Oral Fluid Drug Screen Testing

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We are a CLIA approved lab that does in-house urine drug screens using cpt code 80305 with modifier QW. Recently our clinic started offering Vivitrol injections and part of the patients therapy is to be drug screened. It was decided to do the drug screens using oral fluid due to the swab being capable of detecting the presence of alcohol along with 13 other drug classes through optical observation. Some of the medical staff are concerned that this method isn't CLIA approved and another would like to test for both the urine and the oral fluid; so can anyone tell me if there is a specific brand of swab we need to use or it doesn't matter as long as it is coded once per day with 80305 - QW. Any input would be appreciated.

Thank you,