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Peritonitis and intra-abdominal abscess

CCSR category DIG016 · 53 ICD-10-CM codes

Code Families in This Category

  • K35 Acute appendicitis · 14
  • K61 Abscess of anal and rectal regions · 8
  • K51 Ulcerative colitis · 7
  • K65 Peritonitis · 7
  • K50 Crohn's disease [regional enteritis] · 4
  • K57 Diverticular disease of intestine · 4
  • K68 Disorders of retroperitoneum · 3
  • A18 Tuberculosis of other organs · 1
  • A54 Gonococcal infection · 1
  • A74 Other diseases caused by chlamydiae · 1
  • K63 Other diseases of intestine · 1
  • K67 Disorders of peritoneum in infectious diseases classified elsewhere · 1
  • K75 Other inflammatory liver diseases · 1

ICD-10-CM Codes in This Category (53)

  • A18.31 — Tuberculous peritonitis
  • A54.85 — Gonococcal peritonitis
  • A74.81 — Chlamydial peritonitis
  • K35.2 — Acute appendicitis with generalized peritonitis
  • K35.20 — Acute appendicitis with generalized peritonitis, without abscess
  • K35.200 — Acute appendicitis with generalized peritonitis, without perforation or abscess
  • K35.201 — Acute appendicitis with generalized peritonitis, with perforation, without abscess
  • K35.209 — Acute appendicitis with generalized peritonitis, without abscess, unspecified as to perforation
  • K35.21 — Acute appendicitis with generalized peritonitis, with abscess
  • K35.210 — Acute appendicitis with generalized peritonitis, without perforation, with abscess
  • K35.211 — Acute appendicitis with generalized peritonitis, with perforation and abscess
  • K35.219 — Acute appendicitis with generalized peritonitis, with abscess, unspecified as to perforation
  • K35.3 — Acute appendicitis with localized peritonitis
  • K35.30 — Acute appendicitis with localized peritonitis, without perforation or gangrene
  • K35.31 — Acute appendicitis with localized peritonitis and gangrene, without perforation
  • K35.32 — Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscess
  • K35.33 — Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess
  • K50.014 — Crohn's disease of small intestine with abscess
  • K50.114 — Crohn's disease of large intestine with abscess
  • K50.814 — Crohn's disease of both small and large intestine with abscess
  • K50.914 — Crohn's disease, unspecified, with abscess
  • K51.014 — Ulcerative (chronic) pancolitis with abscess
  • K51.214 — Ulcerative (chronic) proctitis with abscess
  • K51.314 — Ulcerative (chronic) rectosigmoiditis with abscess
  • K51.414 — Inflammatory polyps of colon with abscess
  • K51.514 — Left sided colitis with abscess
  • K51.814 — Other ulcerative colitis with abscess
  • K51.914 — Ulcerative colitis, unspecified with abscess
  • K57.00 — Diverticulitis of small intestine with perforation and abscess without bleeding
  • K57.20 — Diverticulitis of large intestine with perforation and abscess without bleeding
  • K57.40 — Diverticulitis of both small and large intestine with perforation and abscess without bleeding
  • K57.80 — Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding
  • K61.0 — Anal abscess
  • K61.1 — Rectal abscess
  • K61.2 — Anorectal abscess
  • K61.3 — Ischiorectal abscess
  • K61.31 — Horseshoe abscess
  • K61.39 — Other ischiorectal abscess
  • K61.4 — Intrasphincteric abscess
  • K61.5 — Supralevator abscess
  • K63.0 — Abscess of intestine
  • K65.0 — Generalized (acute) peritonitis
  • K65.1 — Peritoneal abscess
  • K65.2 — Spontaneous bacterial peritonitis
  • K65.3 — Choleperitonitis
  • K65.4 — Sclerosing mesenteritis
  • K65.8 — Other peritonitis
  • K65.9 — Peritonitis, unspecified
  • K67 — Disorders of peritoneum in infectious diseases classified elsewhere
  • K68.11 — Postprocedural retroperitoneal abscess
  • K68.12 — Psoas muscle abscess
  • K68.19 — Other retroperitoneal abscess
  • K75.0 — Abscess of liver

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, Rockville, MD. All data sources.