To add to what has already been said here, each insurance company has its own rules and standards and they can be quite different, honestly depending on the whims of the medical director. Most medical review personnel do not have surgical backgrounds and are applying what are supposed to be guidelines as gospel, with little understanding. Step 1 is to read your insurance company's guidelines. All insurers post these on their websites or you can call and request a copy. Step 2-read the guidelines critically. If they set standards in terms if height and weight, unless you have gigantomastia, meaning not DD but G or H cup breasts, realize that the message is that you will not be approved without weight loss, so pursue that first. Similarly, if the insurance company requires medical management, such as physical therapy, read the standard. It is usually three to six months, not two or three treatments. If you do not go through the protocol, which isn't designed to make it easy, you will not be approved. Step 3-documentation. Letters no longer suffice. Insurance companies want medical records so it is important for you to make sure that your complaints to the primary physician or gynecologist are documented in your chart. Similarly, expect to have the complete record accessible to your plastic surgeon. If you had PT for a foot problem, the insurance company won't accept a statement that you had PT. They will want proof of the modalities, etc. Step 4-it is important that your plastic surgeon be forthright about whether he will support your efforts with a well written preauthorization letter. As an in network doctor, I am poorly paid for breast reduction, one of my favorite procedures because of the high satisfaction rate. Some doctors will not advocate for patients because they have a lot to gain from a denied case which becomes fee for service at fair market value, which is at least 5x what the insurance company pays. Step 5-if your doctor honestly believes at the denial was erroneous or arbitrary, file an appeal. At a level 2 appeal, the burden is on the patient but the insurance company must have the case reviewed by a specialist in the same field, not my favorite medical director, the pediatrician!!! Good luck. Dr K