References: Finding encounters
Patients often have one or more encounters. You can search for all encounter resources for a specific patient using the subject search parameter.
An encounter has several details contained within the resource. Most importantly, it has a subject, which is a reference to the patient for whom this encounter exists. It also generally has references to practitioner resources who are a part of the encounter in some way.
Request: Search query for encounters
The following example uses the _sort parameter so the results are returned in order by date from oldest to newest.

Parent topic: FHIR Search operations