Hello there, I'm assuming you mean conscious/moderate sedation as defined by the ASA, rather than deeper sedation.
If so, start by reading the CPT guidelines for moderate sedation codes 99151-99157. This includes a section in the Anesthesia Guidelines that explains who can perform and bill the service based on whether the procedure is performed in a non-facility or facility setting. Basically, in a non-facility setting the physician/QHP who performs the service also has to perform the moderate sedation and