Apatient is admitted to the hospital to undergo a radical mastectomy for recurrent carcinoma of the breast (previously, she had elected to have a lumpectomy). the attending physician list patient has a historyof atrial fibrillation as a secondary diagnosis. the patient is currently not on any medication. for medical clearance prior to surgery, the patient is seen by a consultant, who says that the patient was satisfactory for the procedure. the coder should: