A general Purpose Performed Procedure step is an arbitrarily defined unit of service that has actually been performed ( not just scheduled ). Normally it corresponds to one General Purpose Scheduled Procedure step, but real-world conditions may dictate that what is actually performed does not correspond exactly with what was requested or scheduled.
Note: For example, two or more General Purpose Scheduled Procedure Steps, Requested Procedures or Imaging Service Requests may have been generated by different Referring Physicians but may be satisfied by a single General Purpose Performed Procedure Step at the discretion of a Performing Physician or Operator. Alternatively, a single General Purpose Scheduled Procedure step may need to be satisfied by multiple General Purpose Performed Procedure Steps on different types or instances of equipment, due to clinical need or failure conditions, or over extended periods of time.
It contains information describing the type of procedure actually performed.
A Requested Procedure results in the creation of zero or more General Purpose Performed Procedure Steps.
A General Purpose Scheduled Procedure Step results in the creation of zero or more General Purpose Performed Procedure Steps.
The General Purpose Performed Procedure Step contains information about its state.
It contains information describing the performance of the general purpose procedure step of a procedure.
The General Purpose Performed Procedure step contains references to zero or more Composite SOP Instances that have been created as part of the procedure step.