Blister (nonthermal) of unspecified wrist, subs encntr

This code signifies a non-burn related fluid-filled lesion on an unspecified wrist, indicating a follow-up visit for treatment or monitoring. The blister is not due to heat, cold, or chemical exposure, but rather other causes such as friction, allergic reaction, or infection.

Apply this code for subsequent encounters when a patient presents for ongoing care of a blister on the wrist that was not caused by thermal injury. This includes visits for dressing changes, wound checks, or further evaluation after the initial diagnosis and treatment.

• Ensure documentation specifies the blister is nonthermal and located on the wrist.
• The "D" seventh character indicates subsequent care after the initial treatment phase.
• If the specific wrist (right or left) is documented, choose a more precise code.