K20.0
✓ Billable
Eosinophilic esophagitis
ICD-10-CM · FY2026 · Diseases of the Digestive System
Code
K20.0
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Digestive System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code K20.0?
ICD-10-CM code K20.0 represents Eosinophilic esophagitis. It is a billable diagnosis code in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.
Is K20.0 billable?
Yes. K20.0 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is K20.0 in?
K20.0 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.
Related codes in the K20 category
K20
Esophagitis
Non-billable
K20.8
Other esophagitis
Non-billable
K20.9
Esophagitis, unspecified
Non-billable
K20.80
Other esophagitis without bleeding
Billable
K20.81
Other esophagitis with bleeding
Billable
K20.90
Esophagitis, unspecified without bleeding
Billable
K20.91
Esophagitis, unspecified with bleeding
Billable
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