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    1. Home
    2. FHIR Artifacts
    3. Extensions
    4. CommunicationBarrier

Draft preBallot - This specification is under preBallot review and subject to change. It should not be used for implementation purposes. . . . . For a full list of available versions, see the Directory of published versions

CommunicationBarrier

Links

Extension

ext-communicationbarrier

Description

The extension is required to identify if the patient speaks/understands an offical language (english/french), or if an interpretor is required.

References to this Extension

PatientCACore

Resource Content

  • Overview
  • Tree view
  • XML
  • JSON
CommunicationBarrier (Extension)IExtension
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

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
extensionI0..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

Sliced:

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url
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
url1..1uriFixed Value
There are no (further) constraints on this element
Element 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/cacore/StructureDefinition/ext-communicationbarrier

Mappings
  • rim: N/A
value[x]0..1Binding
There are no (further) constraints on this element
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).

Binding

CommunicationBarrierValueSet (extensible)

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: N/A
valueBase64Binarybase64Binary
There are no (further) constraints on this element
Data type

base64Binary

valueBooleanboolean
There are no (further) constraints on this element
Data type

boolean

valueCanonicalcanonical()
There are no (further) constraints on this element
Data type

canonical()

valueCodecode
There are no (further) constraints on this element
Data type

code

valueDatedate
There are no (further) constraints on this element
Data type

date

valueDateTimedateTime
There are no (further) constraints on this element
Data type

dateTime

valueDecimaldecimal
There are no (further) constraints on this element
Data type

decimal

valueIdid
There are no (further) constraints on this element
Data type

id

valueInstantinstant
There are no (further) constraints on this element
Data type

instant

valueIntegerinteger
There are no (further) constraints on this element
Data type

integer

valueMarkdownmarkdown
There are no (further) constraints on this element
Data type

markdown

valueOidoid
There are no (further) constraints on this element
Data type

oid

valuePositiveIntpositiveInt
There are no (further) constraints on this element
Data type

positiveInt

valueStringstring
There are no (further) constraints on this element
Data type

string

valueTimetime
There are no (further) constraints on this element
Data type

time

valueUnsignedIntunsignedInt
There are no (further) constraints on this element
Data type

unsignedInt

valueUriuri
There are no (further) constraints on this element
Data type

uri

valueUrlurl
There are no (further) constraints on this element
Data type

url

valueUuiduuid
There are no (further) constraints on this element
Data type

uuid

valueAddressAddress
There are no (further) constraints on this element
Data type

Address

valueAgeAge
There are no (further) constraints on this element
Data type

Age

valueAnnotationAnnotation
There are no (further) constraints on this element
Data type

Annotation

valueAttachmentAttachment
There are no (further) constraints on this element
Data type

Attachment

valueCodeableConceptCodeableConcept
There are no (further) constraints on this element
Data type

CodeableConcept

valueCodingCoding
There are no (further) constraints on this element
Data type

Coding

valueContactPointContactPoint
There are no (further) constraints on this element
Data type

ContactPoint

valueCountCount
There are no (further) constraints on this element
Data type

Count

valueDistanceDistance
There are no (further) constraints on this element
Data type

Distance

valueDurationDuration
There are no (further) constraints on this element
Data type

Duration

valueHumanNameHumanName
There are no (further) constraints on this element
Data type

HumanName

valueIdentifierIdentifier
There are no (further) constraints on this element
Data type

Identifier

valueMoneyMoney
There are no (further) constraints on this element
Data type

Money

valuePeriodPeriod
There are no (further) constraints on this element
Data type

Period

valueQuantityQuantity
There are no (further) constraints on this element
Data type

Quantity

valueRangeRange
There are no (further) constraints on this element
Data type

Range

valueRatioRatio
There are no (further) constraints on this element
Data type

Ratio

valueSampledDataSampledData
There are no (further) constraints on this element
Data type

SampledData

valueSignatureSignature
There are no (further) constraints on this element
Data type

Signature

valueTimingTiming
There are no (further) constraints on this element
Data type

Timing

valueContactDetailContactDetail
There are no (further) constraints on this element
Data type

ContactDetail

valueContributorContributor
There are no (further) constraints on this element
Data type

Contributor

valueDataRequirementDataRequirement
There are no (further) constraints on this element
Data type

