• Diseases of the digestive system

      • 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
      • 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
      • 540 Acute appendicitis
      • 541 Appendicitis, unqualified
      • 542 Other appendicitis
      • 543 Other diseases of appendix
      • 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
      • 555 Regional enteritis
      • 556 Ulcerative colitis
      • 557 Vascular insufficiency of intestine
      • 558 Other noninfective gastroenteritis and colitis
      • 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
      • 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