FHIR IG analytics
| Package | hl7.fhir.uv.xver-r4.r3 |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-ext-R4-SubstanceSpecification.code.json |
| FHIR Version | R3 |
| Source | http://hl7.org/fhir/uv/xver-r4.r3/0.1.0/StructureDefinition-ext-R4-SubstanceSpecification.code.html |
| URL | http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.code |
| Version | 0.1.0 |
| Status | active |
| Date | 2026-03-17T21:02:03.8104715+00:00 |
| Name | ExtensionSubstanceSpecification_Code |
| Title | R4: Codes associated with the substance (new) |
| Realm | uv |
| Authority | hl7 |
| Description | R4: `SubstanceSpecification.code` (new:BackboneElement) |
| Purpose | This extension is part of the cross-version definitions generated to enable use of the
element `SubstanceSpecification.code` as defined in FHIR R4
in FHIR STU3.
The source element is defined as:
`SubstanceSpecification.code` 0..* `BackboneElement`
Following are the generation technical comments:
Element `SubstanceSpecification.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.
Element `SubstanceSpecification.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element). |
| Type | Extension |
| Kind | complex-type |
Resources that use this resource
Resources that this resource uses
| StructureDefinition |
| hl7.fhir.uv.xver-r4.r4b#0.1.0 | profile-DocumentReference | Cross-version Profile for R4.DocumentReference for use in FHIR R4B |
Examples of Use for Extension
No extension usage examples found
Narrative
Note: links and images are rebased to the (stated) source
Source1
{
"resourceType": "StructureDefinition",
"id": "ext-R4-SubstanceSpecification.code",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
},
{
"extension": [
{
"url": "packageId",
"valueId": "hl7.fhir.uv.xver-r4.r3"
},
{
"url": "version",
"valueString": "0.1.0"
},
{
"url": "uri",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r3"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/package-source"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 0,
"_valueInteger": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r3"
}
]
}
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "trial-use",
"_valueCode": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4.r3"
}
]
}
}
],
"url": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.code",
"version": "0.1.0",
"name": "ExtensionSubstanceSpecification_Code",
"title": "R4: Codes associated with the substance (new)",
"status": "active",
"experimental": false,
"date": "2026-03-17T21:02:03.8104715+00:00",
"publisher": "FHIR Infrastructure",
"contact": [
{
"name": "FHIR Infrastructure",
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
}
],
"description": "R4: `SubstanceSpecification.code` (new:BackboneElement)",
"jurisdiction": [
{
"coding": [
{
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code": "001",
"display": "World"
}
]
}
],
"purpose": "This extension is part of the cross-version definitions generated to enable use of the\r\nelement `SubstanceSpecification.code` as defined in FHIR R4\r\nin FHIR STU3.\r\n\r\nThe source element is defined as:\r\n`SubstanceSpecification.code` 0..* `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `SubstanceSpecification.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"fhirVersion": "3.0.2",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"contextType": "resource",
"context": [
"Basic"
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: Codes associated with the substance (new)",
"definition": "R4: `SubstanceSpecification.code` (new:BackboneElement)",
"comment": "Element `SubstanceSpecification.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"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() | (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
},
{
"id": "Extension.id",
"path": "Extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"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",
"ordered": false,
"rules": "open"
},
"short": "Extension",
"definition": "An Extension",
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:code",
"path": "Extension.extension",
"sliceName": "code",
"short": "R4: The specific code (new)",
"definition": "R4: `SubstanceSpecification.code.code` (new:CodeableConcept)",
"comment": "Element `SubstanceSpecification.code.code` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.code` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:code.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:code.extension",
"path": "Extension.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. In order 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 is allowed to 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"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:code.url",
"path": "Extension.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": [
{
"code": "uri"
}
],
"fixedUri": "code",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:code.value[x]",
"path": "Extension.extension.value[x]",
"short": "The specific code",
"definition": "The specific code.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "CodeableConcept"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:status",
"path": "Extension.extension",
"sliceName": "status",
"short": "R4: Status of the code assignment (new)",
"definition": "R4: `SubstanceSpecification.code.status` (new:CodeableConcept)",
"comment": "Element `SubstanceSpecification.code.status` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.status` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.status` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.status` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.status` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.status` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:status.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:status.extension",
"path": "Extension.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. In order 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 is allowed to 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"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:status.url",
"path": "Extension.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": [
{
"code": "uri"
}
],
"fixedUri": "status",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:status.value[x]",
"path": "Extension.extension.value[x]",
"short": "Status of the code assignment",
"definition": "Status of the code assignment.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "CodeableConcept"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:statusDate",
"path": "Extension.extension",
"sliceName": "statusDate",
"short": "R4: The date at which the code status is changed as part of the terminology maintenance (new)",
"definition": "R4: `SubstanceSpecification.code.statusDate` (new:dateTime)",
"comment": "Element `SubstanceSpecification.code.statusDate` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.statusDate` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.statusDate` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.statusDate` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.statusDate` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.statusDate` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:statusDate.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:statusDate.extension",
"path": "Extension.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. In order 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 is allowed to 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"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:statusDate.url",
"path": "Extension.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": [
{
"code": "uri"
}
],
"fixedUri": "statusDate",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:statusDate.value[x]",
"path": "Extension.extension.value[x]",
"short": "The date at which the code status is changed as part of the terminology maintenance",
"definition": "The date at which the code status is changed as part of the terminology maintenance.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "dateTime"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:comment",
"path": "Extension.extension",
"sliceName": "comment",
"short": "R4: Any comment can be provided in this field, if necessary (new)",
"definition": "R4: `SubstanceSpecification.code.comment` (new:string)",
"comment": "Element `SubstanceSpecification.code.comment` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.comment` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.comment` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.comment` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.comment` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.comment` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:comment.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:comment.extension",
"path": "Extension.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. In order 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 is allowed to 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"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:comment.url",
"path": "Extension.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": [
{
"code": "uri"
}
],
"fixedUri": "comment",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:comment.value[x]",
"path": "Extension.extension.value[x]",
"short": "Any comment can be provided in this field, if necessary",
"definition": "Any comment can be provided in this field, if necessary.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:source",
"path": "Extension.extension",
"sliceName": "source",
"short": "R4: Supporting literature (new)",
"definition": "R4: `SubstanceSpecification.code.source` (new:Reference(DocumentReference))",
"comment": "Element `SubstanceSpecification.code.source` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.source` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.source` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.source` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.source` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.source` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "*",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
]
},
{
"id": "Extension.extension:source.id",
"path": "Extension.extension.id",
"representation": [
"xmlAttr"
],
"short": "xml:id (or equivalent in JSON)",
"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": [
{
"code": "string"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:source.extension",
"path": "Extension.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. In order 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 is allowed to 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"
}
],
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension:source.url",
"path": "Extension.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": [
{
"code": "uri"
}
],
"fixedUri": "source",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.extension:source.value[x]",
"path": "Extension.extension.value[x]",
"short": "Supporting literature",
"definition": "Supporting literature.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Reference",
"targetProfile": "http://hl7.org/fhir/4.0/StructureDefinition/profile-DocumentReference|0.1.0"
},
{
"code": "Reference",
"targetProfile": "http://hl7.org/fhir/StructureDefinition/DocumentReference"
}
],
"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": [
{
"code": "uri"
}
],
"fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.code",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
"min": 0,
"max": "0",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "base64Binary"
},
{
"code": "boolean"
},
{
"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": "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": "Meta"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: Codes associated with the substance (new)",
"definition": "R4: `SubstanceSpecification.code` (new:BackboneElement)",
"comment": "Element `SubstanceSpecification.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "*",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
},
"isModifier": false
