Blister (nonthermal) of other finger, initial encounter

This code signifies a non-thermal blister located on any finger other than the thumb or index finger. It specifically denotes the initial encounter for this condition, indicating the patient is presenting for the first time for treatment of this particular blister.

Apply this code when documenting a patient's first visit for a blister on their middle, ring, or little finger that was not caused by heat or cold exposure. Examples include blisters from friction, pressure, or contact with irritants.

• Ensure the blister is explicitly documented as non-thermal.
• Verify the affected finger is not the thumb or index finger.
• Confirm this is the initial encounter for this specific blister; subsequent visits would use a different encounter character.