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K22.1

Non-billable

Ulcer of esophagus

K22.1 is the ICD-10-CM code for Ulcer of esophagus. It is a non-billable category code — use a more specific child code such as K22.10 for billing.

Status
Header (non-billable)
Chapter
K00-K95
Parent
K22
Subcodes
2
Edition
FY2026

K00-K95 Diseases of the digestive system

Includes

  • •Barrett's ulcer
  • •Erosion of esophagus
  • •Fungal ulcer of esophagus
  • •Peptic ulcer of esophagus
  • •Ulcer of esophagus due to ingestion of chemicals
  • •Ulcer of esophagus due to ingestion of drugs and medicaments
  • •Ulcerative esophagitis

Excludes1 — not coded here

  • •Barrett's esophagus (K22.7-)

Code first

  • •poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

Use additional code

  • •code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Frequently asked questions

What is ICD-10 code K22.1?
K22.1 is the ICD-10-CM code for "Ulcer of esophagus". It falls under K00-K95 Diseases of the digestive system.
Is K22.1 a billable code?
No — K22.1 is a non-billable header code. Use a more specific child code (such as K22.10) for billing.
What are the subcodes of K22.1?
K22.1 has 2 more specific child codes, including K22.10, K22.11.
What is excluded from K22.1?
Excludes1 (not coded here): Barrett's esophagus (K22.7-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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