Diseases of the digestive system
Chapter 11 of the ICD-10-CM Tabular List covers K00-K95 and contains 1,117 codes across 73 categories, of which 863 are billable for FY2027.
Excludes2 — not included here
The conditions below are not part of this code, but a patient may have both at the same time. When documentation supports it, this code and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
K00-K14 — Diseases of oral cavity and salivary glands
- K00Disorders of tooth development and eruption
- K01Embedded and impacted teeth
- K02Dental caries
- K03Other diseases of hard tissues of teeth
- K04Diseases of pulp and periapical tissues
- K05Gingivitis and periodontal diseases
- K06Other disorders of gingiva and edentulous alveolar ridge
- K08Other disorders of teeth and supporting structures
- K09Cysts of oral region, not elsewhere classified
- K11Diseases of salivary glands
- K12Stomatitis and related lesions
- K13Other diseases of lip and oral mucosa
- K14Diseases of tongue
K20-K31 — Diseases of esophagus, stomach and duodenum
- K20Esophagitis
- K21Gastro-esophageal reflux disease
- K22Other diseases of esophagus
- K23Disorders of esophagus in diseases classified elsewhere
- K25Gastric ulcer
- K26Duodenal ulcer
- K27Peptic ulcer, site unspecified
- K28Gastrojejunal ulcer
- K29Gastritis and duodenitis
- K30Functional dyspepsia
- K31Other diseases of stomach and duodenum
K35-K38 — Diseases of appendix
K40-K46 — Hernia
K50-K52 — Noninfective enteritis and colitis
K55-K64 — Other diseases of intestines
- K55Vascular disorders of intestine
- K56Paralytic ileus and intestinal obstruction without hernia
- K57Diverticular disease of intestine
- K58Irritable bowel syndrome
- K59Other functional intestinal disorders
- K60Fissure and fistula of anal and rectal regions
- K61Abscess of anal and rectal regions
- K62Other diseases of anus and rectum
- K63Other diseases of intestine
- K64Hemorrhoids and perianal venous thrombosis