I have been asked by one of our speciality clinics as to what they should bill when they go to the Hospital when one of their patients is in the Infusion care Unit for bleeding and thrombocytopenis. They are documenting a complete History, Exam, and Medical Decision making plan. I have been told this could be charged by the Pediactric Dr that goes to the hospital as an Observation level but then the more I read I am wondering if it should be coded out with Established Patient (other outpatient vist) code instead. Please verify the correct way for this group of Doctors.