Blister (nonthermal) of left forearm, subsequent encounter

This code signifies a non-thermal blister located on the patient's left forearm. It indicates that the patient is in the healing phase of the injury, receiving follow-up care for this specific blister. The blister is not due to burns or frostbite.

Apply this code for follow-up visits where a patient presents with a blister on their left forearm that was not caused by heat or cold exposure. This is appropriate for subsequent encounters after the initial diagnosis and treatment, such as for wound checks, dressing changes, or monitoring healing progress.

• Ensure the blister is specifically on the left forearm and not another anatomical site.
• Verify the encounter is subsequent to the initial treatment; use an initial encounter code for the first visit.
• Confirm the etiology is non-thermal; do not use for burn or frostbite blisters.