Chapter 11: Diseases of the digestive system
303 billable codes (3-4 characters)
K00.0 Anodontia K00.1 Supernumerary teeth K00.2 Abnormalities of size and form of teeth K00.3 Mottled teeth K00.4 Disturbances in tooth formation K00.5 Hereditary disturbances in tooth structure, NEC K00.6 Disturbances in tooth eruption K00.7 Teething syndrome K00.8 Other disorders of tooth development K00.9 Disorder of tooth development, unspecified K01.0 Embedded teeth K01.1 Impacted teeth K02.3 Arrested dental caries K02.7 Dental root caries K02.9 Dental caries, unspecified K03.0 Excessive attrition of teeth K03.1 Abrasion of teeth K03.2 Erosion of teeth K03.3 Pathological resorption of teeth K03.4 Hypercementosis K03.5 Ankylosis of teeth K03.6 Deposits [accretions] on teeth K03.7 Posteruptive color changes of dental hard tissues K03.9 Disease of hard tissues of teeth, unspecified K04.1 Necrosis of pulp K04.2 Pulp degeneration K04.3 Abnormal hard tissue formation in pulp K04.4 Acute apical periodontitis of pulpal origin K04.5 Chronic apical periodontitis K04.6 Periapical abscess with sinus K04.7 Periapical abscess without sinus K04.8 Radicular cyst K05.4 Periodontosis K05.5 Other periodontal diseases K05.6 Periodontal disease, unspecified K06.1 Gingival enlargement K06.2 Gingival & edentulous alveolar ridge lesions assoc w trauma K06.3 Horizontal alveolar bone loss K06.8 Oth disrd of gingiva and edentulous alveolar ridge K06.9 Disorder of gingiva and edentulous alveolar ridge, unsp K08.0 Exfoliation of teeth due to systemic causes K08.3 Retained dental root K08.9 Disorder of teeth and supporting structures, unspecified K09.0 Developmental odontogenic cysts K09.1 Developmental (nonodontogenic) cysts of oral region K09.8 Other cysts of oral region, not elsewhere classified K09.9 Cyst of oral region, unspecified K11.0 Atrophy of salivary gland K11.1 Hypertrophy of salivary gland K11.3 Abscess of salivary gland K11.4 Fistula of salivary gland K11.5 Sialolithiasis K11.6 Mucocele of salivary gland K11.7 Disturbances of salivary secretion K11.8 Other diseases of salivary glands K11.9 Disease of salivary gland, unspecified K12.0 Recurrent oral aphthae K12.1 Other forms of stomatitis K12.2 Cellulitis and abscess of mouth K13.0 Diseases of lips K13.1 Cheek and lip biting K13.3 Hairy leukoplakia K13.4 Granuloma and granuloma-like lesions of oral mucosa K13.5 Oral submucous fibrosis K13.6 Irritative hyperplasia of oral mucosa K14.0 Glossitis K14.1 Geographic tongue K14.2 Median rhomboid glossitis K14.3 Hypertrophy of tongue papillae K14.4 Atrophy of tongue papillae K14.5 Plicated tongue K14.6 Glossodynia K14.8 Other diseases of tongue K14.9 Disease of tongue, unspecified K20.0 Eosinophilic esophagitis K21.9 Gastro-esophageal reflux disease without esophagitis K22.0 Achalasia of cardia K22.2 Esophageal obstruction K22.3 Perforation of esophagus K22.4 Dyskinesia of esophagus K22.5 Diverticulum of esophagus, acquired K22.6 Gastro-esophageal laceration-hemorrhage syndrome K22.9 Disease of esophagus, unspecified K23 Disorders of esophagus in diseases classified elsewhere K25.0 Acute gastric ulcer with hemorrhage K25.1 Acute gastric ulcer with perforation K25.2 Acute gastric ulcer with both hemorrhage and perforation K25.3 Acute gastric ulcer without hemorrhage or perforation K25.4 Chronic or unspecified gastric ulcer with hemorrhage K25.5 Chronic or unspecified gastric ulcer with perforation K25.6 Chronic or unsp gastric ulcer w both hemorrhage and perf K25.7 Chronic gastric ulcer without hemorrhage or perforation K25.9 Gastric ulcer, unsp as acute or chronic, w/o hemor or perf K26.0 Acute duodenal ulcer with hemorrhage K26.1 Acute duodenal ulcer with perforation K26.2 Acute duodenal ulcer with both hemorrhage and perforation K26.3 Acute duodenal ulcer without hemorrhage or perforation K26.4 Chronic or unspecified duodenal ulcer with hemorrhage K26.5 Chronic or unspecified duodenal ulcer with perforation K26.6 Chronic or unsp duodenal ulcer w both hemorrhage and perf K26.7 Chronic duodenal ulcer without hemorrhage or perforation K26.9 Duodenal ulcer, unsp as