Hi Mary! My UHC plan did NOT require the 6 month diet. On my paperwork for the Dr I had to write down all my attempts at weight loss but they were not all documented by a physician. For Instance, I wrote I tried Alli, metabolife, acai berry/colon cleanse diet, weight watchers, etc...I wrote it all down. I'm not sure if they submitted that sheet to my insurance or not. Now I know each UHC plan is different depending on your employer. I'm not sure if UHC doesnt require the 6 month diet period or if my particular UHC didn't. I actually had good luck with UHC when I called about having surgery. They told me exactly what they required. I believe it was called the Care Coordination department I spoke with. I told them I'm thinking about having this surgery, what are the requirements. I wish you the best of luck. I know how stressful this part of the process can be. I'm not sure what kind of surgery you are considering but UHC starting covering the gastric sleeve at the end of 2009. They are one of the very few to cover it, if not the only. I was going to get gastric bypass until I learned they covered the sleeve. I had my gastric sleeve done on March 22 and I feel great. Good Luck!!