Corrosion of second degree of chin, subsequent encounter

This code signifies a second-degree chemical burn affecting the chin, indicating damage to the epidermis and dermis with blistering and pain. The "subsequent encounter" designation means this code is used for care received after the initial treatment of the corrosion.

Apply this code when documenting follow-up care, wound checks, or ongoing treatment for a chemical burn of the chin that was initially treated elsewhere or in a previous encounter. This includes scenarios where the patient is returning for dressing changes, infection monitoring, or assessment of healing progression.

• Always ensure the encounter type is truly "subsequent" and not the initial treatment.
• Verify the burn is specifically a corrosion (chemical burn) and not a thermal burn.
• Confirm the degree of the burn is second degree and the anatomical site is the chin.