Often, and more often than patients expect, but carriers set specific criteria. Typically they want documented symptoms such as back, neck, or shoulder pain, evidence you have tried conservative measures like physical therapy or supportive garments, and sometimes a minimum amount of tissue to be removed based on your height and weight. Photographs are usually required. Start the process early because approval can take weeks, and ask the surgeon's office whether they handle the pre-authorization, since experienced offices do this routinely.