Corrosion of esophagus, subsequent encounter

This code signifies a chemical burn to the esophagus that is being treated after the initial encounter. It indicates that the patient is receiving follow-up care for the corrosive injury, which could involve monitoring, medication adjustments, or further interventions.

Use this code for patients presenting for ongoing management of esophageal corrosion, such as follow-up appointments after initial hospitalization, repeat endoscopies to assess healing, or treatment for complications like stricture formation. It is appropriate when the patient is no longer in the acute phase of the injury.

• Ensure the encounter is for follow-up care, not the initial treatment of the corrosion.
• Always sequence this code after the primary diagnosis if the corrosion is a secondary condition.
• Consider additional codes for any associated complications, such as esophageal stricture (K22.2).