Diseases of the digestive system

  • Diseases of oral cavity, salivary glands, and jaws (520-529)

    • 520 Disorders of tooth development and eruption
    • 521 Diseases of hard tissues of teeth
    • 522 Diseases of pulp and periapical tissues
    • 523 Gingival and periodontal diseases
    • 524 Dentofacial anomalies, including malocclusion
    • 525 Other diseases and conditions of the teeth and supporting structures
    • 526 Diseases of the jaws
    • 527 Diseases of the salivary glands
    • 528 Diseases of the oral soft tissues, excluding lesions specific for gingiva and tongue
    • 529 Diseases and other conditions of the tongue

  • Diseases of esophagus, stomach, and duodenum (530-539)

    • 530 Diseases of esophagus
    • 531 Gastric ulcer
    • 532 Duodenal ulcer
    • 533 Peptic ulcer, site unspecified
    • 534 Gastrojejunal ulcer
    • 535 Gastritis and duodenitis
    • 536 Disorders of function of stomach
    • 537 Other disorders of stomach and duodenum
    • 538 Gastrointestinal mucositis (ulcerative)
    • 539 Complications of bariatric procedures

  • Appendicitis (540-543)

    • 540 Acute appendicitis
    • 541 Appendicitis, unqualified
    • 542 Other appendicitis
    • 543 Other diseases of appendix

  • Hernia of abdominal cavity (550-553)

    • 550 Inguinal hernia
    • 551 Other hernia of abdominal cavity, with gangrene
    • 552 Other hernia of abdominal cavity, with obstruction, but without mention of gangrene
    • 553 Other hernia of abdominal cavity without mention of obstruction or gangrene

  • Noninfective enteritis and colitis (555-558)

    • 555 Regional enteritis
    • 556 Ulcerative colitis
    • 557 Vascular insufficiency of intestine
    • 558 Other noninfective gastroenteritis and colitis

  • Other diseases of intestines and peritoneum (560-569)

    • 560 Intestinal obstruction without mention of hernia
    • 562 Diverticula of intestine
    • 564 Functional digestive disorders, not elsewhere classified
    • 565 Anal fissure and fistula
    • 566 Abscess of anal and rectal regions
    • 567 Peritonitis
    • 568 Other disorders of peritoneum
    • 569 Other disorders of intestine

  • Other diseases of digestive system (570-579)

    • 570 Acute and subacute necrosis of liver
    • 571 Chronic liver disease and cirrhosis
    • 572 Liver abscess and sequelae of chronic liver disease
    • 573 Other disorders of liver
    • 574 Cholelithiasis
    • 575 Other disorders of gallbladder
    • 576 Other disorders of biliary tract
    • 577 Diseases of pancreas
    • 578 Gastrointestinal hemorrhage
    • 579 Intestinal malabsorption