CPT® Code 42300

The procedure described by CPT® Code 42300 refers to the drainage of a simple abscess located in the parotid gland, which is one of the major salivary glands situated in front of the ears. This condition, known as sialoadenitis, involves the accumulation of pus within the gland due to infection or blockage. The parotid glands are significant as they produce saliva, which aids in digestion and oral health. During the procedure, a surgical incision is made anterior to the ear and extends beneath the jawline, allowing access to the affected area. The surgeon raises skin flaps to expose the underlying fat and fascia, which are carefully dissected to reveal the parotid gland. Incisions are then made in the gland itself, parallel to the branches of the facial nerve, to facilitate the drainage of pus from the abscess cavity. Following drainage, the cavity is irrigated with sterile saline or an antibiotic solution to ensure cleanliness and reduce the risk of further infection. Depending on the extent of the abscess, drains may be placed to allow for continued drainage, and the incision is subsequently closed. It is important to note that for more complicated cases requiring extensive drainage, CPT® Code 42305 should be used instead.