DataRequirement

valueExpressionExpression
There are no (further) constraints on this element
Data type

Expression

valueParameterDefinitionParameterDefinition
There are no (further) constraints on this element
Data type

ParameterDefinition

valueRelatedArtifactRelatedArtifact
There are no (further) constraints on this element
Data type

RelatedArtifact

valueTriggerDefinitionTriggerDefinition
There are no (further) constraints on this element
Data type

TriggerDefinition

valueUsageContextUsageContext
There are no (further) constraints on this element
Data type

UsageContext

valueDosageDosage
There are no (further) constraints on this element
Data type

Dosage

valueMetaMeta
There are no (further) constraints on this element
Data type

Meta

valueReferenceReference()
There are no (further) constraints on this element
Data type

Reference()

CommunicationBarrier (Extension)IExtension
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

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
extensionI0..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

Sliced:

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url
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
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/cacore/StructureDefinition/ext-communicationbarrier

Mappings
  • rim: N/A
value[x]0..1BindingElement 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).

Binding

CommunicationBarrierValueSet (extensible)

Constraints
  • ele-1: All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim: N/A
valueBase64Binarybase64Binary
There are no (further) constraints on this element
Data type

base64Binary

valueBooleanboolean
There are no (further) constraints on this element
Data type

boolean

valueCanonicalcanonical()
There are no (further) constraints on this element
Data type

canonical()

valueCodecode
There are no (further) constraints on this element
Data type

code

valueDatedate
There are no (further) constraints on this element
Data type

date

valueDateTimedateTime
There are no (further) constraints on this element
Data type

dateTime

valueDecimaldecimal
There are no (further) constraints on this element
Data type

decimal

valueIdid
There are no (further) constraints on this element
Data type

id

valueInstantinstant
There are no (further) constraints on this element
Data type

instant

valueIntegerinteger
There are no (further) constraints on this element
Data type

integer

valueMarkdownmarkdown
There are no (further) constraints on this element
Data type

markdown

valueOidoid
There are no (further) constraints on this element
Data type

oid

valuePositiveIntpositiveInt
There are no (further) constraints on this element
Data type

positiveInt

valueStringstring
There are no (further) constraints on this element
Data type

string

valueTimetime
There are no (further) constraints on this element
Data type

time

valueUnsignedIntunsignedInt
There are no (further) constraints on this element
Data type

unsignedInt

valueUriuri
There are no (further) constraints on this element
Data type

uri

valueUrlurl
There are no (further) constraints on this element
Data type

url

valueUuiduuid
There are no (further) constraints on this element
Data type

uuid

valueAddressAddress
There are no (further) constraints on this element
Data type

Address

valueAgeAge
There are no (further) constraints on this element
Data type

Age

valueAnnotationAnnotation
There are no (further) constraints on this element
Data type

Annotation

valueAttachmentAttachment
There are no (further) constraints on this element
Data type

Attachment

valueCodeableConceptCodeableConcept
There are no (further) constraints on this element
Data type

CodeableConcept

valueCodingCoding
There are no (further) constraints on this element
Data type

Coding

valueContactPointContactPoint
There are no (further) constraints on this element
Data type

ContactPoint

valueCountCount
There are no (further) constraints on this element
Data type

Count

valueDistanceDistance
There are no (further) constraints on this element
Data type

Distance

valueDurationDuration
There are no (further) constraints on this element
Data type

Duration

valueHumanNameHumanName
There are no (further) constraints on this element
Data type

HumanName

valueIdentifierIdentifier
There are no (further) constraints on this element
Data type

Identifier

valueMoneyMoney
There are no (further) constraints on this element
Data type

Money

valuePeriodPeriod
There are no (further) constraints on this element
Data type

Period

valueQuantityQuantity
There are no (further) constraints on this element
Data type

Quantity

valueRangeRange
There are no (further) constraints on this element
Data type

Range

valueRatioRatio
There are no (further) constraints on this element
Data type

Ratio

valueSampledDataSampledData
There are no (further) constraints on this element
Data type

SampledData

valueSignatureSignature
There are no (further) constraints on this element
Data type

Signature

valueTimingTiming
There are no (further) constraints on this element
Data type

Timing

valueContactDetailContactDetail
There are no (further) constraints on this element
Data type

ContactDetail

valueContributorContributor
There are no (further) constraints on this element
Data type

