Corrosion of first degree of left palm, subsequent encounter

This diagnosis code indicates a first-degree chemical burn affecting the palm of the left hand. A first-degree corrosion involves only the epidermis, presenting with redness, mild swelling, and pain, but no blistering or skin breakdown. The "subsequent encounter" designation signifies that the patient is receiving follow-up care for this injury after the initial treatment.

Apply this code when documenting follow-up visits for a patient who previously sustained a superficial chemical burn to their left palm. This includes scenarios such as wound checks, dressing changes, or medication refills related to the initial corrosion. It is appropriate for any encounter after the initial treatment of the injury.

• Ensure the documentation clearly specifies "left palm" and "first-degree" corrosion.
• Verify that the encounter is for follow-up care, not the initial treatment of the injury.
• Distinguish between "corrosion" (chemical burn) and "burn" (thermal burn) as they have separate code categories.