he patient was brought to the operating room and placed supine on the operating table and given an upper extremity IV bier block and a gram of Ancef IV. Once anesthetized, the upper extremity was prepped and draped in the usual manner to proceed with a carpal tunnel release.” The coder must query the physician to ask for: Missing detail: left or right arm Contradictory detail: which type of anesthesia: bier block or IV Missing detail: on which portion of the arm was the procedure performed No query is necessary