A 26 year old must have a drug screen performed in order to obtain a job at a local nursing home. The nursing home orders a 7-panel drug screen for amphetamines, benzodiazepines, cocaine, heroin, methadone, opiates, and oxycodone. If any of these come up positive by direct optical observation, then definitive drug testing is ordered as reflex testing. This patient did not have any positives on optical observation so no additional testing was performed. What is the correct CPT code for this drug screen?