Corrosion of first degree of left foot, subsequent encounter

This code signifies a superficial chemical burn (corrosion) affecting the left foot, characterized by redness and mild pain without blistering or skin loss. The "subsequent encounter" designation indicates that the patient is receiving follow-up care for this specific injury after the initial treatment.

Apply this code when documenting ongoing management, such as wound checks, dressing changes, or medication refills, for a previously diagnosed first-degree chemical burn to the left foot. This would include scenarios where the patient returns for a re-evaluation of the healing process.

• Ensure the documentation clearly specifies "left foot" 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 different code categories.