http://hl7.org/fhir/StructureDefinition/capabilitystatement-search-parameter-use|5.2.0

This extension defines if a search parameter is only allowed in certain contexts

Name	Card	Type	Description & Constraints
Extension	0..1		Search context a search parameter allowed to be used
extension *	1..1	Extension	If this search parameter can use used in standalone search.
extension	?..0
url	?..?	uri
value[x] *	1..?
valueBoolean *	1..?	boolean
extension *	1..1	Extension	If this search parameter can use used in _include search.
extension	?..0
url	?..?	uri
value[x] *	1..?
valueBoolean *	1..?	boolean
extension *	1..1	Extension	If this search parameter can use used in _revinclude search.
extension	?..0
url	?..?	uri
value[x] *	1..?
valueBoolean *	1..?	boolean
url	?..?
value[x]	0..0