Chapter 11
Diseases of the digestive system
K00–K95
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FY 2027 effective October 1, 2026 · 73 categories in this chapter
Blocks in This Chapter
ICD-10-CM groups this chapter's categories into 10 blocks of three-character categories.
- K00 –K14 Diseases of oral cavity and salivary glands
- K20 –K31 Diseases of esophagus, stomach and duodenum
- K35 –K38 Diseases of appendix
- K40 –K46 Hernia
- K50 –K52 Noninfective enteritis and colitis
- K55 –K64 Other diseases of intestines
- K65 –K6A Diseases of peritoneum, retroperitoneum and pelvis
- K70 –K77 Diseases of liver
- K80 –K87 Disorders of gallbladder, biliary tract and pancreas
- K90 –K95 Other diseases of the digestive system
Categories
Diseases of oral cavity and salivary glands (K00-K14)
- K00 Disorders of tooth development and eruption Has subcategories
- K01 Embedded and impacted teeth Has subcategories
- K02 Dental caries Has subcategories
- K03 Other diseases of hard tissues of teeth Has subcategories
- K04 Diseases of pulp and periapical tissues Has subcategories
- K05 Gingivitis and periodontal diseases Has subcategories
- K06 Other disorders of gingiva and edentulous alveolar ridge Has subcategories
- K08 Other disorders of teeth and supporting structures Has subcategories
- K09 Cysts of oral region, not elsewhere classified Has subcategories
- K11 Diseases of salivary glands Has subcategories
- K12 Stomatitis and related lesions Has subcategories
- K13 Other diseases of lip and oral mucosa Has subcategories
- K14 Diseases of tongue Has subcategories
Diseases of esophagus, stomach and duodenum (K20-K31)
- K20 Esophagitis Has subcategories
- K21 Gastro-esophageal reflux disease Has subcategories
- K22 Other diseases of esophagus Has subcategories
- K23 Disorders of esophagus in diseases classified elsewhere
- K25 Gastric ulcer Has subcategories
- K26 Duodenal ulcer Has subcategories
- K27 Peptic ulcer, site unspecified Has subcategories
- K28 Gastrojejunal ulcer Has subcategories
- K29 Gastritis and duodenitis Has subcategories
- K30 Functional dyspepsia
- K31 Other diseases of stomach and duodenum Has subcategories
Diseases of appendix (K35-K38)
Hernia (K40-K46)
Noninfective enteritis and colitis (K50-K52)
Other diseases of intestines (K55-K64)
- K55 Vascular disorders of intestine Has subcategories
- K56 Paralytic ileus and intestinal obstruction without hernia Has subcategories
- K57 Diverticular disease of intestine Has subcategories
- K58 Irritable bowel syndrome Has subcategories
- K59 Other functional intestinal disorders Has subcategories
- K60 Fissure and fistula of anal and rectal regions Has subcategories
- K61 Abscess of anal and rectal regions Has subcategories
- K62 Other diseases of anus and rectum Has subcategories
- K63 Other diseases of intestine Has subcategories
- K64 Hemorrhoids and perianal venous thrombosis Has subcategories
Diseases of peritoneum, retroperitoneum and pelvis (K65-K6A)
Diseases of liver (K70-K77)
- K70 Alcoholic liver disease Has subcategories
- K71 Toxic liver disease Has subcategories
- K72 Hepatic failure, not elsewhere classified Has subcategories
- K73 Chronic hepatitis, not elsewhere classified Has subcategories
- K74 Fibrosis and cirrhosis of liver Has subcategories
- K75 Other inflammatory liver diseases Has subcategories
- K76 Other diseases of liver Has subcategories
- K77 Liver disorders in diseases classified elsewhere
Disorders of gallbladder, biliary tract and pancreas (K80-K87)
- K80 Cholelithiasis Has subcategories
- K81 Cholecystitis Has subcategories
- K82 Other diseases of gallbladder Has subcategories
- K83 Other diseases of biliary tract Has subcategories
- K85 Acute pancreatitis Has subcategories
- K86 Other diseases of pancreas Has subcategories
- K87 Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere
Other diseases of the digestive system (K90-K95)
- K90 Intestinal malabsorption Has subcategories
- K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified Has subcategories
- K92 Other diseases of digestive system Has subcategories
- K94 Complications of artificial openings of the digestive system Has subcategories
- K95 Complications of bariatric procedures Has subcategories