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K23 — Disorders of esophagus in diseases classified elsewhere

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

Official Notes

Code First

underlying disease, such as:

Code First

congenital syphilis ( A50.5 )

Excludes1

late syphilis ( A52.79 )

Excludes1

megaesophagus due to Chagas' disease ( B57.31 )

Excludes1

tuberculosis ( A18.83 )

Child Codes

K23 has no child codes in the FY 2027 release -- it is used on its own.

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