CPT® Code 42340

The procedure described by CPT® Code 42340, known as sialolithotomy, involves the surgical removal of a calculus, or stone, from the parotid salivary gland or duct. This procedure is categorized as either extraoral or complicated intraoral, indicating that it may require more extensive surgical intervention compared to simpler cases. Sialolithotomy is specifically indicated when a calculus is lodged in a location that is difficult to access, necessitating careful dissection of surrounding tissues. This may include the identification and protection of critical anatomical structures such as nerves and blood vessels during the procedure. The term 'sialolithotomy' is often used interchangeably with 'sialolithomy,' although the latter typically refers to less complicated cases. In contrast to CPT® Code 42330, which pertains to uncomplicated intraoral procedures for calculus removal from the sublingual or parotid duct or gland, CPT® Code 42340 addresses more complex scenarios. These may involve multiple calculi or particularly large stones that complicate the surgical approach. The overall goal of the procedure is to alleviate symptoms associated with salivary gland obstruction and to restore normal salivary function.