---
type: "search-params"
title: "RequestOrchestration Search Parameters"
resource: "RequestOrchestration"
---
# RequestOrchestration Search Parameters
## author
**Description:** The author of the request orchestration
**Type:** reference
**Expression:** RequestOrchestration.author
**Path:** RequestOrchestration.author
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-author
## authored
**Description:** The date the request orchestration was authored
**Type:** date
**Expression:** RequestOrchestration.authoredOn
**Path:** RequestOrchestration.authoredOn
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-authored
## based-on
**Description:** What this request fullfills.
**Type:** reference
**Expression:** RequestOrchestration.basedOn
**Path:** RequestOrchestration.basedOn
**Standards Status:** normative
## code
**Description:** The code of the request orchestration
**Type:** token
**Expression:** RequestOrchestration.code
**Path:** RequestOrchestration.code
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-code
## encounter
**Description:** The encounter the request orchestration applies to
**Type:** reference
**Expression:** RequestOrchestration.encounter
**Path:** RequestOrchestration.encounter
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-encounter
## group-identifier
**Description:** The group identifier for the request orchestration
**Type:** token
**Expression:** RequestOrchestration.groupIdentifier
**Path:** RequestOrchestration.groupIdentifier
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-group-identifier
## identifier
**Description:** External identifiers for the request orchestration
**Type:** token
**Expression:** RequestOrchestration.identifier
**Path:** RequestOrchestration.identifier
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-identifier
## instantiates-canonical
**Description:** The FHIR-based definition from which the request orchestration is realized
**Type:** reference
**Expression:** RequestOrchestration.instantiatesCanonical
**Path:** RequestOrchestration.instantiatesCanonical
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-instantiates-canonical
## instantiates-uri
**Description:** The external definition from which the request orchestration is realized
**Type:** uri
**Expression:** RequestOrchestration.instantiatesUri
**Path:** RequestOrchestration.instantiatesUri
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-instantiates-uri
## intent
**Description:** The intent of the request orchestration
**Type:** token
**Expression:** RequestOrchestration.intent
**Path:** RequestOrchestration.intent
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-intent
## participant
**Description:** The participant in the requests in the orchestration
**Type:** reference
**Expression:** RequestOrchestration.repeat(action).participant.actor.ofType(Reference) | RequestOrchestration.repeat(action).participant.actor.ofType(canonical)
**Path:** RequestOrchestration.action.participant.actor[x]
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-participant
## patient
**Description:** The identity of a patient to search for request orchestrations
**Type:** reference
**Expression:** RequestOrchestration.subject.where(resolve() is Patient)
**Path:** RequestOrchestration.subject
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-patient
## priority
**Description:** The priority of the request orchestration
**Type:** token
**Expression:** RequestOrchestration.priority
**Path:** RequestOrchestration.priority
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-priority
## status
**Description:** The status of the request orchestration
**Type:** token
**Expression:** RequestOrchestration.status
**Path:** RequestOrchestration.status
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-status
## subject
**Description:** The subject that the request orchestration is about
**Type:** reference
**Expression:** RequestOrchestration.subject
**Path:** RequestOrchestration.subject
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-subject
## action-resource
**Description:** A resource in an action of the request orchestration
**Type:** reference
**Expression:** RequestOrchestration.repeat(action).resource
**Path:** RequestOrchestration.action.resource
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/RequestOrchestration-action-resource