Corrosion of third degree of left foot, sequela

This code signifies a third-degree corrosion injury affecting the left foot, indicating full-thickness tissue destruction. Corrosion injuries are caused by chemical agents, leading to severe damage to the skin and underlying tissues. The "S" in the code denotes that this is a sequela, meaning it represents a complication or residual effect of a previous corrosion injury.

Use this code when documenting a long-term complication, scar, or other residual condition directly resulting from a third-degree chemical burn to the left foot. This applies to follow-up encounters after the initial acute injury has healed but continues to cause ongoing issues. Examples include chronic pain, contractures, or non-healing ulcers stemming from the original corrosion.

• Assign this code for conditions that are a direct consequence of a past third-degree corrosion of the left foot, not for the initial acute injury.
• Always sequence this sequela code after the code(s) for the specific residual condition being treated (e.g., scar, contracture).
• Ensure documentation clearly links the current condition to a previous third-degree chemical burn of the left foot.