Corrosion of first degree of chin, subsequent encounter

This code signifies a superficial burn injury to the chin, characterized by redness and mild pain, without blistering or skin breakage. The "subsequent encounter" designation indicates that the patient is receiving follow-up care for this specific injury, rather than initial treatment.

Apply this code when a patient presents for a follow-up visit related to a first-degree corrosion (burn) of the chin. This includes scenarios such as wound checks, dressing changes, or evaluation of healing progress after the initial treatment has been rendered.

• Ensure the documentation clearly specifies a first-degree burn and the anatomical site as the chin.
• Verify that the encounter is for follow-up care, not the initial treatment, to justify the "D" seventh character.
• Distinguish between a burn (thermal injury) and corrosion (chemical injury); this code specifically refers to corrosion.