FHIR IG analytics| Package | hl7.fhir.uv.xver-r4.r3 |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-ext-R4-Observation.value.json |
| FHIR Version | R3 |
| Source | http://hl7.org/fhir/uv/xver-r4.r3/0.1.0/StructureDefinition-ext-R4-Observation.value.html |
| URL | http://hl7.org/fhir/4.0/StructureDefinition/extension-Observation.value |
| Version | 0.1.0 |
| Status | active |
| Date | 2026-03-17T21:02:03.8104715+00:00 |
| Name | ExtensionObservation_Value |
| Title | R4: value additional types |
| Realm | uv |
| Authority | hl7 |
| Description | R4: `Observation.value[x]` additional types (integer) |
| Purpose | This extension is part of the cross-version definitions generated to enable use of the element `Observation.value[x]` as defined in FHIR R4 in FHIR STU3. The source element is defined as: `Observation.value[x]` 0..1 `boolean, CodeableConcept, dateTime, integer, Period, Quantity, Range, Ratio, SampledData, string, time` Following are the generation technical comments: Element `Observation.value[x]` is mapped to FHIR STU3 element `Observation.value[x]` as `SourceIsBroaderThanTarget`. The mappings for `Observation.value[x]` do not cover the following types: integer. The target context `Observation.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `Observation`. |
| Type | Extension |
| Kind | complex-type |
| ConceptMap | ||
| hl7.fhir.uv.xver-r4.r3#0.1.0 | R4-Observation-element-map-to-R3 | Cross-version mapping for FHIR R4 Observation to FHIR STU3 Observation |
No resources found
No extension usage examples found
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition ext-R4-Observation.value
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 0..1 | Extension | R4: value additional types | |
 url | 1..1 | uri | "http://hl7.org/fhir/4.0/StructureDefinition/extension-Observation.value" | |
  value[x] | 0..1 | integer | Actual result | |
| Documentation for this format | ||||
FHIR
FHIRsmith{
"resourceType": "StructureDefinition",
"id": "ext-R4-Observation.value",
"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-Observation.value",
"version": "0.1.0",
"name": "ExtensionObservation_Value",
"title": "R4: value additional types",
"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: `Observation.value[x]` additional types (integer)",
"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 `Observation.value[x]` as defined in FHIR R4\r\nin FHIR STU3.\r\n\r\nThe source element is defined as:\r\n`Observation.value[x]` 0..1 `boolean, CodeableConcept, dateTime, integer, Period, Quantity, Range, Ratio, SampledData, string, time`\r\n\r\nFollowing are the generation technical comments:\r\nElement `Observation.value[x]` is mapped to FHIR STU3 element `Observation.value[x]` as `SourceIsBroaderThanTarget`.\nThe mappings for `Observation.value[x]` do not cover the following types: integer.\nThe target context `Observation.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `Observation`.",
"fhirVersion": "3.0.2",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"contextType": "resource",
"context": [
"Observation"
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: value additional types",
"definition": "R4: `Observation.value[x]` additional types (integer)",
"comment": "Element `Observation.value[x]` is mapped to FHIR STU3 element `Observation.value[x]` as `SourceIsBroaderThanTarget`.\nThe mappings for `Observation.value[x]` do not cover the following types: integer.\nThe target context `Observation.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `Observation`.\nAn observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the [Notes section](https://hl7.org/fhir/observ.html#notes) below.",
"min": 0,
"max": "1",
"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",
"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.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-Observation.value",
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Actual result",
"definition": "The information determined as a result of making the observation, if the information has a simple value.",
"comment": "An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the [Notes section](https://hl7.org/fhir/observ.html#notes) below.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "integer"
}
],
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "R4: value additional types",
"definition": "R4: `Observation.value[x]` additional types (integer)",
"comment": "Element `Observation.value[x]` is mapped to FHIR STU3 element `Observation.value[x]` as `SourceIsBroaderThanTarget`.\nThe mappings for `Observation.value[x]` do not cover the following types: integer.\nThe target context `Observation.value[x]` is a choice-type element and cannot directly hold extensions. The context is moved up to parent element `Observation`.\nAn observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the [Notes section](https://hl7.org/fhir/observ.html#notes) below.",
"min": 0,
"max": "1",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
},
"isModifier": false
},
{
"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-Observation.value"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Actual result",
"definition": "The information determined as a result of making the observation, if the information has a simple value.",
"comment": "An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the [Notes section](https://hl7.org/fhir/observ.html#notes) below.",
"min": 0,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "integer"
}
]
}
]
}
}