The maximum number of resources to return in a result page.

Used to request a specific set of elements be returned as part of a resource.

Resource id

When the resource last changed

Where the resource comes from

Used to return only a portion of the resouces. Defaults to 'false', which returns the whole resource.

Use the value 'estimate' to populate the result bundle's 'total' element with an estimate of the matching number of resources.

Reference to the procedure request.

The classification of the type of report - path DiagnosticReport.category.
Matches CareEvolution reports whose type is in a term subset with scope 'http://hl7.org/fhir/v2/0074' and name equal to one of the specified codes with system 'http://hl7.org/fhir/v2/0074'.
Matches any CareEvolution lab reports if one of the specified category codes is 'LAB' with system 'http://hl7.org/fhir/v2/0074'.
So for example 'category=http://hl7.org/fhir/v2/0074|Hematology' (and 'category=Hematology') matches no lab reports and matches reports whose type is in the term subset with scope 'http://hl7.org/fhir/v2/0074' and name 'Hematology'.
'category=http://hl7.org/fhir/v2/0074|LAB' (and 'category=LAB') matches any lab report whose type is in the term subset with scope 'http://hl7.org/fhir/v2/0074' and name 'LAB'.
'category=http://snomed.info/sct|laboratory' matches no lab reports and matches no reports.

The code for the report as a whole, as opposed to codes for the atomic results, which are the names on the observation resource referred to from the result

The clinically relevant time of the report

The Encounter when the order was made

The patient the DiagnosticReport is about

Who was the source of the report (organization)

Search by provenance, specified by its author (aka originator) Organization

Link to an atomic result (observation resource)

The specimen details

The status of the report

The patient the DiagnosticReport is about. Functionally identical to the "patient" search parameter.