Corrosion of third degree of unspecified thigh, init encntr

This code signifies a severe, full-thickness chemical burn affecting an unspecified area of the thigh. It indicates that the injury has destroyed all layers of the skin, including underlying tissue, and is being treated for the first time.

Apply this code for patients presenting with a third-degree chemical burn to the thigh, where the specific location on the thigh (e.g., anterior, posterior) is not documented. This code is appropriate for the initial visit and active treatment of the corrosion.

• Ensure documentation clearly specifies "third-degree" and "corrosion" (chemical burn) to differentiate from thermal burns.
• Only use the "A" seventh character for the initial encounter for active treatment of the burn.
• If the specific site on the thigh is known, a more precise code should be selected.