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Current

K26 Duodenal ulcer

Part of Chapter 11: Diseases of the digestive system , block Diseases of esophagus, stomach and duodenum (K20-K31) .

Official Notes

Includes

erosion (acute) of duodenum

Includes

duodenum ulcer (peptic)

Includes

postpyloric ulcer (peptic)

Use Additional Code

code to identify:

Use Additional Code

alcohol abuse and dependence ( F10 .-)

Excludes1

peptic ulcer NOS ( K27 .-)

Child Codes

Referenced By

Official notes on these codes cite K26.

FY 2027 effective October 1, 2026 · CDC NCHS and CMS