I am looking for a code that is used for Suboxone induction. The patient was seen by the physician, and prescribed suboxone. The patient stayed in the clinic for four hours and was monitored by nursing every 1/3 an hour. The physician also checked in on the patient a few times. For the physicians time I would use the appropriate E/M code, but I'm not sure how to code for the full 4 hours of time. Does anyone else know how to code this?