---
type: "search-params"
title: "CommunicationRequest Search Parameters"
resource: "CommunicationRequest"
---
# CommunicationRequest Search Parameters

<a id="authored"></a>

## authored
**Description:** When request transitioned to being actionable

**Type:** date

**Expression:** CommunicationRequest.authoredOn

**Path:** CommunicationRequest.authoredOn

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-authored


<a id="based-on"></a>

## based-on
**Description:** Fulfills plan or proposal

**Type:** reference

**Expression:** CommunicationRequest.basedOn

**Path:** CommunicationRequest.basedOn

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-based-on


<a id="category"></a>

## category
**Description:** Message category

**Type:** token

**Expression:** CommunicationRequest.category

**Path:** CommunicationRequest.category

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-category


<a id="encounter"></a>

## encounter
**Description:** The Encounter during which this CommunicationRequest was created

**Type:** reference

**Expression:** CommunicationRequest.encounter

**Path:** CommunicationRequest.encounter

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-encounter


<a id="group-identifier"></a>

## group-identifier
**Description:** Composite request this is part of

**Type:** token

**Expression:** CommunicationRequest.groupIdentifier

**Path:** CommunicationRequest.groupIdentifier

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-group-identifier


<a id="identifier"></a>

## identifier
**Description:** Unique identifier

**Type:** token

**Expression:** CommunicationRequest.identifier

**Path:** CommunicationRequest.identifier

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-identifier


<a id="information-provider"></a>

## information-provider
**Description:** Who should share the information

**Type:** reference

**Expression:** CommunicationRequest.informationProvider

**Path:** CommunicationRequest.informationProvider

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-information-provider


<a id="medium"></a>

## medium
**Description:** A channel of communication

**Type:** token

**Expression:** CommunicationRequest.medium

**Path:** CommunicationRequest.medium

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-medium


<a id="occurrence"></a>

## occurrence
**Description:** When scheduled

**Type:** date

**Expression:** CommunicationRequest.occurrence.ofType(dateTime) | CommunicationRequest.occurrence.ofType(Period)

**Path:** CommunicationRequest.occurrence[x]

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-occurrence


<a id="patient"></a>

## patient
**Description:** Focus of message

**Type:** reference

**Expression:** CommunicationRequest.subject.where(resolve() is Patient)

**Path:** CommunicationRequest.subject

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-patient


<a id="priority"></a>

## priority
**Description:** routine | urgent | asap | stat

**Type:** token

**Expression:** CommunicationRequest.priority

**Path:** CommunicationRequest.priority

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-priority


<a id="recipient"></a>

## recipient
**Description:** Who to share the information with

**Type:** reference

**Expression:** CommunicationRequest.recipient

**Path:** CommunicationRequest.recipient

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-recipient


<a id="replaces"></a>

## replaces
**Description:** Request(s) replaced by this request

**Type:** reference

**Expression:** CommunicationRequest.replaces

**Path:** CommunicationRequest.replaces

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-replaces


<a id="requester"></a>

## requester
**Description:** Who asks for the information to be shared

**Type:** reference

**Expression:** CommunicationRequest.requester

**Path:** CommunicationRequest.requester

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-requester


<a id="status"></a>

## status
**Description:** draft | active | on-hold | revoked | completed | entered-in-error | unknown

**Type:** token

**Expression:** CommunicationRequest.status

**Path:** CommunicationRequest.status

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-status


<a id="subject"></a>

## subject
**Description:** Focus of message

**Type:** reference

**Expression:** CommunicationRequest.subject

**Path:** CommunicationRequest.subject

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-subject


<a id="about"></a>

## about
**Description:** Resources that pertain to this communication request

**Type:** reference

**Expression:** CommunicationRequest.about

**Path:** CommunicationRequest.about

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/CommunicationRequest-about