9. DISEASES OF THE DIGESTIVE SYSTEM (520-579)
OTHER DISEASES OF INTESTINES AND PERITONEUM (560-569)
560: Intestinal obstruction without mention of hernia
Excludes:
duodenum (537.2-537.3)
inguinal hernia with obstruction (550.1)
intestinal obstruction complicating hernia (552.0-552.9)
mesenteric:
embolism (557.0)
infarction (557.0)
thrombosis (557.0)
neonatal intestinal obstruction (277.01, 777.1-777.2, 777.4)
562: Diverticula of intestine
Use additional code to identify any associated:
peritonitis (567.0-567.9)
Excludes:
congenital diverticulum of colon (751.5)
diverticulum of appendix (543.9)
Meckel's diverticulum (751.0)
564: Functional digestive disorders, not elsewhere classified
Excludes:
functional disorders of stomach (536.0-536.9)
those specified as psychogenic (306.4)
565: Anal fissure and fistula
566: Abscess of anal and rectal regions
Abscess:
ischiorectal
perianal
perirectal
Cellulitis:
anal
perirectal
rectal
Ischiorectal fistula
567: Peritonitis and retroperitoneal infections
Excludes:
peritonitis:
benign paroxysmal (277.31)
pelvic, female (614.5, 614.7)
periodic familial (277.31)
puerperal (670.8)
with or following:
abortion (634-638 with.0, 639.0)
appendicitis (540.0-540.1)
ectopic or molar pregnancy (639.0)
568: Other disorders of peritoneum
569: Other disorders of intestine

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