1. 2023 ICD-10-CM Index
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2. 'P' Terms
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3. Index Terms Starting With 'P' (Peritonitis)

Index Terms Starting With 'P' (Peritonitis)

• Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion) K65.9

  ICD-10-CM Diagnosis Code K65.9

  Peritonitis, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Bacterial peritonitis NOS

  • acute K65.0
    (generalized)
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • aseptic T81.61
    ICD-10-CM Diagnosis Code T81.61

    Aseptic peritonitis due to foreign substance accidentally left during a procedure

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

    Applicable To

    • Chemical peritonitis
  • bile, biliary K65.3
    ICD-10-CM Diagnosis Code K65.3

    Choleperitonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Peritonitis due to bile
  • chemical T81.61
    ICD-10-CM Diagnosis Code T81.61

    Aseptic peritonitis due to foreign substance accidentally left during a procedure

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

    Applicable To

    • Chemical peritonitis
  • chlamydial A74.81
    ICD-10-CM Diagnosis Code A74.81

    Chlamydial peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • chronic proliferative K65.8
    ICD-10-CM Diagnosis Code K65.8

    Other peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Chronic proliferative peritonitis
    • Peritonitis due to urine
  • complicating abortion - see Abortion, by type, complicated by, pelvic peritonitis
  • congenital P78.1
    ICD-10-CM Diagnosis Code P78.1

    Other neonatal peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record

    Applicable To

    • Neonatal peritonitis NOS
  • diaphragmatic K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • diffuse K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • diphtheritic A36.89
    ICD-10-CM Diagnosis Code A36.89

    Other diphtheritic complications

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Diphtheritic peritonitis
  • disseminated K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • due to
    • bile K65.3
      ICD-10-CM Diagnosis Code K65.3

      Choleperitonitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

      Applicable To

      • Peritonitis due to bile
    • foreign
      • body or object accidentally left during a procedure T81.599
        (instrument) (sponge) (swab)
        ICD-10-CM Diagnosis Code T81.599

        Other complications of foreign body accidentally left in body following unspecified procedure

        2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
      • substance accidentally left during a procedure T81.61
        (chemical) (powder) (talc)
        ICD-10-CM Diagnosis Code T81.61

        Aseptic peritonitis due to foreign substance accidentally left during a procedure

        2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

        Applicable To

        • Chemical peritonitis
    • talc T81.61
      ICD-10-CM Diagnosis Code T81.61

      Aseptic peritonitis due to foreign substance accidentally left during a procedure

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

      Applicable To

      • Chemical peritonitis
    • urine K65.8
      ICD-10-CM Diagnosis Code K65.8

      Other peritonitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

      Applicable To

      • Chronic proliferative peritonitis
      • Peritonitis due to urine
  • eosinophilic K65.8
    ICD-10-CM Diagnosis Code K65.8

    Other peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Chronic proliferative peritonitis
    • Peritonitis due to urine
    • acute K65.0
      ICD-10-CM Diagnosis Code K65.0

      Generalized (acute) peritonitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

      Applicable To

      • Pelvic peritonitis (acute), male
      • Subphrenic peritonitis (acute)
      • Suppurative peritonitis (acute)
  • fibrocaseous A18.31
    (tuberculous)
    ICD-10-CM Diagnosis Code A18.31

    Tuberculous peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Tuberculous ascites
  • fibropurulent K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • following ectopic or molar pregnancy O08.0
    ICD-10-CM Diagnosis Code O08.0

    Genital tract and pelvic infection following ectopic and molar pregnancy

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx

    Applicable To

    • Endometritis following ectopic and molar pregnancy
    • Oophoritis following ectopic and molar pregnancy
    • Parametritis following ectopic and molar pregnancy
    • Pelvic peritonitis following ectopic and molar pregnancy
    • Salpingitis following ectopic and molar pregnancy
    • Salpingo-oophoritis following ectopic and molar pregnancy

    Type 1 Excludes

    • sepsis following ectopic and molar pregnancy (O08.82)
    • urinary tract infection (O08.83)
  • general K65.0
    (ized)
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • gonococcal A54.85
    ICD-10-CM Diagnosis Code A54.85

    Gonococcal peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Type 1 Excludes

    • gonococcal pelviperitonitis (A54.24)
  • meconium P78.0
    (newborn)
    ICD-10-CM Diagnosis Code P78.0

