# concept[].definition
The existence of the imaging study is registered, but there is nothing yet available.

# concept[].definition
At least one instance has been associated with this imaging study.

# concept[].definition
The imaging study is unavailable because the imaging study was not started or not completed (also sometimes called "aborted").

# concept[].definition
The imaging study has been withdrawn following a previous final release.  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".).

# concept[].definition
The 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.