CPT® Code 42700

The CPT® Code 42700 refers to the procedure of incision and drainage of a peritonsillar abscess. A peritonsillar abscess is a localized collection of pus that typically forms near the superior aspect of the palatine tonsils, situated outside the tonsillar capsule. This condition arises in the space between the superior constrictor muscle and the palatopharyngeus muscle. The procedure involves making a small incision in the soft palate, usually positioned superior to the tonsil, using a guarded scalpel to minimize the risk of deep tissue injury. The use of a Kelly clamp is essential for gently dissecting the surrounding tissue to locate the abscess cavity. Once the cavity is identified, it is entered and drained to relieve the pressure and remove the pus. This procedure is critical in managing infections that can lead to complications if left untreated. It is important to note that while CPT® Code 42700 specifically addresses the peritonsillar abscess, there are other codes such as 42720 and 42725 that pertain to the drainage of retropharyngeal and parapharyngeal abscesses, respectively, each with distinct approaches based on the abscess's location and characteristics.