Appendicitis (pneumococcal) (retrocecal) K37

ICD-10-CM Diagnosis Code K37

Unspecified appendicitis

2016 2017 2018 2019 Billable/Specific Code

Type 1 Excludes

• -unspecified appendicitis with peritonitis (K35.2-, K35.3-)

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

  Unspecified acute appendicitis

  2016 2017 2018 2019 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 Billable/Specific Code
    • with gangrene K35.891
      ICD-10-CM Diagnosis Code K35.891

      Other acute appendicitis without perforation, with gangrene

      2019 - New Code 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 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 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 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 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 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 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 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 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 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 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 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 Billable/Specific Code

  Applicable To

  • Chronic appendicitis
  • Recurrent appendicitis
• interval K36
  ICD-10-CM Diagnosis Code K36

  Other appendicitis

  2016 2017 2018 2019 Billable/Specific Code

  Applicable To

  • Chronic appendicitis
  • Recurrent appendicitis
• neurogenic K36
  ICD-10-CM Diagnosis Code K36

  Other appendicitis

  2016 2017 2018 2019 Billable/Specific Code

  Applicable To

  • Chronic appendicitis
  • Recurrent appendicitis
• obstructive K36
  ICD-10-CM Diagnosis Code K36

  Other appendicitis

  2016 2017 2018 2019 Billable/Specific Code

  Applicable To

  • Chronic appendicitis
  • Recurrent appendicitis
• recurrent K36
  ICD-10-CM Diagnosis Code K36

  Other appendicitis

  2016 2017 2018 2019 Billable/Specific Code

  Applicable To

  • Chronic appendicitis
  • Recurrent appendicitis
• relapsing K36
  ICD-10-CM Diagnosis Code K36

  Other appendicitis

  2016 2017 2018 2019 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 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 Billable/Specific Code

  Applicable To

  • Chronic appendicitis
  • Recurrent appendicitis
• subsiding K36
  ICD-10-CM Diagnosis Code K36

  Other appendicitis

  2016 2017 2018 2019 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 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 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 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 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 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 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 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 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 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 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 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 Billable/Specific Code

      Applicable To

      • (Acute) appendicitis with perforation NOS
      • Perforated appendix NOS
      • Ruptured appendix (with localized peritonitis) NOS