Will Ambien give a positive for benzodiazepine?

Yes

Yes it does. It just literally happened to me. I was shocked when the office told me benzodiazepines showed up in my urine. I don't take them at all. Then the doctor did research and found it does give a false positive.

Zolpidem is not known to interfere with commonly employed clinical laboratory tests. In addition, clinical data indicate that zolpidem does not cross-react with benzodiazepines, opiates, barbiturates, cocaine, cannabinoids, or amphetamines in two standard urine drug screens.