The social security number remains the best unique operator identifier that is currently available. Operator-specific data will only be reported in aggregate to support quality improvement activities. These elements are indications for the cardiac cath procedure. They may or may not be the specific reason for which the patient is in the lab. This references insufficiency not stenosis.
Stenosis is addressed in other data elements.
Yes, alert that MI at admission was indicated. But there is no connection between positive functional test as an indication for cath and the presence of an MI at admission. This is part of a quality data collection process. The title of this element should be Cardiac Arrest or Arrhythmia. Causality cannot be inferred because we do not have enough information on which to base such a claim.