This value set includes codes based on the following rules:
http://terminology.hl7.org/CodeSystem/v3-ActPriority| Code | Display | Definition |
| A | ASAP | As soon as possible, next highest priority after stat. |
| CR | callback results | Filler should contact the placer as soon as results are available, even for preliminary results. (Was "C" in HL7 version 2.3's reporting priority.) |
| EL | elective | Beneficial to the patient but not essential for survival. |
| EM | emergency | An unforeseen combination of circumstances or the resulting state that calls for immediate action. |
| 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. |
| 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. |
| R | routine | Routine service, do at usual work hours. |
| RR | rush reporting | A report should be prepared and sent as quickly as possible. |
| S | stat | With highest priority (e.g., emergency). |
| T | timing critical | It is critical to come as close as possible to the requested time (e.g., for a through antimicrobial level). |
| UD | use as directed | Drug is to be used as directed by the prescriber. |
| UR | urgent | Calls for prompt action. |