Corrosion of esophagus, sequela

This code signifies the long-term or late effects resulting from a corrosive injury to the esophagus. It indicates that the acute phase of the burn has passed, but the patient continues to experience residual problems such as strictures, dysphagia, or other permanent damage.

Use this code when documenting conditions that are a direct consequence of a past corrosive ingestion or exposure affecting the esophagus, even if the original injury occurred months or years prior. This applies when the patient is being treated for the chronic complications rather than the acute injury itself.

• Always sequence this code after the code for the specific sequela (e.g., esophageal stricture).
• Ensure documentation clearly links the current condition to a past corrosive esophageal injury.
• Do not use this code for acute corrosive burns; refer to the acute T28.x codes for initial encounters.