    Perinatal intestinal perforation

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record

    Applicable To

    • Meconium peritonitis
  • neonatal P78.1
    ICD-10-CM Diagnosis Code P78.1

    Other neonatal peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record

    Applicable To

    • Neonatal peritonitis NOS
    • meconium P78.0
      ICD-10-CM Diagnosis Code P78.0

      Perinatal intestinal perforation

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record

      Applicable To

      • Meconium peritonitis
  • pancreatic K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • paroxysmal, familial E85.0
    ICD-10-CM Diagnosis Code E85.0

    Non-neuropathic heredofamilial amyloidosis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Hereditary amyloid nephropathy

    Code Also

    • associated disorders, such as:
    • autoinflammatory syndromes (M04.-)

    Type 2 Excludes

    • Transthyretin-related (ATTR) familial amyloid cardiomyopathy (E85.4)
    • benign E85.0
      ICD-10-CM Diagnosis Code E85.0

      Non-neuropathic heredofamilial amyloidosis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

      Applicable To

      • Hereditary amyloid nephropathy

      Code Also

      • associated disorders, such as:
      • autoinflammatory syndromes (M04.-)

      Type 2 Excludes

      • Transthyretin-related (ATTR) familial amyloid cardiomyopathy (E85.4)
  • pelvic
    • female N73.5
      ICD-10-CM Diagnosis Code N73.5

      Female pelvic peritonitis, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Female Dx
      • acute N73.3
        ICD-10-CM Diagnosis Code N73.3

        Female acute pelvic peritonitis

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Female Dx
      • chronic N73.4
        ICD-10-CM Diagnosis Code N73.4

        Female chronic pelvic peritonitis

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Female Dx

        Type 1 Excludes

        • tuberculous pelvic (female) peritonitis (A18.17)
        • with adhesions N73.6
          ICD-10-CM Diagnosis Code N73.6

          Female pelvic peritoneal adhesions (postinfective)

          2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Female Dx

          Type 2 Excludes

          • postprocedural pelvic peritoneal adhesions (N99.4)
    • male K65.0
      ICD-10-CM Diagnosis Code K65.0

      Generalized (acute) peritonitis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

      Applicable To

      • Pelvic peritonitis (acute), male
      • Subphrenic peritonitis (acute)
      • Suppurative peritonitis (acute)
  • periodic, familial E85.0
    ICD-10-CM Diagnosis Code E85.0

    Non-neuropathic heredofamilial amyloidosis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Hereditary amyloid nephropathy

    Code Also

    • associated disorders, such as:
    • autoinflammatory syndromes (M04.-)

    Type 2 Excludes

    • Transthyretin-related (ATTR) familial amyloid cardiomyopathy (E85.4)
  • proliferative, chronic K65.8
    ICD-10-CM Diagnosis Code K65.8

    Other peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Chronic proliferative peritonitis
    • Peritonitis due to urine
  • puerperal, postpartum, childbirth O85
    ICD-10-CM Diagnosis Code O85

    Puerperal sepsis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx

    Applicable To

    • Postpartum sepsis
    • Puerperal peritonitis
    • Puerperal pyemia

    Type 1 Excludes

    • fever of unknown origin following delivery (O86.4)
    • genital tract infection following delivery (O86.1-)
    • obstetric pyemic and septic embolism (O88.3-)
    • puerperal septic thrombophlebitis (O86.81)
    • urinary tract infection following delivery (O86.2-)

    Type 2 Excludes

    • sepsis during labor (O75.3)

    Use Additional

    • code (B95-B97), to identify infectious agent
  • purulent K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • septic K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • specified NEC K65.8
    ICD-10-CM Diagnosis Code K65.8

    Other peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Chronic proliferative peritonitis
    • Peritonitis due to urine
  • spontaneous bacterial K65.2
    ICD-10-CM Diagnosis Code K65.2

    Spontaneous bacterial peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Type 1 Excludes

    • bacterial peritonitis NOS (K65.9)
  • subdiaphragmatic K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • subphrenic K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • suppurative K65.0
    ICD-10-CM Diagnosis Code K65.0

    Generalized (acute) peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Pelvic peritonitis (acute), male
    • Subphrenic peritonitis (acute)
    • Suppurative peritonitis (acute)
  • syphilitic A52.74
    ICD-10-CM Diagnosis Code A52.74

