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Packagehl7.fhir.uv.xver-r5.r3
Resource TypeStructureDefinition
IdStructureDefinition-ext-R5-Measure.gro.str.component.json
FHIR VersionR3
Sourcehttp://hl7.org/fhir/uv/xver-r5.r3/0.1.0/StructureDefinition-ext-R5-Measure.gro.str.component.html
URLhttp://hl7.org/fhir/5.0/StructureDefinition/extension-Measure.group.stratifier.component
Version0.1.0
Statusactive
Date2026-03-17T21:02:03.8104715+00:00
NameExtensionMeasure_Group_Stratifier_Component
TitleR5: Stratifier criteria component for the measure (new)
Realmuv
Authorityhl7
DescriptionR5: `Measure.group.stratifier.component` (new:BackboneElement)
PurposeThis extension is part of the cross-version definitions generated to enable use of the element `Measure.group.stratifier.component` as defined in FHIR R5 in FHIR STU3. The source element is defined as: `Measure.group.stratifier.component` 0..* `BackboneElement` Across FHIR versions, the element set has been mapped as: * R5: `Measure.group.stratifier.component` 0..* `BackboneElement` * R4B: `Measure.group.stratifier.component` 0..* `BackboneElement` * R4: `Measure.group.stratifier.component` 0..* `BackboneElement` Following are the generation technical comments: Element `Measure.group.stratifier.component` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`. Element `Measure.group.stratifier.component` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).
TypeExtension
Kindcomplex-type

Resources that use this resource

ConceptMap
hl7.fhir.uv.xver-r5.r3#0.1.0R5-Measure-element-map-to-R3Cross-version mapping for FHIR R5 Measure to FHIR STU3 Measure

Resources that this resource uses

StructureDefinition
hl7.fhir.uv.xver-r5.r4#0.1.0profile-GroupCross-version Profile for R5.Group for use in FHIR R4
ValueSet
hl7.fhir.uv.xver-r5.r3#0.1.0R5-measure-stratifier-example-for-R3Cross-version ValueSet R5.MeasureStratifierExample for use in FHIR STU3

Examples of Use for Extension

No extension usage examples found


Narrative

Note: links and images are rebased to the (stated) source

Generated Narrative: StructureDefinition ext-R5-Measure.gro.str.component

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..*ExtensionR5: Stratifier criteria component for the measure (new)
... Slices for extension 0..*ExtensionExtension
Slice: Unordered, Open by value:url
.... extension:linkId 0..1ExtensionR5: Unique id for stratifier component in measure (new)
..... url 1..1uri"linkId"
..... value[x] 0..1stringUnique id for stratifier component in measure
.... extension:code 0..1ExtensionR5: Meaning of the stratifier component (new)
..... url 1..1uri"code"
..... value[x] 0..1CodeableConceptMeaning of the stratifier component
Binding: R5MeasureStratifierExampleForR3 (0.1.0) (example): Meaning of the stratifier.
.... extension:description 0..1ExtensionR5: The human readable description of this stratifier component (new)
..... url 1..1uri"description"
..... value[x] 0..1markdownThe human readable description of this stratifier component
.... extension:criteria 0..1ExtensionR5: Component of how the measure should be stratified (new)
..... Slices for extension 0..*ExtensionExtension
Slice: Unordered, Open by value:url
...... extension:_datatype 1..1ExtensionDataType slice for a FHIR R5 `Expression` value
....... url 1..1uri"http://hl7.org/fhir/StructureDefinition/_datatype"
....... value[x] 1..1stringValue of extension
Fixed Value: Expression
...... extension:description 0..1ExtensionR5: Natural language description of the condition (new)
....... url 1..1uri"description"
....... value[x] 0..1stringNatural language description of the condition
...... extension:name 0..1ExtensionR5: Short name assigned to expression for reuse (new)
....... url 1..1uri"name"
....... value[x] 0..1codeShort name assigned to expression for reuse
...... extension:language 0..1ExtensionR5: text/cql | text/fhirpath | application/x-fhir-query | etc. (new)
....... url 1..1uri"language"
....... value[x] 0..1codetext/cql | text/fhirpath | application/x-fhir-query | etc.
...... extension:expression 0..1ExtensionR5: Expression in specified language (new)
....... url 1..1uri"expression"
....... value[x] 0..1stringExpression in specified language
...... extension:reference 0..1ExtensionR5: Where the expression is found (new)
....... url 1..1uri"reference"
....... value[x] 0..1uriWhere the expression is found
..... url 1..1uri"criteria"
..... value[x] 0..0Value of extension
.... extension:groupDefinition 0..1ExtensionR5: A group resource that defines this population (new)
..... url 1..1uri"groupDefinition"
..... value[x] 0..1Reference(Cross-version Profile for R5.Group for use in FHIR STU3(0.1.0) | Group)A group resource that defines this population
... url 1..1uri"http://hl7.org/fhir/5.0/StructureDefinition/extension-Measure.group.stratifier.component"
... value[x] 0..0Value of extension