acute or chronic, w/o hemor or perf K27.0 Acute peptic ulcer, site unspecified, with hemorrhage K27.1 Acute peptic ulcer, site unspecified, with perforation K27.2 Acute peptic ulcer, site unsp, w both hemorrhage and perf K27.3 Acute peptic ulcer, site unsp, w/o hemorrhage or perforation K27.4 Chronic or unsp peptic ulcer, site unsp, with hemorrhage K27.5 Chronic or unsp peptic ulcer, site unsp, with perforation K27.6 Chr or unsp peptic ulcer, site unsp, w both hemor and perf K27.7 Chronic peptic ulcer, site unsp, w/o hemorrhage or perf K27.9 Peptic ulc, site unsp, unsp as ac or chr, w/o hemor or perf K28.0 Acute gastrojejunal ulcer with hemorrhage K28.1 Acute gastrojejunal ulcer with perforation K28.2 Acute gastrojejunal ulcer w both hemorrhage and perforation K28.3 Acute gastrojejunal ulcer without hemorrhage or perforation K28.4 Chronic or unspecified gastrojejunal ulcer with hemorrhage K28.5 Chronic or unspecified gastrojejunal ulcer with perforation K28.6 Chronic or unsp gastrojejunal ulcer w both hemor and perf K28.7 Chronic gastrojejunal ulcer w/o hemorrhage or perforation K28.9 Gastrojejunal ulcer, unsp as acute or chr, w/o hemor or perf K30 Functional dyspepsia K31.0 Acute dilatation of stomach K31.1 Adult hypertrophic pyloric stenosis K31.B Hypertrophic pyloric stenosis, in childhood K31.2 Hourglass stricture and stenosis of stomach K31.3 Pylorospasm, not elsewhere classified K31.4 Gastric diverticulum K31.5 Obstruction of duodenum K31.6 Fistula of stomach and duodenum K31.7 Polyp of stomach and duodenum K31.9 Disease of stomach and duodenum, unspecified K36 Other appendicitis K37 Unspecified appendicitis K38.0 Hyperplasia of appendix K38.1 Appendicular concretions K38.2 Diverticulum of appendix K38.3 Fistula of appendix K38.8 Other specified diseases of appendix K38.9 Disease of appendix, unspecified K42.0 Umbilical hernia with obstruction, without gangrene K42.1 Umbilical hernia with gangrene K42.9 Umbilical hernia without obstruction or gangrene K43.0 Incisional hernia with obstruction, without gangrene K43.1 Incisional hernia with gangrene K43.2 Incisional hernia without obstruction or gangrene K43.3 Parastomal hernia with obstruction, without gangrene K43.4 Parastomal hernia with gangrene K43.5 Parastomal hernia without obstruction or gangrene K43.6 Other and unsp ventral hernia with obstruction, w/o gangrene K43.7 Other and unspecified ventral hernia with gangrene K43.9 Ventral hernia without obstruction or gangrene K44.0 Diaphragmatic hernia with obstruction, without gangrene K44.1 Diaphragmatic hernia with gangrene K44.9 Diaphragmatic hernia without obstruction or gangrene K45.0 Oth abdominal hernia with obstruction, without gangrene K45.1 Other specified abdominal hernia with gangrene K45.8 Oth abdominal hernia without obstruction or gangrene K46.0 Unsp abdominal hernia with obstruction, without gangrene K46.1 Unspecified abdominal hernia with gangrene K46.9 Unspecified abdominal hernia without obstruction or gangrene K52.0 Gastroenteritis and colitis due to radiation K52.1 Toxic gastroenteritis and colitis K52.3 Indeterminate colitis K52.9 Noninfective gastroenteritis and colitis, unspecified K55.1 Chronic vascular disorders of intestine K55.8 Other vascular disorders of intestine K55.9 Vascular disorder of intestine, unspecified K56.0 Paralytic ileus K56.1 Intussusception K56.2 Volvulus K56.3 Gallstone ileus K56.7 Ileus, unspecified K58.0 Irritable bowel syndrome with diarrhea K58.1 Irritable bowel syndrome with constipation K58.2 Mixed irritable bowel syndrome K58.8 Other irritable bowel syndrome K58.9 Irritable bowel syndrome, unspecified K59.1 Functional diarrhea K59.2 Neurogenic bowel, not elsewhere classified K59.4 Anal spasm K59.9 Functional intestinal disorder, unspecified K60.0 Acute anal fissure K60.1 Chronic anal fissure K60.2 Anal fissure, unspecified K61.0 Anal abscess K61.1 Rectal abscess K61.2 Anorectal abscess K61.4 Intrasphincteric abscess K61.5 Supralevator abscess K62.0 Anal polyp K62.1 Rectal polyp K62.2 Anal prolapse K62.3 Rectal prolapse K62.4 Stenosis of anus and rectum K62.5 