    Syphilis of liver and other viscera

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Late syphilitic peritonitis
    • congenital A50.08
      (early)
      ICD-10-CM Diagnosis Code A50.08

      Early visceral congenital syphilis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • talc T81.61
    ICD-10-CM Diagnosis Code T81.61

    Aseptic peritonitis due to foreign substance accidentally left during a procedure

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

    Applicable To

    • Chemical peritonitis
  • tuberculous A18.31
    ICD-10-CM Diagnosis Code A18.31

    Tuberculous peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Tuberculous ascites
  • urine K65.8
    ICD-10-CM Diagnosis Code K65.8

    Other peritonitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Applicable To

    • Chronic proliferative peritonitis
    • Peritonitis due to urine
  • with or following
    • abscess K65.1
      ICD-10-CM Diagnosis Code K65.1

      Peritoneal abscess

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

      Applicable To

      • Abdominopelvic abscess
      • Abscess (of) omentum
      • Abscess (of) peritoneum
      • Mesenteric abscess
      • Retrocecal abscess
      • Subdiaphragmatic abscess
      • Subhepatic abscess
      • Subphrenic abscess
    • appendicitis
      • generalized K35.20
        - see also Appendicitis
        ICD-10-CM Diagnosis Code K35.20

        Acute appendicitis with generalized peritonitis, without abscess

        2019 - New Code 2020 2021 2022 2023 Billable/Specific Code

        Applicable To

        • (Acute) appendicitis with generalized peritonitis NOS
      • localized K35.30
        - see also Appendicitis
        ICD-10-CM Diagnosis Code K35.30

        Acute appendicitis with localized peritonitis, without perforation or gangrene

        2019 - New Code 2020 2021 2022 2023 Billable/Specific Code

        Applicable To

        • Acute appendicitis with localized peritonitis NOS
      • with perforation or rupture K35.32
        ICD-10-CM Diagnosis Code K35.32

        Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscess

        2019 - New Code 2020 2021 2022 2023 - Revised Code Billable/Specific Code

        Applicable To

        • (Acute) appendicitis with perforation NOS
        • Perforated appendix NOS
        • Ruptured appendix (with localized peritonitis) NOS
    • diverticular disease (intestine) K57.80
      ICD-10-CM Diagnosis Code K57.80

      Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      • ectopic or molar pregnancy O08.0
        ICD-10-CM Diagnosis Code O08.0

        Genital tract and pelvic infection following ectopic and molar pregnancy

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Maternity Dx (12-55 years) Female Dx

        Applicable To

        • Endometritis following ectopic and molar pregnancy
        • Oophoritis following ectopic and molar pregnancy
        • Parametritis following ectopic and molar pregnancy
        • Pelvic peritonitis following ectopic and molar pregnancy
        • Salpingitis following ectopic and molar pregnancy
        • Salpingo-oophoritis following ectopic and molar pregnancy

        Type 1 Excludes

        • sepsis following ectopic and molar pregnancy (O08.82)
        • urinary tract infection (O08.83)
      • large intestine K57.20
        ICD-10-CM Diagnosis Code K57.20

        Diverticulitis of large intestine with perforation and abscess without bleeding

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
        • with
          • bleeding K57.21
            ICD-10-CM Diagnosis Code K57.21

            Diverticulitis of large intestine with perforation and abscess with bleeding

            2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
          • small intestine K57.40
            ICD-10-CM Diagnosis Code K57.40

            Diverticulitis of both small and large intestine with perforation and abscess without bleeding

            2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
            • with bleeding K57.41
              ICD-10-CM Diagnosis Code K57.41

              Diverticulitis of both small and large intestine with perforation and abscess with bleeding

              2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      • small intestine K57.00
        ICD-10-CM Diagnosis Code K57.00

        Diverticulitis of small intestine with perforation and abscess without bleeding

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
        • with
          • bleeding K57.01
            ICD-10-CM Diagnosis Code K57.01

            Diverticulitis of small intestine with perforation and abscess with bleeding

            2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
          • large intestine K57.40
            ICD-10-CM Diagnosis Code K57.40

            Diverticulitis of both small and large intestine with perforation and abscess without bleeding

            2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
            • with bleeding K57.41
              ICD-10-CM Diagnosis Code K57.41

              Diverticulitis of both small and large intestine with perforation and abscess with bleeding

              2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      • with bleeding K57.81
        ICD-10-CM Diagnosis Code K57.81

        Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code