doco Documentation for this format

Source1

{
  "resourceType": "StructureDefinition",
  "id": "ext-R5-Measure.gro.str.component",
  "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-r5.r3"
        },
        {
          "url": "version",
          "valueString": "0.1.0"
        },
        {
          "url": "uri",
          "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r5.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-r5.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-r5.r3"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/5.0/StructureDefinition/extension-Measure.group.stratifier.component",
  "version": "0.1.0",
  "name": "ExtensionMeasure_Group_Stratifier_Component",
  "title": "R5: Stratifier criteria component for the measure (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": "R5: `Measure.group.stratifier.component` (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 `Measure.group.stratifier.component` as defined in FHIR R5\r\nin FHIR STU3.\r\n\r\nThe source element is defined as:\r\n`Measure.group.stratifier.component` 0..* `BackboneElement`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n*  R5: `Measure.group.stratifier.component` 0..* `BackboneElement`\n*  R4B: `Measure.group.stratifier.component` 0..* `BackboneElement`\n*  R4: `Measure.group.stratifier.component` 0..* `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `Measure.group.stratifier.component` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component` 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": [
    "Measure.group.stratifier"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "snapshot": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "R5: Stratifier criteria component for the measure (new)",
        "definition": "R5: `Measure.group.stratifier.component` (new:BackboneElement)",
        "comment": "Element `Measure.group.stratifier.component` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nStratifiers are defined either as a single criteria, or as a set of component criteria.",
        "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:linkId",
        "path": "Extension.extension",
        "sliceName": "linkId",
        "short": "R5: Unique id for stratifier component in measure (new)",
        "definition": "R5: `Measure.group.stratifier.component.linkId` (new:string)",
        "comment": "Element `Measure.group.stratifier.component.linkId` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.linkId` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.linkId` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nThis ''can'' be a meaningful identifier (e.g. a LOINC code) but is not intended to have any meaning.  GUIDs or sequential numbers are appropriate here.\n\nLinkIds can have whitespaces and slashes by design. Tooling should not rely on linkIds being valid XHTML element IDs, and should not directly embed them as such",
        "requirements": "[MeasureReport](https://hl7.org/fhir/m.html#) does not require omitted stratifier components to be included. Element `Measure.group.stratifier.component.linkId` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.linkId` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.linkId` 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:linkId.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:linkId.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:linkId.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": "linkId",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:linkId.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Unique id for stratifier component in measure",
        "definition": "An identifier that is unique within the Measure allowing linkage to the equivalent item in a MeasureReport resource.",
        "comment": "This ''can'' be a meaningful identifier (e.g. a LOINC code) but is not intended to have any meaning.  GUIDs or sequential numbers are appropriate here.\n\nLinkIds can have whitespaces and slashes by design. Tooling should not rely on linkIds being valid XHTML element IDs, and should not directly embed them as such",
        "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:code",
        "path": "Extension.extension",
        "sliceName": "code",
        "short": "R5: Meaning of the stratifier component (new)",
        "definition": "R5: `Measure.group.stratifier.component.code` (new:CodeableConcept)",
        "comment": "Element `Measure.group.stratifier.component.code` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.code` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Measure.group.stratifier.component.code` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.code` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.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": "Meaning of the stratifier component",
        "definition": "Indicates a meaning for the stratifier component. This can be as simple as a unique identifier, or it can establish meaning in a broader context by drawing from a terminology, allowing stratifiers to be correlated across measures.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "example",
          "description": "Meaning of the stratifier.",
          "valueSetUri": "http://hl7.org/fhir/uv/xver/ValueSet/R5-measure-stratifier-example-for-R3|0.1.0"
        },
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:description",
        "path": "Extension.extension",
        "sliceName": "description",
        "short": "R5: The human readable description of this stratifier component (new)",
        "definition": "R5: `Measure.group.stratifier.component.description` (new:markdown)",
        "comment": "Element `Measure.group.stratifier.component.description` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.description` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Measure.group.stratifier.component.description` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.description` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.description` 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:description.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:description.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:description.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": "description",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:description.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "The human readable description of this stratifier component",
        "definition": "The human readable description of this stratifier criteria component.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "markdown"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria",
