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K65

Non-Billable (Header)

Peritonitis

Excludes 1 — Do NOT code together

  • acute appendicitis with generalized peritonitis (K35.2-)
  • aseptic peritonitis (T81.6)
  • benign paroxysmal peritonitis (E85.0)
  • chemical peritonitis (T81.6)
  • gonococcal peritonitis (A54.85)
  • neonatal peritonitis (P78.0-P78.1)
  • pelvic peritonitis, female (N73.3-N73.5)
  • periodic familial peritonitis (E85.0)
  • peritonitis due to talc or other foreign substance (T81.6)
  • peritonitis in chlamydia (A74.81)
  • peritonitis in diphtheria (A36.89)
  • peritonitis in syphilis (late) (A52.74)
  • peritonitis in tuberculosis (A18.31)
  • peritonitis with or following abortion or ectopic or molar pregnancy (O00-O07, O08.0)
  • peritonitis with or following appendicitis (K35.-)
  • puerperal peritonitis (O85)
  • retroperitoneal infections (K68.-)

Use Additional Code

  • code (B95-B97), to identify infectious agent, if known

Code Also

  • if applicable diverticular disease of intestine (K57.-)

Child Codes

K65.0Generalized (acute) peritonitis
HCC 78
K65.1Peritoneal abscess
HCC 78
K65.2Spontaneous bacterial peritonitis
HCC 78
K65.3Choleperitonitis
HCC 78
K65.4Sclerosing mesenteritis
HCC 78
K65.8Other peritonitis
HCC 78
K65.9Peritonitis, unspecified
HCC 78

Code Hierarchy

└K65Peritonitis
└K65Peritonitis

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