CPT® Code 42408

The procedure described by CPT® Code 42408 involves the excision of a sublingual salivary cyst, commonly referred to as a ranula. A ranula is a type of mucocele that forms in the floor of the mouth, typically as a result of trauma to the sublingual gland or duct, obstruction of the duct, or infection of the gland. When the sublingual gland or duct is damaged, mucous can escape and accumulate in the surrounding soft tissues, leading to the formation of a cyst. The excision procedure aims to remove this cyst to alleviate symptoms and prevent further complications. During the procedure, Wharton's duct, which is the duct associated with the sublingual gland, is cannulated to ensure it is properly identified and protected throughout the surgical process. An incision is made directly over the cyst, and careful dissection is performed to separate the cyst from the surrounding tissues, including the sublingual salivary gland, submandibular duct, and lingual nerve, to minimize the risk of injury. Once the cyst is successfully excised, the surgical site is repaired in layers to promote proper healing.