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K29.8

⚠ Non-billable (Header)

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

inherited from K29

Rules from parent category K29: Gastritis and duodenitis

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

Child Codes (2)

K29.80Duodenitis without bleedingK29.81Duodenitis with bleeding

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Code Information

CodeK29.8
BillableNo — Header code
ParentK29
CategoryDiseases of the digestive system (K00-K95)
Excludes12 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)