Contributor

valueDataRequirementDataRequirement
There are no (further) constraints on this element
Data type

DataRequirement

valueExpressionExpression
There are no (further) constraints on this element
Data type

Expression

valueParameterDefinitionParameterDefinition
There are no (further) constraints on this element
Data type

ParameterDefinition

valueRelatedArtifactRelatedArtifact
There are no (further) constraints on this element
Data type

RelatedArtifact

valueTriggerDefinitionTriggerDefinition
There are no (further) constraints on this element
Data type

TriggerDefinition

valueUsageContextUsageContext
There are no (further) constraints on this element
Data type

UsageContext

valueDosageDosage
There are no (further) constraints on this element
Data type

Dosage

valueMetaMeta
There are no (further) constraints on this element
Data type

Meta

valueReferenceReference()
There are no (further) constraints on this element
Data type

Reference()

<StructureDefinition xmlns="http://hl7.org/fhir">
    <id value="ext-communicationbarrier" />
    <url value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/ext-communicationbarrier" />
    <name value="CommunicationBarrier" />
    <title value="Communication Barrier" />
    <status value="draft" />
    <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="The extension is required to identify if the patient speaks/understands an offical language (english/french), or if an interpretor is required." />
    <jurisdiction>
        <coding>
            <system value="urn:iso:std:iso:3166" />
            <code value="CA" />
        </coding>
    </jurisdiction>
    <copyright value="Copyright &#169; 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="Patient.communication" />
    </context>
    <type value="Extension" />
    <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
    <derivation value="constraint" />
    <snapshot>
        <element id="Extension">
            <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
                <valueCode value="normative" />
            </extension>
            <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
                <valueCode value="4.0.0" />
            </extension>
            <path value="Extension" />
            <short value="Optional Extensions Element" />
            <definition value="Optional Extension Element - found in all resources." />
            <min value="0" />
            <max value="*" />
            <base>
                <path value="Extension" />
                <min value="0" />
                <max value="*" />
            </base>
            <condition value="ele-1" />
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &#39;value&#39;)])" />
            </constraint>
            <isModifier value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Extension.id">
            <path value="Extension.id" />
            <representation value="xmlAttr" />
            <short value="Unique id for inter-element referencing" />
            <definition value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Element.id" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
                    <valueUrl value="string" />
                </extension>
                <code value="http://hl7.org/fhirpath/System.String" />
            </type>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Extension.extension">
            <path value="Extension.extension" />
            <slicing>
                <discriminator>
                    <type value="value" />
                    <path value="url" />
                </discriminator>
                <description value="Extensions are always sliced by (at least) url" />
                <rules value="open" />
            </slicing>
            <short value="Additional content defined by implementations" />
            <definition value="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." />
            <comment value="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." />
            <alias value="extensions" />
            <alias value="user content" />
            <min value="0" />
            <max value="0" />
            <base>
                <path value="Element.extension" />
                <min value="0" />
                <max value="*" />
            </base>
            <type>
                <code value="Extension" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <constraint>
                <key value="ext-1" />
                <severity value="error" />
                <human value="Must have either extensions or value[x], not both" />
                <expression value="extension.exists() != value.exists()" />
                <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])" />
                <source value="http://hl7.org/fhir/StructureDefinition/Extension" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="n/a" />
            </mapping>
        </element>
        <element id="Extension.url">
            <path value="Extension.url" />
            <representation value="xmlAttr" />
            <short value="identifies the meaning of the extension" />
            <definition value="Source of the definition for the extension code - a logical name or a URL." />
            <comment value="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." />
            <min value="1" />
            <max value="1" />
            <base>
                <path value="Extension.url" />
                <min value="1" />
                <max value="1" />
            </base>
            <type>
                <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
                    <valueUrl value="uri" />
                </extension>
                <code value="http://hl7.org/fhirpath/System.String" />
            </type>
            <fixedUri value="http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/ext-communicationbarrier" />
            <isModifier value="false" />
            <isSummary value="false" />
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
        <element id="Extension.value[x]">
            <path value="Extension.value[x]" />
            <short value="Value of extension" />
            <definition value="Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list)." />
            <min value="0" />
            <max value="1" />
            <base>
                <path value="Extension.value[x]" />
                <min value="0" />
                <max value="1" />
            </base>
            <type>
                <code value="base64Binary" />
            </type>
            <type>
                <code value="boolean" />
