K20-K31
Diseases of esophagus, stomach and duodenum
Diseases of esophagus, stomach and duodenum (K20-K31) is a block within ICD-10-CM Chapter 11: Diseases of the digestive system. It holds 11 categories.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- hiatus hernia (K44.-)
Categories in K20-K31
- K20Esophagitiscategory
- K21Gastro-esophageal reflux diseasecategory
- K22Other diseases of esophaguscategory
- K23Disorders of esophagus in diseases classified elsewhere
- K25Gastric ulcercategory
- K26Duodenal ulcercategory
- K27Peptic ulcer, site unspecifiedcategory
- K28Gastrojejunal ulcercategory
- K29Gastritis and duodenitiscategory
- K30Functional dyspepsia
- K31Other diseases of stomach and duodenumcategory
Source
ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.