CPT® Code 31571

This procedure, known as laryngoscopy with injection into the vocal cord(s), is a therapeutic intervention primarily aimed at addressing vocal cord atrophy or paralysis. It is commonly referred to as injection medialization laryngoplasty. The procedure utilizes a direct laryngoscope, which is a specialized instrument that allows the physician to visualize the laryngeal structures directly through fiberoptic technology. There are two main types of direct laryngoscopes: a rigid angled scope and a flexible scope, each serving to examine the oral cavity, oropharynx, hypopharynx, larynx, and trachea. During the procedure, the physician suspends the laryngoscope to obtain a clear view of the vocal cords. An operating microscope or telescope may be employed to enhance visualization and facilitate the injection process. The injection is performed in the paraglottic space, specifically lateral to the thyroarytenoid muscle, using either a resorbable material for temporary effects or an implant material for more permanent results. This injection serves to bulk up the vocal cord, repositioning it to a more normal anatomical position, which can improve vocal function. Following the injection, the physician assesses the patient's response to the treatment to determine if the desired outcome has been achieved or if further injections are necessary. The procedure can be conducted unilaterally or bilaterally, depending on the patient's specific needs. It is important to note that CPT® Code 31571 is designated for cases where an operating microscope or telescope is utilized, while CPT® Code 31570 is applicable when these instruments are not used.