Corrosion of second degree back of left hand, subs encntr

This code signifies a second-degree chemical burn affecting the back of the left hand. It indicates damage extending through the epidermis and into the dermis, characterized by blistering, pain, and redness, and is being treated during a follow-up visit.

Apply this code when documenting ongoing care for a patient who previously sustained a second-degree chemical burn to the dorsal aspect of their left hand. This includes scenarios such as wound checks, dressing changes, or evaluation of healing progress after the initial treatment.

• Ensure the documentation clearly specifies a chemical burn (corrosion) and not a thermal burn.
• Verify the encounter is subsequent to the initial treatment for the burn.
• Confirm the burn location is precisely the back of the left hand.