Usage

An extension to replicate the changes within R5 to support adding a reference to image or data source(DocumentReference).
Context of Use


Tree View

id0..1string
extensionC0..*Extension
url1..1uriFixed Value
valueReferenceReference

Detailed Descriptions

Extension
ShortReference to the image or data source
Definition

DiagnosticReport.media.link maps to R4 DiagnosticReport.media.link. So is mapped as Equivalent.

Cardinality1..1
ConditionsThe 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
Extension.id
ShortUnique 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.

Cardinality0..1
Typestring
Mappings
  • rim: n/a
Extension.extension
ShortAdditional 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.

Cardinality0..*
TypeExtension
Aliasextensions, user content
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.

Slicing

Unordered, Open, by url(Value)

Extensions are always sliced by (at least) url

ConditionsThe 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
Extension.url
Shortidentifies the meaning of the extension
Definition

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

Cardinality1..1
Typeuri
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.

Fixed Value
http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link
Mappings
  • rim: N/A
Extension.value[x]
ShortReference to the image or data source
Definition

DiagnosticReport.media.link maps to R4 DiagnosticReport.media.link. So is mapped as Equivalent.

Cardinality0..1
TypeReference
ConditionsThe 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

Table View

Extension1..1
Extension.idstring0..1
Extension.extensionExtension0..*
Extension.urluri1..1
Extension.value[x]Reference0..1

XML View

<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="ext-R5-DiagnosticReport.me.link" />
<status value="extensions" />
--- We have skipped the narrative for better readability of the resource ---
</text>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
<valueCode value="fhir" />
</extension>
<extension url="http://hl7.org/fhir/StructureDefinition/package-source">
<extension url="packageId">
<valueId value="hl7.fhir.uv.xver-r5.r4" />
</extension>
<extension url="version">
<valueString value="0.0.1-snapshot-2" />
</extension>
</extension>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
<valueInteger value="0">
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
<valueCanonical value="http://hl7.org/fhir/5.0/ImplementationGuide/hl7.fhir.uv.xver-r5.r4" />
</extension>
</valueInteger>
</extension>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="trial-use">
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
<valueCanonical value="http://hl7.org/fhir/5.0/ImplementationGuide/hl7.fhir.uv.xver-r5.r4" />
</extension>
</valueCode>
</extension>
<url value="http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link" />
<version value="0.0.1-snapshot-2" />
<name value="Ext_R5_DiagnosticReport_me_link" />
<title value="Cross-version Extension for R5.DiagnosticReport.media.link for use in FHIR R4" />
<status value="active" />
<experimental value="false" />
<date value="2025-09-01T22:37:19.171963+10:00" />
<publisher value="FHIR Infrastructure" />
<name value="FHIR Infrastructure" />
<system value="url" />
<value value="http://www.hl7.org/Special/committees/fiwg" />
</telecom>
</contact>
<description value="This cross-version extension represents DiagnosticReport.media.link from http://hl7.org/fhir/StructureDefinition/DiagnosticReport|5.0.0 for use in FHIR R4." />
<system value="http://unstats.un.org/unsd/methods/m49/m49.htm" />
<code value="001" />
<display value="World" />
</coding>
</jurisdiction>
<fhirVersion value="4.0.1" />
<identity value="rim" />
<uri value="http://hl7.org/v3" />
<name value="RIM Mapping" />
</mapping>
<kind value="complex-type" />
<abstract value="false" />
<type value="element" />
<expression value="DiagnosticReport.media.link" />
</context>
<type value="Extension" />
<baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension|4.0.1" />
<derivation value="constraint" />
<extension url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version">
<valueString value="4.0.1" />
</extension>
<element id="Extension">
<path value="Extension" />
<short value="Reference to the image or data source" />
<definition value="`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent." />
<min value="1" />
<max value="1" />
<path value="Extension" />
<min value="0" />
<max value="*" />
</base>
<condition value="ele-1" />
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() or (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
<source value="http://hl7.org/fhir/StructureDefinition/Element|4.0.1" />
</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(.), 'value')])" />
<source value="http://hl7.org/fhir/StructureDefinition/Extension|4.0.1" />
</constraint>
<isModifier value="false" />
</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" />
<path value="Element.id" />
<min value="0" />
<max value="1" />
</base>
<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" />
<identity value="rim" />
<map value="n/a" />
</mapping>
</element>
<element id="Extension.extension">
<path value="Extension.extension" />
<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="*" />
<path value="Element.extension" />
<min value="0" />
<max value="*" />
</base>
<code value="Extension" />
</type>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() or (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
<source value="http://hl7.org/fhir/StructureDefinition/Element|4.0.1" />
</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(.), "value")])" />
<source value="http://hl7.org/fhir/StructureDefinition/Extension|4.0.1" />
</constraint>
<isModifier value="false" />
<isSummary value="false" />
<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" />
<path value="Extension.url" />
<min value="1" />
<max value="1" />
</base>
<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://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link" />
<isModifier value="false" />
<isSummary value="false" />
<identity value="rim" />
<map value="N/A" />
</mapping>
</element>
<element id="Extension.value[x]">
<path value="Extension.value[x]" />
<short value="Reference to the image or data source" />
<definition value="`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent." />
<min value="0" />
<max value="1" />
<path value="Extension.value[x]" />
<min value="0" />
<max value="1" />
</base>
<code value="Reference" />
</type>
<key value="ele-1" />
<severity value="error" />
<human value="All FHIR elements must have a @value or children" />
<expression value="hasValue() or (children().count() > id.count())" />
<xpath value="@value|f:*|h:div" />
<source value="http://hl7.org/fhir/StructureDefinition/Element|4.0.1" />
</constraint>
<isModifier value="false" />
<isSummary value="false" />
<identity value="rim" />
<map value="N/A" />
</mapping>
</element>
</snapshot>
<element id="Extension">
<path value="Extension" />
<short value="Reference to the image or data source" />
<definition value="`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent." />
<min value="1" />
<max value="1" />
<path value="Extension" />
<min value="0" />
<max value="*" />
</base>
</element>
<element id="Extension.url">
<path value="Extension.url" />
<min value="1" />
<max value="1" />
<path value="Extension.url" />
<min value="1" />
<max value="1" />
</base>
<fixedUri value="http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link" />
</element>
<element id="Extension.value[x]">
<path value="Extension.value[x]" />
<short value="Reference to the image or data source" />
<definition value="`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent." />
<path value="Extension.value[x]" />
<min value="0" />
<max value="1" />
</base>
<code value="Reference" />
</type>
</element>
</differential>
</StructureDefinition>

