K22.1

⚠ Non-billable (Header)

Ulcer of esophagus

Diseases of the digestive system (K00-K95)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Also Known As

Barrett's ulcerErosion of esophagusFungal ulcer of esophagusPeptic ulcer of esophagusUlcer of esophagus due to ingestion of chemicalsUlcer of esophagus due to ingestion of drugs and medicamentsUlcerative esophagitis

📋 Code Instructions

• code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
• Code first: poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4)

❌ Excludes1

direct

Cannot be coded with K22.1

• Barrett's esophagus (K22.7-)

⚠️ Excludes2

inherited from K22

Rules from parent category K22: Other diseases of esophagus

• esophageal varices (I85.-)

Child Codes (2)

K22.10Ulcer of esophagus without bleeding✓ Billable K22.11Ulcer of esophagus with bleeding✓ Billable

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Code Information

CodeK22.1

BillableNo — Header code

ParentK22

CategoryDiseases of the digestive system (K00-K95)

Excludes11 rule(s)

Excludes21 note(s)

Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)