1. K60.40 Rectal fistula, unspecified

        Inclusion term(s):

        • Rectal fistula NOS
      2. K60.41 Rectal fistula, simple

        Inclusion term(s):

        • Low intersphincteric rectal fistula
        • Superficial rectal fistula
      3. K60.42 Rectal fistula, complex

        Inclusion term(s):

        • Extrasphincteric rectal fistula
        • High intersphincteric rectal fistula
        • Suprasphincteric rectal fistula
        • Transsphincteric rectal fistula
    6. K60.5 Anorectal fistula

      1. K60.50 Anorectal fistula, unspecified

        Inclusion term(s):

        • Anorectal fistula NOS
      2. K60.51 Anorectal fistula, simple

        Inclusion term(s):

        • Low intersphincteric anorectal fistula
        • Superficial anorectal fistula
      3. K60.52 Anorectal fistula, complex

        Inclusion term(s):

        • Extrasphincteric anorectal fistula
        • High intersphincteric anorectal fistula
        • Suprasphincteric anorectal fistula
        • Transsphincteric anorectal fistula
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.