ICD-10-CM category
K29 Gastritis and duodenitis
K29 is a category, not a billable code. Report one of the 18 complete codes below.
Codes in K29
- K29.00Acute gastritis without bleeding
- K29.01Acute gastritis with bleeding
- K29.20Alcoholic gastritis without bleeding
- K29.21Alcoholic gastritis with bleeding
- K29.30Chronic superficial gastritis without bleeding
- K29.31Chronic superficial gastritis with bleeding
- K29.40Chronic atrophic gastritis without bleeding
- K29.41Chronic atrophic gastritis with bleeding
- K29.50Unspecified chronic gastritis without bleeding
- K29.51Unspecified chronic gastritis with bleeding
- K29.60Other gastritis without bleeding
- K29.61Other gastritis with bleeding
- K29.70Gastritis, unspecified, without bleeding
- K29.71Gastritis, unspecified, with bleeding
- K29.80Duodenitis without bleeding
- K29.81Duodenitis with bleeding
- K29.90Gastroduodenitis, unspecified, without bleeding
- K29.91Gastroduodenitis, unspecified, with bleeding
Outside the US? K29 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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