ICD-10-CM · Chapter 11 · K00-K95
K23 Disorders of esophagus in diseases classified elsewhere
Excludes 1 (cannot be coded together)
- late syphilis (A52.79)
- megaesophagus due to Chagas' disease (B57.31)
- tuberculosis (A18.83)
Code First
- underlying disease, such as:
- congenital syphilis (A50.5)
This category is a complete, billable diagnosis code.
No additional specificity is required — submit K23 directly on claims and documentation without a subcode extension.
Last reviewed: September 2026