            </type>
            <type>
                <code value="canonical" />
            </type>
            <type>
                <code value="code" />
            </type>
            <type>
                <code value="date" />
            </type>
            <type>
                <code value="dateTime" />
            </type>
            <type>
                <code value="decimal" />
            </type>
            <type>
                <code value="id" />
            </type>
            <type>
                <code value="instant" />
            </type>
            <type>
                <code value="integer" />
            </type>
            <type>
                <code value="markdown" />
            </type>
            <type>
                <code value="oid" />
            </type>
            <type>
                <code value="positiveInt" />
            </type>
            <type>
                <code value="string" />
            </type>
            <type>
                <code value="time" />
            </type>
            <type>
                <code value="unsignedInt" />
            </type>
            <type>
                <code value="uri" />
            </type>
            <type>
                <code value="url" />
            </type>
            <type>
                <code value="uuid" />
            </type>
            <type>
                <code value="Address" />
            </type>
            <type>
                <code value="Age" />
            </type>
            <type>
                <code value="Annotation" />
            </type>
            <type>
                <code value="Attachment" />
            </type>
            <type>
                <code value="CodeableConcept" />
            </type>
            <type>
                <code value="Coding" />
            </type>
            <type>
                <code value="ContactPoint" />
            </type>
            <type>
                <code value="Count" />
            </type>
            <type>
                <code value="Distance" />
            </type>
            <type>
                <code value="Duration" />
            </type>
            <type>
                <code value="HumanName" />
            </type>
            <type>
                <code value="Identifier" />
            </type>
            <type>
                <code value="Money" />
            </type>
            <type>
                <code value="Period" />
            </type>
            <type>
                <code value="Quantity" />
            </type>
            <type>
                <code value="Range" />
            </type>
            <type>
                <code value="Ratio" />
            </type>
            <type>
                <code value="Reference" />
            </type>
            <type>
                <code value="SampledData" />
            </type>
            <type>
                <code value="Signature" />
            </type>
            <type>
                <code value="Timing" />
            </type>
            <type>
                <code value="ContactDetail" />
            </type>
            <type>
                <code value="Contributor" />
            </type>
            <type>
                <code value="DataRequirement" />
            </type>
            <type>
                <code value="Expression" />
            </type>
            <type>
                <code value="ParameterDefinition" />
            </type>
            <type>
                <code value="RelatedArtifact" />
            </type>
            <type>
                <code value="TriggerDefinition" />
            </type>
            <type>
                <code value="UsageContext" />
            </type>
            <type>
                <code value="Dosage" />
            </type>
            <type>
                <code value="Meta" />
            </type>
            <constraint>
                <key value="ele-1" />
                <severity value="error" />
                <human value="All FHIR elements must have a @value or children" />
                <expression value="hasValue() or (children().count() &gt; id.count())" />
                <xpath value="@value|f:*|h:div" />
                <source value="http://hl7.org/fhir/StructureDefinition/Element" />
            </constraint>
            <isModifier value="false" />
            <isSummary value="false" />
            <binding>
                <strength value="extensible" />
                <valueSet value="http://fhir.infoway-inforoute.ca/io/cacore/ValueSet/communication-barrier" />
            </binding>
            <mapping>
                <identity value="rim" />
                <map value="N/A" />
            </mapping>
        </element>
    </snapshot>
    <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/cacore/StructureDefinition/ext-communicationbarrier" />
        </element>
        <element id="Extension.value[x]">
            <path value="Extension.value[x]" />
            <binding>
                <strength value="extensible" />
                <valueSet value="http://fhir.infoway-inforoute.ca/io/cacore/ValueSet/communication-barrier" />
            </binding>
        </element>
    </differential>
</StructureDefinition>
{
    "resourceType": "StructureDefinition",
    "id": "ext-communicationbarrier",
    "url": "http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/ext-communicationbarrier",
    "name": "CommunicationBarrier",
    "title": "Communication Barrier",
    "status": "draft",
    "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": "The extension is required to identify if the patient speaks/understands an offical language (english/french), or if an interpretor is required.",
    "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": "Patient.communication"
        }
    ],
    "type": "Extension",
    "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
    "derivation": "constraint",
    "snapshot": {
        "element":  [
            {
                "id": "Extension",
                "extension":  [
                    {
                        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
                        "valueCode": "normative"
                    },
                    {
                        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
                        "valueCode": "4.0.0"
                    }
                ],
                "path": "Extension",
                "short": "Optional Extensions Element",
                "definition": "Optional Extension Element - found in all resources.",
                "min": 0,
                "max": "*",