        "path": "Extension.extension",
        "sliceName": "criteria",
        "short": "R5: Component of how the measure should be stratified (new)",
        "definition": "R5: `Measure.group.stratifier.component.criteria` (new:Expression)",
        "comment": "Element `Measure.group.stratifier.component.criteria` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.criteria` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.criteria` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Measure.group.stratifier.component.criteria` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.criteria` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.criteria` 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:criteria.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:criteria.extension",
        "path": "Extension.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:criteria.extension:_datatype",
        "path": "Extension.extension.extension",
        "sliceName": "_datatype",
        "short": "DataType slice for a FHIR R5 `Expression` value",
        "definition": "Slice to indicate the presence of a R5 `Expression` in FHIR STU3",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:_datatype.id",
        "path": "Extension.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:criteria.extension:_datatype.extension",
        "path": "Extension.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:criteria.extension:_datatype.url",
        "path": "Extension.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": "http://hl7.org/fhir/StructureDefinition/_datatype",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:_datatype.value[x]",
        "path": "Extension.extension.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).",
        "comment": "Must be: Expression",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "fixedString": "Expression",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:description",
        "path": "Extension.extension.extension",
        "sliceName": "description",
        "short": "R5: Natural language description of the condition (new)",
        "definition": "R5: `Expression.description` (new:string)",
        "comment": "Element `Expression.description` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Expression.description` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.description` 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:criteria.extension:description.id",
        "path": "Extension.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:criteria.extension:description.extension",
        "path": "Extension.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:criteria.extension:description.url",
        "path": "Extension.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": "description",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:description.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Natural language description of the condition",
        "definition": "A brief, natural language description of the condition that effectively communicates the intended semantics.",
        "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:criteria.extension:name",
        "path": "Extension.extension.extension",
        "sliceName": "name",
        "short": "R5: Short name assigned to expression for reuse (new)",
        "definition": "R5: `Expression.name` (new:code)",
        "comment": "Element `Expression.name` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.name` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Expression.name` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.name` 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:criteria.extension:name.id",
        "path": "Extension.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:criteria.extension:name.extension",
        "path": "Extension.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:criteria.extension:name.url",
        "path": "Extension.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": "name",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:name.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Short name assigned to expression for reuse",
        "definition": "A short name assigned to the expression to allow for multiple reuse of the expression in the context where it is defined.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:language",
        "path": "Extension.extension.extension",
        "sliceName": "language",
        "short": "R5: text/cql | text/fhirpath | application/x-fhir-query | etc. (new)",
        "definition": "R5: `Expression.language` (new:code)",
        "comment": "Element matches Basic element path `Basic.language` (`Resource.language`), use that element instead.\nElement `Expression.language` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.language` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "The cardinality of this element is optional to allow text only as part of the authoring process.  However, in order to be executable, the expression element must be specified. Element matches Basic element path `Basic.language` (`Resource.language`), use that element instead.\nElement `Expression.language` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.language` 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:criteria.extension:language.id",
        "path": "Extension.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:criteria.extension:language.extension",
        "path": "Extension.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:criteria.extension:language.url",
        "path": "Extension.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": "language",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:language.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "text/cql | text/fhirpath | application/x-fhir-query | etc.",
        "definition": "The media type of the language for the expression.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:expression",
        "path": "Extension.extension.extension",
        "sliceName": "expression",
        "short": "R5: Expression in specified language (new)",
        "definition": "R5: `Expression.expression` (new:string)",
        "comment": "Element `Expression.expression` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.expression` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nIf Expression.expression and Expression.reference are both present, the Expression.expression might just be a name pointing something within the referenced content.",
        "requirements": "Element `Expression.expression` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.expression` 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:criteria.extension:expression.id",
