Corrosion of second degree of left knee, initial encounter

This code signifies a second-degree chemical burn, also known as a corrosion, affecting the left knee. This type of injury involves damage to the epidermis and dermis, characterized by blistering, pain, and redness, resulting from contact with a corrosive substance.

Apply this code when documenting the initial treatment for a patient presenting with a second-degree chemical burn to their left knee. This includes scenarios such as chemical spills, industrial accidents, or exposure to strong acids or bases causing a blistering injury to the specified anatomical site.

• Ensure the documentation clearly specifies "corrosion" or "chemical burn" and the degree of the burn.
• Verify the laterality is explicitly stated as "left knee."
• The "A" seventh character indicates this is the initial encounter for treatment of this specific injury.