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    1. Index
    2. FHIR Artifacts
    3. Extensions
    4. CopiedParticipants

1.2.0-DFT - The specification is version 1.2.0-DFT of CA Core+ For a full list of available versions, see the Directory of published versions

CopiedParticipants

Links

Extension

copied-participants-ext

Description

Extension used to CC updates to the ServiceRequest in cases of forwarding referrals

References to this Extension

ServiceRequestCACore

Standards Status FMM
trial-use 2

Resource Content

  • Overview
  • Tree view
  • XML
  • JSON
CopiedParticipants (Extension)Extension
There are no (further) constraints on this element
Data type

Extension

extension..0
There are no (further) constraints on this element
Element id
Extension.extension
urlFixed Value
There are no (further) constraints on this element
Element id
Extension.url
Fixed value
http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-copied-participants
value[x]Reference(PractitionerCACore)
There are no (further) constraints on this element
Element id
Extension.value[x]
Data type

Reference(PractitionerCACore)

referenceS
There are no (further) constraints on this element
Element id
Extension.value[x].reference
identifierS
There are no (further) constraints on this element
Element id
Extension.value[x].identifier
systemS1..
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.system
valueS1..
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.value
CopiedParticipants (Extension)CExtension
There are no (further) constraints on this element
Element id
Extension
Short description

Optional Extensions Element

Definition

Optional Extension Element - found in all resources.

Data type

Extension

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1: Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim: n/a
  • rim: N/A
id0..1string
There are no (further) constraints on this element
Element id
Extension.id
Short description

Unique id for inter-element referencing

Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Data type

string

Mappings
  • rim: n/a
extensionC0..0Extension
There are no (further) constraints on this element
Element id
Extension.extension
Short description

Additional content defined by implementations

Alternate names

extensions, user content

Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Data type

Extension

Slicing

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1: Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim: n/a
  • rim: N/A
url1..1uriFixed ValueElement id
Extension.url
Short description

identifies the meaning of the extension

Definition

Source of the definition for the extension code - a logical name or a URL.

Comments

The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

Data type

uri

Fixed value
http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-copied-participants
Mappings
  • rim: N/A
value[x]0..1Reference(PractitionerCACore)Element id
Extension.value[x]
Short description

Value of extension

Definition

Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

Data type

Reference(PractitionerCACore)

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • rim: N/A
id0..1string
There are no (further) constraints on this element
Element id
Extension.value[x].id
Short description

Unique id for inter-element referencing

Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Data type

string

Mappings
  • rim: n/a
extensionC0..*Extension
There are no (further) constraints on this element
Element id
Extension.value[x].extension
Short description

Additional content defined by implementations

Alternate names

extensions, user content

Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Data type

Extension

Slicing

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1: Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim: n/a
  • rim: N/A
referenceS Σ C0..1string
There are no (further) constraints on this element
Element id
Extension.value[x].reference
Short description

Literal reference, Relative, internal or absolute URL

Definition

A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Data type

string

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1, ref-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • rim: N/A
typeΣ0..1uriBinding
There are no (further) constraints on this element
Element id
Extension.value[x].type
Short description

Type the reference refers to (e.g. "Patient")

Definition

The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Data type

uri

Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • rim: N/A
identifierS Σ0..1Identifier
There are no (further) constraints on this element
Element id
Extension.value[x].identifier
Short description

Logical reference, when literal reference is not known

Definition

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Data type

Identifier

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim: II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd: Identifier
  • rim: .identifier
id0..1string
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.id
Short description

Unique id for inter-element referencing

Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Data type

string

Mappings
  • rim: n/a
extensionC0..*Extension
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.extension
Short description

Additional content defined by implementations

Alternate names

extensions, user content

Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Data type

Extension

Slicing

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1: Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim: n/a
  • rim: N/A
useΣ ?!0..1codeBinding
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.use
Short description

usual | official | temp | secondary | old (If known)

Definition

The purpose of this identifier.

Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Data type

code

Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: N/A
  • rim: Role.code or implied by context
typeΣ0..1CodeableConceptBinding
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.type
Short description

Description of identifier

Definition

A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Data type

CodeableConcept

Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • v2: CE/CNE/CWE
  • rim: CD
  • orim: fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2: CX.5
  • rim: Role.code or implied by context
systemS Σ1..1uri
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.system
Short description

The namespace for the identifier value

Definition

Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Data type

uri

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General
http://www.acme.com/identifiers/patient
Mappings
  • rim: n/a
  • v2: CX.4 / EI-2-4
  • rim: II.root or Role.id.root
  • servd: ./IdentifierType
valueS Σ1..1string
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.value
Short description

The value that is unique

Definition

The portion of the identifier typically relevant to the user and which is unique within the context of the system.

Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Data type

string

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General
123456
Mappings
  • rim: n/a
  • v2: CX.1 / EI.1
  • rim: II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd: ./Value
periodΣ C0..1Period
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.period
Short description

Time period when id is/was valid for use

Definition

Time period during which identifier is/was valid for use.

Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Data type

Period

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1: If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim: n/a
  • v2: DR
  • rim: IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2: CX.7 + CX.8
  • rim: Role.effectiveTime or implied by context
  • servd: ./StartDate and ./EndDate
assignerΣ C0..1Reference(Organization)
There are no (further) constraints on this element
Element id
Extension.value[x].identifier.assigner
Short description

Organization that issued id (may be just text)

Definition

Organization that issued/manages the identifier.

Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Data type

Reference(Organization)

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1: SHALL have a contained resource if a local reference is provided
    reference.exists() implies (reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids')) or (reference='#' and %rootResource!=%resource))
Mappings
  • rim: n/a
  • rim: The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2: CX.4 / (CX.4,CX.9,CX.10)
  • rim: II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd: ./IdentifierIssuingAuthority
displayΣ0..1string
There are no (further) constraints on this element
Element id
Extension.value[x].display
Short description

Text alternative for the resource

Definition

Plain text narrative that identifies the resource in addition to the resource reference.

Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Data type

string

Conditions

The cardinality or value of this element may be affected by these constraints: ele-1

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: n/a
  • rim: N/A
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="copied-participants-ext" />
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="trial-use" />
</extension>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
<valueInteger value="2" />
</extension>
<url value="http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-copied-participants" />
<version value="1.1.0" />
<name value="CopiedParticipants" />
<title value="Copied Participants" />
<status value="active" />
<experimental value="false" />
<publisher value="Canada Health Infoway" />
<contact>
<name value="National Standards Release Centre" />
<telecom>
<system value="url" />
<value value="http://www.infoway-inforoute.ca" />
</telecom>
<telecom>
<system value="email" />
<value value="standards@infoway-inforoute.ca" />
</telecom>
</contact>
<description value="Extension used to CC updates to the ServiceRequest in cases of forwarding referrals" />
<jurisdiction>
<coding>
<system value="urn:iso:std:iso:3166" />
<code value="CA" />
</coding>
</jurisdiction>
<copyright value="Copyright © 2025+ Canada Health Infoway. All rights reserved. [Terms of Use and License Agreements](https://ic.infoway-inforoute.ca/en/about/tou). [Privacy Policy](https://www.infoway-inforoute.ca/en/legal/privacy-policy)." />
<fhirVersion value="4.0.1" />
<kind value="complex-type" />
<abstract value="false" />
<context>
<type value="element" />
<expression value="ServiceRequest" />
</context>
<type value="Extension" />
<baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
<derivation value="constraint" />
<differential>
<element id="Extension.extension">
<path value="Extension.extension" />
<max value="0" />
</element>
<element id="Extension.url">
<path value="Extension.url" />
<fixedUri value="http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-copied-participants" />
</element>
<element id="Extension.value[x]">
<path value="Extension.value[x]" />
<type>
<code value="Reference" />
<targetProfile value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/practitioner-ca-core" />
</type>
</element>
<element id="Extension.value[x].reference">
<path value="Extension.value[x].reference" />
<mustSupport value="true" />
</element>
<element id="Extension.value[x].identifier">
<path value="Extension.value[x].identifier" />
<mustSupport value="true" />
</element>
<element id="Extension.value[x].identifier.system">
<path value="Extension.value[x].identifier.system" />
<min value="1" />
<mustSupport value="true" />
</element>
<element id="Extension.value[x].identifier.value">
<path value="Extension.value[x].identifier.value" />
<min value="1" />
<mustSupport value="true" />
</element>
</differential>
</StructureDefinition>
{
"resourceType": "StructureDefinition",
"id": "copied-participants-ext",
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "trial-use"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 2
}
],
"url": "http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-copied-participants",
"version": "1.1.0",
"name": "CopiedParticipants",
"title": "Copied Participants",
"status": "active",
"experimental": false,
"publisher": "Canada Health Infoway",
"contact": [
{
"name": "National Standards Release Centre",
"telecom": [
{
"system": "url",
"value": "http://www.infoway-inforoute.ca"
},
{
"system": "email",
"value": "standards@infoway-inforoute.ca"
}
]
}
],
"description": "Extension used to CC updates to the ServiceRequest in cases of forwarding referrals",
"jurisdiction": [
{
"coding": [
{
"system": "urn:iso:std:iso:3166",
"code": "CA"
}
]
}
],
"copyright": "Copyright © 2025+ Canada Health Infoway. All rights reserved. [Terms of Use and License Agreements](https://ic.infoway-inforoute.ca/en/about/tou). [Privacy Policy](https://www.infoway-inforoute.ca/en/legal/privacy-policy).",
"fhirVersion": "4.0.1",
"kind": "complex-type",
"abstract": false,
"context": [
{
"type": "element",
"expression": "ServiceRequest"
}
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"differential": {
"element": [
{
"id": "Extension.extension",
"path": "Extension.extension",
"max": "0"
},
{
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://fhir.infoway-inforoute.ca/ca-ext/StructureDefinition/servicerequest-copied-participants"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"type": [
{
"code": "Reference",
"targetProfile": [
"http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/practitioner-ca-core"
]
}
]
},
{
"id": "Extension.value[x].reference",
"path": "Extension.value[x].reference",
"mustSupport": true
},
{
"id": "Extension.value[x].identifier",
"path": "Extension.value[x].identifier",
"mustSupport": true
},
{
"id": "Extension.value[x].identifier.system",
"path": "Extension.value[x].identifier.system",
"min": 1,
"mustSupport": true
},
{
"id": "Extension.value[x].identifier.value",
"path": "Extension.value[x].identifier.value",
"min": 1,
"mustSupport": true
}
]
}
}

Terminology bindings

IG © based on FHIR R4 | Package project:CA-Core
Copyright © 2026 Canada Health Infoway. All rights reserved. Terms of Use & License Agreements. Privacy Policy.
HL7® and FHIR® are the registered trademarks of Health Level Seven International