CPT® Code 11755

The procedure described by CPT® Code 11755 involves a biopsy of the nail unit, which encompasses various components including the nail plate, nail bed, nail matrix, hyponychium, and the proximal and lateral nail folds. The nail unit is a complex structure that plays a crucial role in nail health and function. The biopsy is performed as a separate procedure, meaning it is distinct from other surgical interventions and is specifically focused on obtaining tissue samples for diagnostic purposes. The technique utilized for the biopsy may vary depending on the specific area of the nail unit that requires examination. A commonly employed method is the double punch biopsy, which involves the use of a 4-6 mm punch tool to excise a circular section of the nail plate. Following this, a smaller punch tool is used to collect a tissue sample from the underlying structures. Alternatively, an excisional biopsy may be conducted, where an incision is made at the lateral margin of the nail, extending down to the underlying bony phalanx to retrieve a tissue sample. The choice of technique is determined by the clinical scenario and the specific area being biopsied, with the option to leave the biopsy site open for natural healing or to close it with sutures for more controlled recovery.