A set of codes (e.g., for routine, emergency), specifying the urgency under which the Act happened, can happen, is happening, is intended to happen, or is requested/demanded to happen. 
               
 | Level | Code | Display | Definition | 
 | 1 | A  | ASAP | 
                        As soon as possible, next highest priority after stat. 
                      | 
 | 1 | CR  | callback results | 
                        Filler should contact the placer as soon as results are available, even for preliminary results.  (Was "C" in HL7 verion 2.3's reporting priority.) 
                      | 
 | 1 | CS  | callback for scheduling | 
                        Filler should contact the placer (or target) to schedule the service.  (Was "C" in HL7 version 2.3's TQ-priority component.) 
                      | 
 | 2 |   CSP  | callback placer for scheduling | 
                        Filler should contact the placer to schedule the service.  (Was "C" in HL7 version 2.3's TQ-priority component.) 
                      | 
 | 2 |   CSR  | contact recipient for scheduling | 
                        Filler should contact the service recipient (target) to schedule the service.  (Was "C" in HL7 version 2.3's TQ-priority component.) 
                      | 
 | 1 | EL  | elective | 
                        Beneficial to the patient but not essential for survival. 
                      | 
 | 1 | EM  | emergency | 
                        An unforeseen combination of circumstances or the resulting state that calls for immediate action. 
                      | 
 | 1 | P  | preop | 
                        Used to indicate that a service is to be performed prior to a scheduled surgery.  When ordering a service and using the pre-op priority, a check is done to see the amount of time that must be allowed for performance of the service.  When the order is placed, a message can be generated indicating the time needed for the service so that it is not ordered in conflict with a scheduled operation. 
                      | 
 | 1 | PRN  | as needed | 
                        An "as needed" order should be accompanied by a description of what constitutes a need. This description is represented by an observation service predicate as a precondition. 
                      | 
 | 1 | R  | routine | 
                        Routine service, do at usual work hours. 
                      | 
 | 1 | RR  | rush reporting | 
                        A report should be prepared and sent as quickly as possible. 
                      | 
 | 1 | S  | stat | 
                        With highest priority (e.g., emergency). 
                      | 
 | 1 | T  | timing critical | 
                        It is critical to come as close as possible to the requested time (e.g., for a through antimicrobial level). 
                      | 
 | 1 | UD  | use as directed | 
                        Drug is to be used as directed by the prescriber. 
                      | 
 | 1 | UR  | urgent | 
                        Calls for prompt action. 
                      |