JSON View

{
"resourceType": "StructureDefinition",
"id": "ext-R5-DiagnosticReport.me.link",
"text": {
"status": "extensions",
--- We have skipped the narrative for better readability of the resource ---
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
},
{
{
"url": "packageId",
"valueId": "hl7.fhir.uv.xver-r5.r4"
},
{
"url": "version",
"valueString": "0.0.1-snapshot-2"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/package-source"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://hl7.org/fhir/5.0/ImplementationGuide/hl7.fhir.uv.xver-r5.r4"
}
]
}
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "trial-use",
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://hl7.org/fhir/5.0/ImplementationGuide/hl7.fhir.uv.xver-r5.r4"
}
]
}
}
],
"url": "http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link",
"version": "0.0.1-snapshot-2",
"name": "Ext_R5_DiagnosticReport_me_link",
"title": "Cross-version Extension for R5.DiagnosticReport.media.link for use in FHIR R4",
"status": "active",
"experimental": false,
"date": "2025-09-01T22:37:19.171963+10:00",
"publisher": "FHIR Infrastructure",
"contact": [
{
"name": "FHIR Infrastructure",
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
}
],
"description": "This cross-version extension represents DiagnosticReport.media.link from http://hl7.org/fhir/StructureDefinition/DiagnosticReport|5.0.0 for use in FHIR R4.",
{
"coding": [
{
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code": "001",
"display": "World"
}
]
}
],
"fhirVersion": "4.0.1",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"context": [
{
"type": "element",
"expression": "DiagnosticReport.media.link"
}
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1",
"derivation": "constraint",
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "4.0.1"
}
],
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Reference to the image or data source",
"definition": "`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent.",
"min": 1,
"max": "1",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
},
"ele-1"
],
{
"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|4.0.1"
},
{
"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|4.0.1"
}
],
"isModifier": false
},
{
"id": "Extension.id",
"path": "Extension.id",
"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": [
{
{
"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": {
{
"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": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
{
"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|4.0.1"
},
{
"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|4.0.1"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.url",
"path": "Extension.url",
"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": [
{
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "uri"
}
],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"fixedUri": "http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Reference to the image or data source",
"definition": "`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Reference"
}
],
{
"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|4.0.1"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Reference to the image or data source",
"definition": "`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent.",
"min": 1,
"max": "1",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.url",
"path": "Extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Reference to the image or data source",
"definition": "`DiagnosticReport.media.link` maps to R4 `DiagnosticReport.media.link`. So is mapped as Equivalent.",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Reference"
}
]
}
]
}
}