Index Terms Starting With 'A' (Appendicitis)

  • Appendicitis (pneumococcal) (retrocecal) K37
    ICD-10-CM Diagnosis Code K37

    Unspecified appendicitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 1 Excludes

    • acute (catarrhal) (fulminating) (gangrenous) (obstructive) (retrocecal) (suppurative) K35.80
      ICD-10-CM Diagnosis Code K35.80

      Unspecified acute appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Acute appendicitis NOS
      • Acute appendicitis without (localized) (generalized) peritonitis
      • specified NEC K35.890
        ICD-10-CM Diagnosis Code K35.890

        Other acute appendicitis without perforation or gangrene

          2019 - New Code 2020 Billable/Specific Code
        • with gangrene K35.891
          ICD-10-CM Diagnosis Code K35.891

          Other acute appendicitis without perforation, with gangrene

            2019 - New Code 2020 Billable/Specific Code
          Applicable To
          • (Acute) appendicitis with gangrene NOS
      • with
        • gangrene K35.891
          ICD-10-CM Diagnosis Code K35.891

          Other acute appendicitis without perforation, with gangrene

            2019 - New Code 2020 Billable/Specific Code
          Applicable To
          • (Acute) appendicitis with gangrene NOS
        • peritoneal abscess K35.33
          ICD-10-CM Diagnosis Code K35.33

          Acute appendicitis with perforation and localized peritonitis, with abscess

            2019 - New Code 2020 Billable/Specific Code
          Applicable To
          • (Acute) appendicitis with (peritoneal) abscess NOS
          • Ruptured appendix with localized peritonitis and abscess
        • peritonitis NEC K35.33
          ICD-10-CM Diagnosis Code K35.33

          Acute appendicitis with perforation and localized peritonitis, with abscess

            2019 - New Code 2020 Billable/Specific Code
          Applicable To
          • (Acute) appendicitis with (peritoneal) abscess NOS
          • Ruptured appendix with localized peritonitis and abscess
          • generalized (with perforation or rupture) K35.20
            ICD-10-CM Diagnosis Code K35.20

            Acute appendicitis with generalized peritonitis, without abscess

              2019 - New Code 2020 Billable/Specific Code
            Applicable To
            • (Acute) appendicitis with generalized peritonitis NOS
            • with abscess K35.21
              ICD-10-CM Diagnosis Code K35.21

              Acute appendicitis with generalized peritonitis, with abscess

                2019 - New Code 2020 Billable/Specific Code
          • localized K35.30
            ICD-10-CM Diagnosis Code K35.30

            Acute appendicitis with localized peritonitis, without perforation or gangrene

              2019 - New Code 2020 Billable/Specific Code
            Applicable To
            • Acute appendicitis with localized peritonitis NOS
            • with
              • gangrene K35.31
                ICD-10-CM Diagnosis Code K35.31

                Acute appendicitis with localized peritonitis and gangrene, without perforation

                  2019 - New Code 2020 Billable/Specific Code
              • perforation K35.32
                ICD-10-CM Diagnosis Code K35.32

                Acute appendicitis with perforation and localized peritonitis, without abscess

                  2019 - New Code 2020 Billable/Specific Code
                Applicable To
                • (Acute) appendicitis with perforation NOS
                • Perforated appendix NOS
                • Ruptured appendix (with localized peritonitis) NOS
                • and abscess K35.33
                  ICD-10-CM Diagnosis Code K35.33

                  Acute appendicitis with perforation and localized peritonitis, with abscess

                    2019 - New Code 2020 Billable/Specific Code
                  Applicable To
                  • (Acute) appendicitis with (peritoneal) abscess NOS
                  • Ruptured appendix with localized peritonitis and abscess
    • amebic A06.89
      ICD-10-CM Diagnosis Code A06.89

      Other amebic infections

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Amebic appendicitis
      • Amebic splenic abscess
    • chronic K36
      (recurrent)
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • exacerbation - see Appendicitis, acute
    • gangrenous - see Appendicitis, acute
    • healed K36
      (obliterative)
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • interval K36
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • neurogenic K36
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • obstructive K36
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • recurrent K36
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • relapsing K36
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • ruptured NOS K35.32
      (with localized peritonitis)
      ICD-10-CM Diagnosis Code K35.32