                "base": {
                    "path": "Extension",
                    "min": 0,
                    "max": "*"
                },
                "condition":  [
                    "ele-1"
                ],
                "constraint":  [
                    {
                        "key": "ele-1",
                        "severity": "error",
                        "human": "All FHIR elements must have a @value or children",
                        "expression": "hasValue() or (children().count() > id.count())",
                        "xpath": "@value|f:*|h:div",
                        "source": "http://hl7.org/fhir/StructureDefinition/Element"
                    },
                    {
                        "key": "ext-1",
                        "severity": "error",
                        "human": "Must have either extensions or value[x], not both",
                        "expression": "extension.exists() != value.exists()",
                        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"
                    }
                ],
                "isModifier": false,
                "mapping":  [
                    {
                        "identity": "rim",
                        "map": "n/a"
                    },
                    {
                        "identity": "rim",
                        "map": "N/A"
                    }
                ]
            },
            {
                "id": "Extension.id",
                "path": "Extension.id",
                "representation":  [
                    "xmlAttr"
                ],
                "short": "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.",
                "min": 0,
                "max": "1",
                "base": {
                    "path": "Element.id",
                    "min": 0,
                    "max": "1"
                },
                "type":  [
                    {
                        "extension":  [
                            {
                                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                                "valueUrl": "string"
                            }
                        ],
                        "code": "http://hl7.org/fhirpath/System.String"
                    }
                ],
                "isModifier": false,
                "isSummary": false,
                "mapping":  [
                    {
                        "identity": "rim",
                        "map": "n/a"
                    }
                ]
            },
            {
                "id": "Extension.extension",
                "path": "Extension.extension",
                "slicing": {
                    "discriminator":  [
                        {
                            "type": "value",
                            "path": "url"
                        }
                    ],
                    "description": "Extensions are always sliced by (at least) url",
                    "rules": "open"
                },
                "short": "Additional content defined by implementations",
                "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.",
                "comment": "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.",
                "alias":  [
                    "extensions",
                    "user content"
                ],
                "min": 0,
                "max": "0",
                "base": {
                    "path": "Element.extension",
                    "min": 0,
                    "max": "*"
                },
                "type":  [
                    {
                        "code": "Extension"
                    }
                ],
                "constraint":  [
                    {
                        "key": "ele-1",
                        "severity": "error",
                        "human": "All FHIR elements must have a @value or children",
                        "expression": "hasValue() or (children().count() > id.count())",
                        "xpath": "@value|f:*|h:div",
                        "source": "http://hl7.org/fhir/StructureDefinition/Element"
                    },
                    {
                        "key": "ext-1",
                        "severity": "error",
                        "human": "Must have either extensions or value[x], not both",
                        "expression": "extension.exists() != value.exists()",
                        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
                        "source": "http://hl7.org/fhir/StructureDefinition/Extension"
                    }
                ],
                "isModifier": false,
                "isSummary": false,
                "mapping":  [
                    {
                        "identity": "rim",
                        "map": "n/a"
                    }
                ]
            },
            {
                "id": "Extension.url",
                "path": "Extension.url",
                "representation":  [
                    "xmlAttr"
                ],
                "short": "identifies the meaning of the extension",
                "definition": "Source of the definition for the extension code - a logical name or a URL.",
                "comment": "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.",
                "min": 1,
                "max": "1",
                "base": {
                    "path": "Extension.url",
                    "min": 1,
                    "max": "1"
                },
                "type":  [
                    {
                        "extension":  [
                            {
                                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                                "valueUrl": "uri"
                            }
                        ],
                        "code": "http://hl7.org/fhirpath/System.String"
                    }
                ],
                "fixedUri": "http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/ext-communicationbarrier",
                "isModifier": false,
                "isSummary": false,
                "mapping":  [
                    {
                        "identity": "rim",
                        "map": "N/A"
                    }
                ]
            },
            {
                "id": "Extension.value[x]",
                "path": "Extension.value[x]",
                "short": "Value of extension",
                "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list).",
                "min": 0,
