K22.1Header code — not billable

Ulcer of esophagus

Chapter
11. Diseases of the digestive system
Category
K22
Effective date
October 1, 2026

Related codes in category K22

Frequently asked questions

What is ICD-10 code K22.1?

K22.1 is an ICD-10-CM diagnosis code for Ulcer of esophagus.

Is K22.1 a billable code?

No. K22.1 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is K22.1 in?

K22.1 falls under Chapter 11: Diseases of the digestive system.

When did K22.1 become effective?

K22.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to K22.1?

K22.1 belongs to category K22, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.