CPT® Code 42505

Plastic repair of a salivary duct, known as sialodochoplasty, is a surgical procedure aimed at repairing injuries to the salivary duct system. This procedure is particularly relevant in cases where the duct has been compromised due to penetrating injuries, often associated with trauma to the face. The salivary ducts, especially the parotid ducts, are susceptible to injury due to their anatomical positioning, although injuries can also occur in the submandibular and sublingual ducts. The procedure involves a thorough exploration of the wound to locate the salivary duct and assess the extent of the injury. In cases classified under CPT® Code 42500, a primary or simple repair is performed, which involves trimming the edges of the duct and placing a catheter to facilitate healing. However, CPT® Code 42505 refers to a secondary or complicated repair, typically necessitated by a failed primary repair or complications arising from the injury, such as contamination or infection. This more complex procedure requires careful dissection and mobilization of the ductal segments to ensure a tension-free repair, with the catheter remaining in place to support the healing process.