I would reset it and wait if it comes back,
even when they say it's not the o2 sensor, it is the most frecuently cause, if it is the sensor it's about $50-60 and it's easy to do it yourself (with some time for bank 1)
I had this same code (and other from the sensor) it was solved with a new one,
Hope it helps,
RMR
PS if it's just this code it's not harmful to drive
