We were called to assume care for a patient admitted to observation by the surgeon (not related to our practice) following a procedure. There is not an H&P for the admission by the surgeon in the chart, however our doctor dictated one. My question is how should we bill for our services? Since we are assuming the care, but our physician is not listed on the admission order, should we bill outpt codes (ex: 99214)? What about discharge from observation? Our phsysician did the discharge, so can we bill 99217 even though his name is not on the observation admission order? Thanks!