Diagnosis Codes Index - Diseases of the digestive system
ICD-9 Index
Diseases of the digestive system (520–579)
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