Tummy Tuck with Tricare Prime

Yesterday, I got a referral from my doctor to get a tummy tuck. Has anyone been approved to get a tummy tuck with Tricare? If so, do you have any suggestions on how I can get approved? Can you tell me the approval process? How long did it take you from the referral to surgery? I'm not sure who the surgeon will be but the doctor said it's a lady surgeon in Jefferson City. Your comments will be appreciated because I haven't had time to check into what the process is or any other details. Thanks! Nancy