Hemorrhage of anus and rectum K62.6 Ulcer of anus and rectum K62.7 Radiation proctitis K62.9 Disease of anus and rectum, unspecified K63.0 Abscess of intestine K63.1 Perforation of intestine (nontraumatic) K63.2 Fistula of intestine K63.3 Ulcer of intestine K63.4 Enteroptosis K63.5 Polyp of colon K63.9 Disease of intestine, unspecified K64.0 First degree hemorrhoids K64.1 Second degree hemorrhoids K64.2 Third degree hemorrhoids K64.3 Fourth degree hemorrhoids K64.4 Residual hemorrhoidal skin tags K64.5 Perianal venous thrombosis K64.8 Other hemorrhoids K64.9 Unspecified hemorrhoids K65.0 Generalized (acute) peritonitis K65.1 Peritoneal abscess K65.2 Spontaneous bacterial peritonitis K65.3 Choleperitonitis K65.4 Sclerosing mesenteritis K65.8 Other peritonitis K65.9 Peritonitis, unspecified K6A.8 Other diseases of the pelvis, not elsewhere classified K66.0 Peritoneal adhesions (postprocedural) (postinfection) K66.1 Hemoperitoneum K66.8 Other specified disorders of peritoneum K66.9 Disorder of peritoneum, unspecified K67 Disorders of peritoneum in infectious diseases classd elswhr K68.2 Retroperitoneal fibrosis K68.3 Retroperitoneal hematoma K68.9 Other disorders of retroperitoneum K70.0 Alcoholic fatty liver K70.2 Alcoholic fibrosis and sclerosis of liver K70.9 Alcoholic liver disease, unspecified K71.0 Toxic liver disease with cholestasis K71.2 Toxic liver disease with acute hepatitis K71.3 Toxic liver disease with chronic persistent hepatitis K71.4 Toxic liver disease with chronic lobular hepatitis K71.6 Toxic liver disease with hepatitis, not elsewhere classified K71.7 Toxic liver disease with fibrosis and cirrhosis of liver K71.8 Toxic liver disease with other disorders of liver K71.9 Toxic liver disease, unspecified K73.0 Chronic persistent hepatitis, not elsewhere classified K73.1 Chronic lobular hepatitis, not elsewhere classified K73.2 Chronic active hepatitis, not elsewhere classified K73.8 Other chronic hepatitis, not elsewhere classified K73.9 Chronic hepatitis, unspecified K74.1 Hepatic sclerosis K74.2 Hepatic fibrosis with hepatic sclerosis K74.3 Primary biliary cirrhosis K74.4 Secondary biliary cirrhosis K74.5 Biliary cirrhosis, unspecified K75.0 Abscess of liver K75.1 Phlebitis of portal vein K75.2 Nonspecific reactive hepatitis K75.3 Granulomatous hepatitis, not elsewhere classified K75.4 Autoimmune hepatitis K75.9 Inflammatory liver disease, unspecified K76.0 Fatty (change of) liver, not elsewhere classified K76.1 Chronic passive congestion of liver K76.2 Central hemorrhagic necrosis of liver K76.3 Infarction of liver K76.4 Peliosis hepatis K76.5 Hepatic veno-occlusive disease K76.6 Portal hypertension K76.7 Hepatorenal syndrome K76.9 Liver disease, unspecified K77 Liver disorders in diseases classified elsewhere K81.0 Acute cholecystitis K81.1 Chronic cholecystitis K81.2 Acute cholecystitis with chronic cholecystitis K81.9 Cholecystitis, unspecified K82.0 Obstruction of gallbladder K82.1 Hydrops of gallbladder K82.2 Perforation of gallbladder K82.3 Fistula of gallbladder K82.4 Cholesterolosis of gallbladder K82.8 Other specified diseases of gallbladder K82.9 Disease of gallbladder, unspecified K83.1 Obstruction of bile duct K83.2 Perforation of bile duct K83.3 Fistula of bile duct K83.4 Spasm of sphincter of Oddi K83.5 Biliary cyst K83.8 Other specified diseases of biliary tract K83.9 Disease of biliary tract, unspecified K86.0 Alcohol-induced chronic pancreatitis K86.1 Other chronic pancreatitis K86.2 Cyst of pancreas K86.3 Pseudocyst of pancreas K86.9 Disease of pancreas, unspecified K87 Disord of GB, biliary trac and pancreas in dis classd elswhr K90.0 Celiac disease K90.1 Tropical sprue K90.2 Blind loop syndrome, not elsewhere classified K90.3 Pancreatic steatorrhea K90.9 Intestinal malabsorption, unspecified K91.0 Vomiting following gastrointestinal surgery K91.1 Postgastric surgery syndromes K91.2 Postsurgical malabsorption, not elsewhere classified K91.5 Postcholecystectomy syndrome K92.0 Hematemesis K92.1 Melena K92.2 Gastrointestinal hemorrhage, unspecified K92.9 Disease of digestive system, unspecified