K20.0

Clinical Information

• Allergic inflammation of the esophagus. Morphologically, it is characterized by the presence of eosinophils infiltrating the esophageal epithelium. Patients present with swallowing difficulty and heartburn.

• Chronic esophagitis characterized by esophageal mucosal eosinophilia. It is diagnosed when an increase in eosinophils are present over the entire esophagus. The reflux symptoms fail to respond to proton pump inhibitors treatment, unlike in gastroesophageal reflux disease. The symptoms are associated with ige-mediated hypersensitivity to food or inhalant allergens.

Details

• K20.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM K20.0 became effective on October 1, 2022.

• This is the American ICD-10-CM version of K20.0 – other international versions of ICD-10 K20.0 may differ.