Did BCBS pay for any if your pre-op tests? They declined all of mine which has cost me $6000.

Two of my tests came back as not covered. (3000.00) I phoned the insurance and asked them why, if the tests were required for surgery, were they not covered? I was told that I needed approval for pre-surgery tests. I phoned my surgeon's insurance coordinator who contacted BCBS. I am not sure what she did but all of the tests have been paid now - as were the two that were denied as non-covered.