Blister (nonthermal) of unspecified hand, subs encntr

This code signifies a non-heat-related fluid-filled lesion on an unspecified part of the hand, occurring during a follow-up visit for the initial injury. It indicates that the blister is being treated or monitored after the initial encounter.

Apply this code when a patient presents for ongoing care of a blister on their hand that was not caused by a burn or frostbite. This would include scenarios such as a follow-up appointment for dressing changes, wound care, or re-evaluation of a previously diagnosed non-thermal hand blister.

• Ensure documentation specifies a non-thermal etiology for the blister.
• Confirm this is a subsequent encounter, not the initial treatment for the blister.
• If the specific hand (left or right) is known, a more specific code should be used.