| Code | Description | Comment | Version | 
| a  | ASAP - As soon as possible, next highest priority after stat |  | added v2.7 | 
| cr  | Callback results - filler should contact the placer as soon as results are available, even for preliminary results |  | added v2.7 | 
| cs  | Callback for scheduling - Filler should contact the placer (or target) to schedule the service. |  | added v2.7 | 
| csp  | Callback placer for scheduling - filler should contact the placer to schedule the service |  | added v2.7 | 
| csr  | Contact recipient for scheduling - Filler should contact the service recipient (target) to schedule the service |  | added v2.7 | 
| el  | Elective - Beneficial to the patient but not essential for survival. |  | added v2.7 | 
| em  | Emergency - An unforeseen combination of circumstances or the resulting state that calls for immediate action |  | added v2.7 | 
| 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 |  | added v2.7 | 
| 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. |  | added v2.7 | 
| r  | Routine - Routine service, do at usual work hours |  | added v2.7 | 
| rr  | Rush reporting - A report should be prepared and sent as quickly as possible |  | added v2.7 | 
| s  | Stat - With highest priority (e.g. emergency). |  | added v2.7 | 
| t  | Timing critical - It is critical to come as close as possible to the requested time (e.g. for a through antimicrobial level). |  | added v2.7 | 
| ud  | Use as directed - Drug is to be used as directed by the prescriber. |  | added v2.7 | 
| ur  | Urgent - Calls for prompt action |  | added v2.7 |