| Code | Display | Definition |
| preparation | Preparation | The core event has not started yet, but some staging activities have begun (e.g. surgical suite preparation). Preparation stages may be tracked for billing purposes. |
| in-progress | In Progress | The event is currently occurring |
| suspended | Suspended | The event has been temporarily stopped but is expected to resume in the future |
| aborted | Aborted | The event was prior to the full completion of the intended actions |
| completed | Completed | The event has now concluded |
| entered-in-error | Entered in Error | This electronic record should never have existed, though it is possible that real-world decisions were based on it. (If real-world activity has occurred, the status should be "cancelled" rather than "entered-in-error".) |
| unknown | Unknown | The authoring system does not know which of the status values currently applies for this request. Note: This concept is not to be used for "other" - one of the listed statuses is presumed to apply, it's just not known which one. |