        "path": "Extension.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:criteria.extension:expression.extension",
        "path": "Extension.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:criteria.extension:expression.url",
        "path": "Extension.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": "expression",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:expression.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Expression in specified language",
        "definition": "An expression in the specified language that returns a value.",
        "comment": "If Expression.expression and Expression.reference are both present, the Expression.expression might just be a name pointing something within the referenced content.",
        "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:criteria.extension:reference",
        "path": "Extension.extension.extension",
        "sliceName": "reference",
        "short": "R5: Where the expression is found (new)",
        "definition": "R5: `Expression.reference` (new:uri)",
        "comment": "Element `Expression.reference` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.reference` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nIf both a reference and an expression is found, the reference SHALL point to the same expression.",
        "requirements": "Element `Expression.reference` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.reference` 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:criteria.extension:reference.id",
        "path": "Extension.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:criteria.extension:reference.extension",
        "path": "Extension.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:criteria.extension:reference.url",
        "path": "Extension.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": "reference",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:reference.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Where the expression is found",
        "definition": "A URI that defines where the expression is found.",
        "comment": "If both a reference and an expression is found, the reference SHALL point to the same expression.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.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": "criteria",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.value[x]",
        "path": "Extension.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"
          }
        ]
      },
      {
        "id": "Extension.extension:groupDefinition",
        "path": "Extension.extension",
        "sliceName": "groupDefinition",
        "short": "R5: A group resource that defines this population (new)",
        "definition": "R5: `Measure.group.stratifier.component.groupDefinition` (new:Reference(Group))",
        "comment": "Element `Measure.group.stratifier.component.groupDefinition` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.groupDefinition` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.groupDefinition` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nNote that this approach can only be used for measures where the basis is of the same type as the populations (e.g. a Patient-based measure, rather than an Encounter-based measure). In addition, the referenced Group SHALL be a definitional (as opposed to an actual) group.",
        "requirements": "Element `Measure.group.stratifier.component.groupDefinition` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.groupDefinition` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.groupDefinition` 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:groupDefinition.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:groupDefinition.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:groupDefinition.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": "groupDefinition",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:groupDefinition.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "A group resource that defines this population",
        "definition": "A Group resource that defines this population as a set of characteristics.",
        "comment": "Note that this approach can only be used for measures where the basis is of the same type as the populations (e.g. a Patient-based measure, rather than an Encounter-based measure). In addition, the referenced Group SHALL be a definitional (as opposed to an actual) group.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/5.0/StructureDefinition/profile-Group|0.1.0"
          },
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/StructureDefinition/Group"
          }
        ],
        "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/5.0/StructureDefinition/extension-Measure.group.stratifier.component",
        "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": "R5: Stratifier criteria component for the measure (new)",
        "definition": "R5: `Measure.group.stratifier.component` (new:BackboneElement)",
        "comment": "Element `Measure.group.stratifier.component` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nStratifiers are defined either as a single criteria, or as a set of component criteria.",
        "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:linkId",
        "path": "Extension.extension",
        "sliceName": "linkId",
        "short": "R5: Unique id for stratifier component in measure (new)",
        "definition": "R5: `Measure.group.stratifier.component.linkId` (new:string)",
        "comment": "Element `Measure.group.stratifier.component.linkId` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.linkId` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.linkId` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nThis ''can'' be a meaningful identifier (e.g. a LOINC code) but is not intended to have any meaning.  GUIDs or sequential numbers are appropriate here.\n\nLinkIds can have whitespaces and slashes by design. Tooling should not rely on linkIds being valid XHTML element IDs, and should not directly embed them as such",
        "requirements": "[MeasureReport](https://hl7.org/fhir/m.html#) does not require omitted stratifier components to be included. Element `Measure.group.stratifier.component.linkId` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.linkId` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.linkId` 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:linkId.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "linkId"
      },
      {
        "id": "Extension.extension:linkId.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Unique id for stratifier component in measure",
