Blister (nonthermal) of right forearm, initial encounter

This code signifies a non-burn related fluid-filled lesion on the right forearm. These blisters are typically caused by friction, pressure, or contact with irritants, rather than heat or cold exposure. The "initial encounter" designation indicates that the patient is receiving active treatment for this specific injury.

Apply this code when documenting a patient presenting for the first time with a blister on their right forearm that is not due to a thermal injury. Examples include blisters from repetitive rubbing, ill-fitting clothing, or chemical exposure. This code is appropriate for the initial evaluation and management of such a lesion.

• Ensure the blister is explicitly documented as non-thermal and located on the right forearm.
• Verify that this is the patient's first visit for this specific blister to use the "A" initial encounter seventh character.
• Do not use this code for blisters resulting from burns, frostbite, or systemic conditions like pemphigus.