Corrosion of second degree of unspecified thigh, sequela

This code indicates a second-degree burn injury to an unspecified area of the thigh, where the acute phase of the injury has passed, and the patient is now experiencing a long-term complication or residual effect. Second-degree burns involve the epidermis and part of the dermis, characterized by blistering, pain, and redness.

Use this code when documenting a follow-up encounter for a patient with a permanent scar, contracture, chronic pain, or other lasting consequence resulting from a second-degree burn on the thigh. This code is appropriate for situations where the initial burn has healed, but ongoing medical attention is required for its sequelae.

• Always assign an external cause code (V00-Y99) to describe the circumstances of the burn injury.
• Ensure the documentation clearly specifies "second degree" and "thigh" for accurate code selection.
• The "S" seventh character indicates a sequela, meaning it should only be used for complications or conditions arising as a direct result of a previous injury, after the acute phase has concluded.