Blister (nonthermal) of right wrist, initial encounter

This code signifies a non-heat-related fluid-filled lesion on the right wrist. This type of blister typically results from friction, pressure, or contact with irritants, rather than burns or frostbite. The "initial encounter" designation indicates that the patient is receiving active treatment for this specific injury.

Apply this code when documenting a patient presenting with a blister on their right wrist that is not caused by thermal exposure. This includes blisters from repetitive motion, ill-fitting equipment, or allergic contact dermatitis. It is appropriate for the first time the patient is seen for this particular injury.

• Always verify the laterality (right) and the absence of a thermal cause.
• Ensure "initial encounter" is appropriate; subsequent visits for the same blister would use a different encounter character.
• Consider additional codes for the underlying cause if known and relevant (e.g., contact dermatitis, friction injury).