      Acute appendicitis with perforation and localized peritonitis, without abscess

        2019 - New Code 2020 Billable/Specific Code
      Applicable To
      • (Acute) appendicitis with perforation NOS
      • Perforated appendix NOS
      • Ruptured appendix (with localized peritonitis) NOS
    • subacute K36
      (adhesive)
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • subsiding K36
      ICD-10-CM Diagnosis Code K36

      Other appendicitis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic appendicitis
      • Recurrent appendicitis
    • suppurative - see Appendicitis, acute
    • tuberculous A18.32
      ICD-10-CM Diagnosis Code A18.32

      Tuberculous enteritis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Tuberculosis of anus and rectum
      • Tuberculosis of intestine (large) (small)
    • with
      • gangrene K35.891
        ICD-10-CM Diagnosis Code K35.891

        Other acute appendicitis without perforation, with gangrene

          2019 - New Code 2020 Billable/Specific Code
        Applicable To
        • (Acute) appendicitis with gangrene NOS
      • perforation NOS K35.32
        ICD-10-CM Diagnosis Code K35.32

        Acute appendicitis with perforation and localized peritonitis, without abscess

          2019 - New Code 2020 Billable/Specific Code
        Applicable To
        • (Acute) appendicitis with perforation NOS
        • Perforated appendix NOS
        • Ruptured appendix (with localized peritonitis) NOS
      • peritoneal abscess K35.33
        ICD-10-CM Diagnosis Code K35.33

        Acute appendicitis with perforation and localized peritonitis, with abscess

          2019 - New Code 2020 Billable/Specific Code
        Applicable To
        • (Acute) appendicitis with (peritoneal) abscess NOS
        • Ruptured appendix with localized peritonitis and abscess
      • peritonitis NEC K35.33
        ICD-10-CM Diagnosis Code K35.33

        Acute appendicitis with perforation and localized peritonitis, with abscess

          2019 - New Code 2020 Billable/Specific Code
        Applicable To
        • (Acute) appendicitis with (peritoneal) abscess NOS
        • Ruptured appendix with localized peritonitis and abscess
        • generalized (with perforation or rupture) K35.20
          ICD-10-CM Diagnosis Code K35.20

          Acute appendicitis with generalized peritonitis, without abscess

            2019 - New Code 2020 Billable/Specific Code
          Applicable To
          • (Acute) appendicitis with generalized peritonitis NOS
          • with abscess K35.21
            ICD-10-CM Diagnosis Code K35.21

            Acute appendicitis with generalized peritonitis, with abscess

              2019 - New Code 2020 Billable/Specific Code
        • localized K35.30
          ICD-10-CM Diagnosis Code K35.30

          Acute appendicitis with localized peritonitis, without perforation or gangrene

            2019 - New Code 2020 Billable/Specific Code
          Applicable To
          • Acute appendicitis with localized peritonitis NOS
          • with
            • gangrene K35.31
              ICD-10-CM Diagnosis Code K35.31

              Acute appendicitis with localized peritonitis and gangrene, without perforation

                2019 - New Code 2020 Billable/Specific Code
            • perforation K35.32
              ICD-10-CM Diagnosis Code K35.32

              Acute appendicitis with perforation and localized peritonitis, without abscess

                2019 - New Code 2020 Billable/Specific Code
              Applicable To
              • (Acute) appendicitis with perforation NOS
              • Perforated appendix NOS
              • Ruptured appendix (with localized peritonitis) NOS
              • and abscess K35.33
                ICD-10-CM Diagnosis Code K35.33

                Acute appendicitis with perforation and localized peritonitis, with abscess

                  2019 - New Code 2020 Billable/Specific Code
                Applicable To
                • (Acute) appendicitis with (peritoneal) abscess NOS
                • Ruptured appendix with localized peritonitis and abscess
        • rupture K35.32
          (with localized peritonitis)
          ICD-10-CM Diagnosis Code K35.32

          Acute appendicitis with perforation and localized peritonitis, without abscess

            2019 - New Code 2020 Billable/Specific Code
          Applicable To
          • (Acute) appendicitis with perforation NOS
          • Perforated appendix NOS
          • Ruptured appendix (with localized peritonitis) NOS