ICD-10-CM
Diseases of the digestive system
Chapter 11, K00-K95. CDC FY2027 file dated June 16, 2026.
License: a US government work, in the public domain (Public Domain Mark 1.0).
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Categories
73 categories in this chapter. Open one, or page through every code below.
- 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
- 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
- K35Acute appendicitis
- K36Other appendicitis
- K37Unspecified appendicitis
- K38Other diseases of appendix
- K40Inguinal hernia
- K41Femoral hernia
- K42Umbilical hernia
- K43Ventral hernia
- K44Diaphragmatic hernia
- K45Other abdominal hernia
- K46Unspecified abdominal hernia
- K50Crohn's disease [regional enteritis]
37 more categories are in this chapter. Type a code or a term to open one.
Codes
A header groups codes and is not billed. A billable code is one you can report.
361 to 400 of 1,117
- K31.3Pylorospasm, not elsewhere classifiedBillable
- K31.4Gastric diverticulumBillable
- K31.5Obstruction of duodenumBillable
- K31.6Fistula of stomach and duodenumBillable
- K31.7Polyp of stomach and duodenumBillable
- K31.8Other specified diseases of stomach and duodenumHeader
- K31.81Angiodysplasia of stomach and duodenumHeader
- K31.811Angiodysplasia of stomach and duodenum with bleedingBillable
- K31.819Angiodysplasia of stomach and duodenum without bleedingBillable
- K31.82Dieulafoy lesion (hemorrhagic) of stomach and duodenumBillable
- K31.83AchlorhydriaBillable
- K31.84GastroparesisBillable
- K31.89Other diseases of stomach and duodenumBillable
- K31.9Disease of stomach and duodenum, unspecifiedBillable
- K31.AGastric intestinal metaplasiaHeader
- K31.A0Gastric intestinal metaplasia, unspecifiedBillable
- K31.A1Gastric intestinal metaplasia without dysplasiaHeader
- K31.A11Gastric intestnl metaplasia without dysplasia, with the antrumBillable
- K31.A12Gastr intestnl metaplasia without dysplasia, with the body (corpus)Billable
- K31.A13Gastric intestnl metaplasia without dysplasia, with the fundusBillable
- K31.A14Gastric intestnl metaplasia without dysplasia, with the cardiaBillable
- K31.A15Gastric intestnl metaplasia without dysplasia, with multiple sitesBillable
- K31.A19Gastric intestinal metaplasia without dysplasia, unspecified siteBillable
- K31.A2Gastric intestinal metaplasia with dysplasiaHeader
- K31.A21Gastric intestinal metaplasia with low grade dysplasiaBillable
- K31.A22Gastric intestinal metaplasia with high grade dysplasiaBillable
- K31.A29Gastric intestinal metaplasia with dysplasia, unspecifiedBillable
- K35Acute appendicitisHeader
- K35.2Acute appendicitis with generalized peritonitisHeader
- K35.20Acute appendicitis with gen peritonitis, without abscessHeader
- K35.200Acute appendicitis with gen peritonitis, without perf or abscsBillable
- K35.201Ac appendicitis with gen peritonitis, with perf, without abscsBillable
- K35.209Ac appendicitis with gen peritonitis,without abscs,unspecified as to perfBillable
- K35.21Acute appendicitis with gen peritonitis, with abscessHeader
- K35.210Ac appendicitis with gen peritonitis, without perf, with abscsBillable
- K35.211Acute appendicitis with gen peritonitis, with perf and abscsBillable
- K35.219Ac appendicitis with gen peritonitis, with abscs, unspecified as to perfBillable
- K35.3Acute appendicitis with localized peritonitisHeader
- K35.30Acute appendicitis with loc peritonitis, without perf or gangrBillable
- K35.31Acute appendicitis with loc peritonitis and gangr, without perfBillable