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"ordered": false,
"rules": "open"
},
"min": 0,
"max": "*",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:code",
"path": "Extension.extension",
"sliceName": "code",
"short": "R4: The specific code (new)",
"definition": "R4: `SubstanceSpecification.code.code` (new:CodeableConcept)",
"comment": "Element `SubstanceSpecification.code.code` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.code` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.code` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:code.url",
"path": "Extension.extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "code"
},
{
"id": "Extension.extension:code.value[x]",
"path": "Extension.extension.value[x]",
"short": "The specific code",
"definition": "The specific code.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "CodeableConcept"
}
]
},
{
"id": "Extension.extension:status",
"path": "Extension.extension",
"sliceName": "status",
"short": "R4: Status of the code assignment (new)",
"definition": "R4: `SubstanceSpecification.code.status` (new:CodeableConcept)",
"comment": "Element `SubstanceSpecification.code.status` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.status` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.status` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.status` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.status` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.status` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:status.url",
"path": "Extension.extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "status"
},
{
"id": "Extension.extension:status.value[x]",
"path": "Extension.extension.value[x]",
"short": "Status of the code assignment",
"definition": "Status of the code assignment.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "CodeableConcept"
}
]
},
{
"id": "Extension.extension:statusDate",
"path": "Extension.extension",
"sliceName": "statusDate",
"short": "R4: The date at which the code status is changed as part of the terminology maintenance (new)",
"definition": "R4: `SubstanceSpecification.code.statusDate` (new:dateTime)",
"comment": "Element `SubstanceSpecification.code.statusDate` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.statusDate` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.statusDate` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.statusDate` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.statusDate` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.statusDate` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:statusDate.url",
"path": "Extension.extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "statusDate"
},
{
"id": "Extension.extension:statusDate.value[x]",
"path": "Extension.extension.value[x]",
"short": "The date at which the code status is changed as part of the terminology maintenance",
"definition": "The date at which the code status is changed as part of the terminology maintenance.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "dateTime"
}
]
},
{
"id": "Extension.extension:comment",
"path": "Extension.extension",
"sliceName": "comment",
"short": "R4: Any comment can be provided in this field, if necessary (new)",
"definition": "R4: `SubstanceSpecification.code.comment` (new:string)",
"comment": "Element `SubstanceSpecification.code.comment` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.comment` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.comment` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.comment` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.comment` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.comment` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "1",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:comment.url",
"path": "Extension.extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "comment"
},
{
"id": "Extension.extension:comment.value[x]",
"path": "Extension.extension.value[x]",
"short": "Any comment can be provided in this field, if necessary",
"definition": "Any comment can be provided in this field, if necessary.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "string"
}
]
},
{
"id": "Extension.extension:source",
"path": "Extension.extension",
"sliceName": "source",
"short": "R4: Supporting literature (new)",
"definition": "R4: `SubstanceSpecification.code.source` (new:Reference(DocumentReference))",
"comment": "Element `SubstanceSpecification.code.source` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.source` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.source` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"requirements": "Element `SubstanceSpecification.code.source` is part of an existing definition because parent element `SubstanceSpecification.code` requires a cross-version extension.\nElement `SubstanceSpecification.code.source` is not mapped to FHIR STU3, since FHIR R4 `SubstanceSpecification` is not mapped.\nElement `SubstanceSpecification.code.source` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
"min": 0,
"max": "*",
"base": {
"path": "Extension.extension",
"min": 0,
"max": "*"
}
},
{
"id": "Extension.extension:source.url",
"path": "Extension.extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "source"
},
{
"id": "Extension.extension:source.value[x]",
"path": "Extension.extension.value[x]",
"short": "Supporting literature",
"definition": "Supporting literature.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "Reference",
"targetProfile": "http://hl7.org/fhir/4.0/StructureDefinition/profile-DocumentReference|0.1.0"
},
{
"code": "Reference",
"targetProfile": "http://hl7.org/fhir/StructureDefinition/DocumentReference"
}
]
},
{
"id": "Extension.url",
"path": "Extension.url",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"fixedUri": "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.code"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"min": 0,
"max": "0",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
}
}
]
}
}
Extension 
Slices for extension 
extension:code 
value[x] 
value[x] 
value[x] 
FHIR
FHIRsmith