                "max": "1",
                "base": {
                    "path": "Extension.value[x]",
                    "min": 0,
                    "max": "1"
                },
                "type":  [
                    {
                        "code": "base64Binary"
                    },
                    {
                        "code": "boolean"
                    },
                    {
                        "code": "canonical"
                    },
                    {
                        "code": "code"
                    },
                    {
                        "code": "date"
                    },
                    {
                        "code": "dateTime"
                    },
                    {
                        "code": "decimal"
                    },
                    {
                        "code": "id"
                    },
                    {
                        "code": "instant"
                    },
                    {
                        "code": "integer"
                    },
                    {
                        "code": "markdown"
                    },
                    {
                        "code": "oid"
                    },
                    {
                        "code": "positiveInt"
                    },
                    {
                        "code": "string"
                    },
                    {
                        "code": "time"
                    },
                    {
                        "code": "unsignedInt"
                    },
                    {
                        "code": "uri"
                    },
                    {
                        "code": "url"
                    },
                    {
                        "code": "uuid"
                    },
                    {
                        "code": "Address"
                    },
                    {
                        "code": "Age"
                    },
                    {
                        "code": "Annotation"
                    },
                    {
                        "code": "Attachment"
                    },
                    {
                        "code": "CodeableConcept"
                    },
                    {
                        "code": "Coding"
                    },
                    {
                        "code": "ContactPoint"
                    },
                    {
                        "code": "Count"
                    },
                    {
                        "code": "Distance"
                    },
                    {
                        "code": "Duration"
                    },
                    {
                        "code": "HumanName"
                    },
                    {
                        "code": "Identifier"
                    },
                    {
                        "code": "Money"
                    },
                    {
                        "code": "Period"
                    },
                    {
                        "code": "Quantity"
                    },
                    {
                        "code": "Range"
                    },
                    {
                        "code": "Ratio"
                    },
                    {
                        "code": "Reference"
                    },
                    {
                        "code": "SampledData"
                    },
                    {
                        "code": "Signature"
                    },
                    {
                        "code": "Timing"
                    },
                    {
                        "code": "ContactDetail"
                    },
                    {
                        "code": "Contributor"
                    },
                    {
                        "code": "DataRequirement"
                    },
                    {
                        "code": "Expression"
                    },
                    {
                        "code": "ParameterDefinition"
                    },
                    {
                        "code": "RelatedArtifact"
                    },
                    {
                        "code": "TriggerDefinition"
                    },
                    {
                        "code": "UsageContext"
                    },
                    {
                        "code": "Dosage"
                    },
                    {
                        "code": "Meta"
                    }
                ],
                "constraint":  [
                    {
                        "key": "ele-1",
                        "severity": "error",
                        "human": "All FHIR elements must have a @value or children",
                        "expression": "hasValue() or (children().count() > id.count())",
                        "xpath": "@value|f:*|h:div",
                        "source": "http://hl7.org/fhir/StructureDefinition/Element"
                    }
                ],
                "isModifier": false,
                "isSummary": false,
                "binding": {
                    "strength": "extensible",
                    "valueSet": "http://fhir.infoway-inforoute.ca/io/cacore/ValueSet/communication-barrier"
                },
                "mapping":  [
                    {
                        "identity": "rim",
                        "map": "N/A"
                    }
                ]
            }
        ]
    },
    "differential": {
        "element":  [
            {
                "id": "Extension.extension",
                "path": "Extension.extension",
                "max": "0"
            },
            {
                "id": "Extension.url",
                "path": "Extension.url",
                "fixedUri": "http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/ext-communicationbarrier"
            },
            {
                "id": "Extension.value[x]",
                "path": "Extension.value[x]",
                "binding": {
                    "strength": "extensible",
                    "valueSet": "http://fhir.infoway-inforoute.ca/io/cacore/ValueSet/communication-barrier"
                }
            }
        ]
    }
}

Terminology bindings

PathConformanceValueSet
Extension.value[x]extensiblehttp://fhir.infoway-inforoute.ca/io/cacore/ValueSet/communication-barrier

Table of Contents | IG © based on FHIR R4 | Package package:ca.infoway.io.core@1.0.0-dft-preballot | Version History
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