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K29

⚠ Non-billable (Header)

Gastritis and duodenitis

Diseases of the digestive system (K00-K95)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with K29

  • • eosinophilic gastritis or gastroenteritis (K52.81)
  • • Zollinger-Ellison syndrome (E16.4)

Child Codes (9)

K29.0Acute gastritisK29.2Alcoholic gastritisK29.3Chronic superficial gastritisK29.4Chronic atrophic gastritisK29.5Unspecified chronic gastritisK29.6Other gastritisK29.7Gastritis, unspecifiedK29.8DuodenitisK29.9Gastroduodenitis, unspecified

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Code Information

CodeK29
BillableNo — Header code
CategoryDiseases of the digestive system (K00-K95)
Excludes12 rule(s)
Excludes20 note(s)
Child codes9

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)