Idaho Subscriber
Answer: Unfortunately, CMS doesn't pay the physician for transfusions in the ED setting, so they won't reimburse you for 36430 (Transfusion, blood or blood components). They feel that it is a nursing service, so even if the physician does start the intravenous medication, the IV code does not have a physician work value and Medicare expects the facility to bill for the service.
While you may have luck with certain commercial payers (check with individual carriers), Medicare and other government programs will not reimburse for the professional component of this service.