I am trying to obtain clarification of when moderate sedation can be reported by the same physician performing the diagnostic/therapeutic service when performed is a hospital setting. Is it appropriate to bill 99151-99152 if the moderate sedation if it is ordered by the physician, but is ADMINISTERED by the hospital employed nurse who also monitors the patient, or is it expected that the physician performing the diagnostic/therapeutic service order and personally administer the moderate sedation in order to bill for the physician's work? I can not seem to find any solid publication that clarifies this scenario. Any guidance is much appreciated.