CPT® Code 92567

Tympanometry, also known as impedance testing, is a diagnostic procedure utilized to assess the functionality of the middle ear. This test is particularly significant as it measures the compliance or flexibility of the eardrum, which is crucial for proper hearing. By evaluating the movement of the tympanic membrane (eardrum) in response to changes in air pressure, tympanometry aids in identifying various middle ear conditions. These conditions may include the presence of fluid in the middle ear, which can indicate an infection or other issues; negative pressure in the middle ear, which may suggest Eustachian tube dysfunction; perforation of the tympanic membrane, which can affect hearing; disruption of the ossicles, the small bones in the middle ear that transmit sound; and otosclerosis, a condition that can lead to hearing loss due to abnormal bone growth in the ear. During the procedure, a physician typically begins by examining the ear with an otoscope to ensure there are no obstructions or abnormalities. Following this examination, a tympanometry device is carefully inserted into the ear canal. This device applies a controlled amount of air pressure, which alters the pressure within the ear canal, causing the eardrum to move. The resulting movement is captured and displayed on a graph known as a tympanogram. The physician then analyzes the tympanogram to interpret the results, providing valuable insights into the patient's middle ear health.