Corrosion of first degree of lip(s), sequela

This code signifies a superficial burn injury to the lip(s) that has healed, but the patient is still experiencing residual effects or complications from that past injury. A first-degree corrosion involves only the outermost layer of skin, typically presenting with redness and mild pain without blistering. The "sequela" aspect indicates that the original acute injury is no longer active, but its long-term consequences are being addressed.

Use this code when documenting a patient presenting with a chronic issue directly attributable to a previously sustained first-degree chemical burn of the lip(s). This could include persistent discoloration, scarring, altered sensation, or functional impairment that is a direct result of the original injury. It is appropriate when the acute phase of the corrosion has passed, and the current encounter focuses on managing these lasting effects.

• Always ensure documentation clearly links the current condition to a past first-degree lip corrosion.
• Do not use this code for acute, active first-degree lip corrosions; a different code would be appropriate for the initial injury.
• The "S" in the 7th character indicates sequela and must always be used for conditions representing the late effects of an injury.