Blister (nonthermal) of right back wall of thorax, subs

This code signifies a non-heat-related blister located on the right posterior aspect of the chest wall. It indicates that the patient is presenting for follow-up care or treatment of this specific injury, rather than the initial presentation.

Apply this code when a patient returns for subsequent evaluation or management of a blister on their right back, such as for wound care, dressing changes, or monitoring healing progress. This would be used after the initial encounter where the blister was first diagnosed and treated.

• Ensure the documentation clearly specifies a "subsequent encounter" for this injury.
• Verify the blister is explicitly documented as non-thermal and located on the right back wall of the thorax.
• Do not use for initial treatment of the blister; refer to the appropriate initial encounter code.