In order to do process mining in healthcare, one soon discovers that simplifying a log is important.

Maybe you don’t need all individual vital signs – but just an event that vital signs action were taken by some clinician.

For that you will need your coded events replaced by some higher level concept (blood pressure – vital signs, respiratory rate – vital signs).

Than you simply collapse events happening within a certain time frame (e.g., 10 minutes) into just one event (vital signs).

Several terminology problems arise with that.
For more fun, google SA-MXML