        "definition": "An identifier that is unique within the Measure allowing linkage to the equivalent item in a MeasureReport resource.",
        "comment": "This ''can'' be a meaningful identifier (e.g. a LOINC code) but is not intended to have any meaning.  GUIDs or sequential numbers are appropriate here.\n\nLinkIds can have whitespaces and slashes by design. Tooling should not rely on linkIds being valid XHTML element IDs, and should not directly embed them as such",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:code",
        "path": "Extension.extension",
        "sliceName": "code",
        "short": "R5: Meaning of the stratifier component (new)",
        "definition": "R5: `Measure.group.stratifier.component.code` (new:CodeableConcept)",
        "comment": "Element `Measure.group.stratifier.component.code` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.code` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.code` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Measure.group.stratifier.component.code` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.code` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.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": "Meaning of the stratifier component",
        "definition": "Indicates a meaning for the stratifier component. This can be as simple as a unique identifier, or it can establish meaning in a broader context by drawing from a terminology, allowing stratifiers to be correlated across measures.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "example",
          "description": "Meaning of the stratifier.",
          "valueSetUri": "http://hl7.org/fhir/uv/xver/ValueSet/R5-measure-stratifier-example-for-R3|0.1.0"
        }
      },
      {
        "id": "Extension.extension:description",
        "path": "Extension.extension",
        "sliceName": "description",
        "short": "R5: The human readable description of this stratifier component (new)",
        "definition": "R5: `Measure.group.stratifier.component.description` (new:markdown)",
        "comment": "Element `Measure.group.stratifier.component.description` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.description` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Measure.group.stratifier.component.description` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.description` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.description` 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:description.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "description"
      },
      {
        "id": "Extension.extension:description.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "The human readable description of this stratifier component",
        "definition": "The human readable description of this stratifier criteria component.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "markdown"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria",
        "path": "Extension.extension",
        "sliceName": "criteria",
        "short": "R5: Component of how the measure should be stratified (new)",
        "definition": "R5: `Measure.group.stratifier.component.criteria` (new:Expression)",
        "comment": "Element `Measure.group.stratifier.component.criteria` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.criteria` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.criteria` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Measure.group.stratifier.component.criteria` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.criteria` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.criteria` 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:criteria.extension",
        "path": "Extension.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:criteria.extension:_datatype",
        "path": "Extension.extension.extension",
        "sliceName": "_datatype",
        "short": "DataType slice for a FHIR R5 `Expression` value",
        "definition": "Slice to indicate the presence of a R5 `Expression` in FHIR STU3",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:criteria.extension:_datatype.url",
        "path": "Extension.extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/_datatype"
      },
      {
        "id": "Extension.extension:criteria.extension:_datatype.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "comment": "Must be: Expression",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "fixedString": "Expression"
      },
      {
        "id": "Extension.extension:criteria.extension:description",
        "path": "Extension.extension.extension",
        "sliceName": "description",
        "short": "R5: Natural language description of the condition (new)",
        "definition": "R5: `Expression.description` (new:string)",
        "comment": "Element `Expression.description` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Expression.description` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.description` 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:criteria.extension:description.url",
        "path": "Extension.extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "description"
      },
      {
        "id": "Extension.extension:criteria.extension:description.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Natural language description of the condition",
        "definition": "A brief, natural language description of the condition that effectively communicates the intended semantics.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:name",
        "path": "Extension.extension.extension",
        "sliceName": "name",
        "short": "R5: Short name assigned to expression for reuse (new)",
        "definition": "R5: `Expression.name` (new:code)",
        "comment": "Element `Expression.name` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.name` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `Expression.name` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.name` 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:criteria.extension:name.url",
        "path": "Extension.extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "name"
      },
      {
        "id": "Extension.extension:criteria.extension:name.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Short name assigned to expression for reuse",
        "definition": "A short name assigned to the expression to allow for multiple reuse of the expression in the context where it is defined.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:language",
        "path": "Extension.extension.extension",
        "sliceName": "language",
