CPT® Code 42330

The procedure described by CPT® Code 42330 refers to a sialolithotomy, which is a surgical intervention aimed at removing a calculus, commonly known as a stone, from the salivary glands or ducts, specifically the submandibular (submaxillary), sublingual, or parotid glands. This procedure is classified as uncomplicated and is performed intraorally, meaning that it is conducted within the mouth. During the sialolithotomy, the surgeon identifies and protects the papilla of the salivary duct associated with the affected gland. An incision is made in the mucosa overlying the duct or gland to expose the area where the calculus is located. The surgeon then incises the salivary gland or duct to access the calculus, which is carefully dissected free from the surrounding tissue. After the calculus is removed, the duct or gland is repaired with sutures, and the overlying mucosa is also sutured closed. This procedure is distinct from more complicated sialolithotomies, which may involve more extensive dissection and additional challenges, such as multiple calculi or larger stones that are more difficult to access.