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.
521 to 560 of 1,117
- K51.01Ulcerative (chronic) pancolitis with complicationsHeader
- K51.011Ulcerative (chronic) pancolitis with rectal bleedingBillable
- K51.012Ulcerative (chronic) pancolitis with intestinal obstructionBillable
- K51.013Ulcerative (chronic) pancolitis with fistulaBillable
- K51.014Ulcerative (chronic) pancolitis with abscessBillable
- K51.018Ulcerative (chronic) pancolitis with other complicationBillable
- K51.019Ulcerative (chronic) pancolitis with unspecified complicationsBillable
- K51.2Ulcerative (chronic) proctitisHeader
- K51.20Ulcerative (chronic) proctitis without complicationsBillable
- K51.21Ulcerative (chronic) proctitis with complicationsHeader
- K51.211Ulcerative (chronic) proctitis with rectal bleedingBillable
- K51.212Ulcerative (chronic) proctitis with intestinal obstructionBillable
- K51.213Ulcerative (chronic) proctitis with fistulaBillable
- K51.214Ulcerative (chronic) proctitis with abscessBillable
- K51.218Ulcerative (chronic) proctitis with other complicationBillable
- K51.219Ulcerative (chronic) proctitis with unspecified complicationsBillable
- K51.3Ulcerative (chronic) rectosigmoiditisHeader
- K51.30Ulcerative (chronic) rectosigmoiditis without complicationsBillable
- K51.31Ulcerative (chronic) rectosigmoiditis with complicationsHeader
- K51.311Ulcerative (chronic) rectosigmoiditis with rectal bleedingBillable
- K51.312Ulcerative (chronic) rectosigmoiditis with intestinal obstBillable
- K51.313Ulcerative (chronic) rectosigmoiditis with fistulaBillable
- K51.314Ulcerative (chronic) rectosigmoiditis with abscessBillable
- K51.318Ulcerative (chronic) rectosigmoiditis with other complicationBillable
- K51.319Ulcerative (chronic) rectosigmoiditis with unspecified complicationsBillable
- K51.4Inflammatory polyps of colonHeader
- K51.40Inflammatory polyps of colon without complicationsBillable
- K51.41Inflammatory polyps of colon with complicationsHeader
- K51.411Inflammatory polyps of colon with rectal bleedingBillable
- K51.412Inflammatory polyps of colon with intestinal obstructionBillable
- K51.413Inflammatory polyps of colon with fistulaBillable
- K51.414Inflammatory polyps of colon with abscessBillable
- K51.418Inflammatory polyps of colon with other complicationBillable
- K51.419Inflammatory polyps of colon with unspecified complicationsBillable
- K51.5Left sided colitisHeader
- K51.50Left sided colitis without complicationsBillable
- K51.51Left sided colitis with complicationsHeader
- K51.511Left sided colitis with rectal bleedingBillable
- K51.512Left sided colitis with intestinal obstructionBillable
- K51.513Left sided colitis with fistulaBillable