ICD-10 Code K20.8 – Other esophagitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K20.8 – Other esophagitis
What it is
K20.8 identifies esophagitis that is not classified elsewhere. Use it for inflammation of the esophagus when the record does not support a more specific esophagitis type.
Clinical signs
Common findings include painful swallowing, difficulty swallowing, chest discomfort, or reflux-related irritation. Clinical features vary; refer to documentation.
When to use this code
Use K20.8 when the provider documents esophagitis but does not specify reflux, eosinophilic, infectious, or other named causes. It also fits nonspecific esophageal inflammation when the note supports esophagitis without a more precise subtype. Check documentation if the cause is stated elsewhere.
Do not use for
Do not use this code when the record clearly identifies reflux esophagitis, eosinophilic esophagitis, or another specific esophageal disorder. Do not assign it for symptoms alone without a diagnosis.
Coding tip
Review the full note for a more specific esophagitis type before defaulting to K20.8.