        "short": "R5: text/cql | text/fhirpath | application/x-fhir-query | etc. (new)",
        "definition": "R5: `Expression.language` (new:code)",
        "comment": "Element matches Basic element path `Basic.language` (`Resource.language`), use that element instead.\nElement `Expression.language` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.language` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "The cardinality of this element is optional to allow text only as part of the authoring process.  However, in order to be executable, the expression element must be specified. Element matches Basic element path `Basic.language` (`Resource.language`), use that element instead.\nElement `Expression.language` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.language` 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:criteria.extension:language.url",
        "path": "Extension.extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "language"
      },
      {
        "id": "Extension.extension:criteria.extension:language.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "text/cql | text/fhirpath | application/x-fhir-query | etc.",
        "definition": "The media type of the language for the expression.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:expression",
        "path": "Extension.extension.extension",
        "sliceName": "expression",
        "short": "R5: Expression in specified language (new)",
        "definition": "R5: `Expression.expression` (new:string)",
        "comment": "Element `Expression.expression` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.expression` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nIf Expression.expression and Expression.reference are both present, the Expression.expression might just be a name pointing something within the referenced content.",
        "requirements": "Element `Expression.expression` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.expression` 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:criteria.extension:expression.url",
        "path": "Extension.extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "expression"
      },
      {
        "id": "Extension.extension:criteria.extension:expression.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Expression in specified language",
        "definition": "An expression in the specified language that returns a value.",
        "comment": "If Expression.expression and Expression.reference are both present, the Expression.expression might just be a name pointing something within the referenced content.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.extension:reference",
        "path": "Extension.extension.extension",
        "sliceName": "reference",
        "short": "R5: Where the expression is found (new)",
        "definition": "R5: `Expression.reference` (new:uri)",
        "comment": "Element `Expression.reference` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.reference` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nIf both a reference and an expression is found, the reference SHALL point to the same expression.",
        "requirements": "Element `Expression.reference` is not mapped to FHIR STU3, since FHIR R5 `Expression` is not mapped.\nElement `Expression.reference` 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:criteria.extension:reference.url",
        "path": "Extension.extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "reference"
      },
      {
        "id": "Extension.extension:criteria.extension:reference.value[x]",
        "path": "Extension.extension.extension.value[x]",
        "short": "Where the expression is found",
        "definition": "A URI that defines where the expression is found.",
        "comment": "If both a reference and an expression is found, the reference SHALL point to the same expression.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ]
      },
      {
        "id": "Extension.extension:criteria.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "criteria"
      },
      {
        "id": "Extension.extension:criteria.value[x]",
        "path": "Extension.extension.value[x]",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        }
      },
      {
        "id": "Extension.extension:groupDefinition",
        "path": "Extension.extension",
        "sliceName": "groupDefinition",
        "short": "R5: A group resource that defines this population (new)",
        "definition": "R5: `Measure.group.stratifier.component.groupDefinition` (new:Reference(Group))",
        "comment": "Element `Measure.group.stratifier.component.groupDefinition` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.groupDefinition` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.groupDefinition` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nNote that this approach can only be used for measures where the basis is of the same type as the populations (e.g. a Patient-based measure, rather than an Encounter-based measure). In addition, the referenced Group SHALL be a definitional (as opposed to an actual) group.",
        "requirements": "Element `Measure.group.stratifier.component.groupDefinition` is part of an existing definition because parent element `Measure.group.stratifier.component` requires a cross-version extension.\nElement `Measure.group.stratifier.component.groupDefinition` has a context of Measure.group.stratifier based on following the parent source element upwards and mapping to `Measure`.\nElement `Measure.group.stratifier.component.groupDefinition` 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:groupDefinition.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "groupDefinition"
      },
      {
        "id": "Extension.extension:groupDefinition.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "A group resource that defines this population",
        "definition": "A Group resource that defines this population as a set of characteristics.",
        "comment": "Note that this approach can only be used for measures where the basis is of the same type as the populations (e.g. a Patient-based measure, rather than an Encounter-based measure). In addition, the referenced Group SHALL be a definitional (as opposed to an actual) group.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/5.0/StructureDefinition/profile-Group|0.1.0"
          },
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/StructureDefinition/Group"
          }
        ]
      },
      {
        "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-Measure.group.stratifier.component"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        }
      }
    ]
  }
}