Can a drug test tell the difference between oxycodone and Oxycontin?

If it's a complete lab test done, then yes, it can distinguish between all the opiates, all the benzodiazpenes (sp?) Most drug tests will just show up as "opiates" in your system, but it depends on how many the panel checks for. The smallest ones are 3, I know with drug tests if you're in trouble with the law they only do a five panel test. My doctor did a 12 panel test wit me and was able to differentiate when I told him the only opiate I took was my prescribed Lortabs. Then he said, "Well, why is oxycodone showing up then?" :/