• K55 Vascular disorders of intestine
  • K56 Paralytic ileus and intestinal obstruction without hernia
  • K57 Diverticular disease of intestine
  • K58 Irritable bowel syndrome
  • K59 Other functional intestinal disorders
  • K60 Fissure and fistula of anal and rectal regions
  • K61 Abscess of anal and rectal regions
  • K62 Other diseases of anus and rectum
  • K63 Other diseases of intestine
  • K64 Hemorrhoids and perianal venous thrombosis