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Packagehl7.fhir.uv.xver-r4b.r3
Resource TypeStructureDefinition
IdStructureDefinition-ext-R4B-TerminologyCapabilities.implementation.json
FHIR VersionR3
Sourcehttp://hl7.org/fhir/uv/xver-r4b.r3/0.1.0/StructureDefinition-ext-R4B-TerminologyCapabilities.implementation.html
URLhttp://hl7.org/fhir/4.3/StructureDefinition/extension-TerminologyCapabilities.implementation
Version0.1.0
Statusactive
Date2026-03-17T21:02:03.8104715+00:00
NameExtensionTerminologyCapabilities_Implementation
TitleR4B: If this describes a specific instance (new)
Realmuv
Authorityhl7
DescriptionR4B: `TerminologyCapabilities.implementation` (new:BackboneElement)
PurposeThis extension is part of the cross-version definitions generated to enable use of the element `TerminologyCapabilities.implementation` as defined in FHIR R4B in FHIR STU3. The source element is defined as: `TerminologyCapabilities.implementation` 0..1 `BackboneElement` Across FHIR versions, the element set has been mapped as: * R4B: `TerminologyCapabilities.implementation` 0..1 `BackboneElement` Following are the generation technical comments: Element `TerminologyCapabilities.implementation` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped. Element `TerminologyCapabilities.implementation` 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-r4b.r3#0.1.0R4B-TerminologyCapabilities-element-map-to-R3Cross-version mapping for FHIR R4B TerminologyCapabilities to FHIR STU3 Basic

Resources that this resource uses

No resources found


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-R4B-TerminologyCapabilities.implementation

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1ExtensionR4B: If this describes a specific instance (new)
... Slices for extension 1..*ExtensionExtension
Slice: Unordered, Open by value:url
.... extension:description 1..1ExtensionR4B: Describes this specific instance (new)
..... url 1..1uri"description"
..... value[x] 1..1stringDescribes this specific instance
.... extension:url 0..1ExtensionR4B: Base URL for the implementation (new)
..... url 1..1uri"url"
..... value[x] 0..1uriBase URL for the implementation
... url 1..1uri"http://hl7.org/fhir/4.3/StructureDefinition/extension-TerminologyCapabilities.implementation"
... value[x] 0..0Value of extension

doco Documentation for this format

Source1

{
  "resourceType": "StructureDefinition",
  "id": "ext-R4B-TerminologyCapabilities.implementation",
  "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-r4b.r3"
        },
        {
          "url": "version",
          "valueString": "0.1.0"
        },
        {
          "url": "uri",
          "valueUri": "http://hl7.org/fhir/uv/xver/ImplementationGuide/hl7.fhir.uv.xver-r4b.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-r4b.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-r4b.r3"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/4.3/StructureDefinition/extension-TerminologyCapabilities.implementation",
  "version": "0.1.0",
  "name": "ExtensionTerminologyCapabilities_Implementation",
  "title": "R4B: If this describes a specific instance (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": "R4B: `TerminologyCapabilities.implementation` (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 `TerminologyCapabilities.implementation` as defined in FHIR R4B\r\nin FHIR STU3.\r\n\r\nThe source element is defined as:\r\n`TerminologyCapabilities.implementation` 0..1 `BackboneElement`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n*  R4B: `TerminologyCapabilities.implementation` 0..1 `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `TerminologyCapabilities.implementation` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
  "fhirVersion": "3.0.2",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "contextType": "resource",
  "context": [
    "Basic"
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "snapshot": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "R4B: If this describes a specific instance (new)",
        "definition": "R4B: `TerminologyCapabilities.implementation` (new:BackboneElement)",
        "comment": "Element `TerminologyCapabilities.implementation` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation` 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",
          "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": 1,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:description",
        "path": "Extension.extension",
        "sliceName": "description",
        "short": "R4B: Describes this specific instance (new)",
        "definition": "R4B: `TerminologyCapabilities.implementation.description` (new:string)",
        "comment": "Element `TerminologyCapabilities.implementation.description` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.description` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `TerminologyCapabilities.implementation.description` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.description` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 1,
        "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": "Describes this specific instance",
        "definition": "Information about the specific installation that this terminology capability statement relates to.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:url",
        "path": "Extension.extension",
        "sliceName": "url",
        "short": "R4B: Base URL for the implementation (new)",
        "definition": "R4B: `TerminologyCapabilities.implementation.url` (new:url)",
        "comment": "Element `TerminologyCapabilities.implementation.url` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.url` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.url` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `TerminologyCapabilities.implementation.url` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.url` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.url` 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:url.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:url.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:url.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": "url",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:url.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Base URL for the implementation",
        "definition": "An absolute base URL for the implementation.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a URL.",
        "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/4.3/StructureDefinition/extension-TerminologyCapabilities.implementation",
        "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": "R4B: If this describes a specific instance (new)",
        "definition": "R4B: `TerminologyCapabilities.implementation` (new:BackboneElement)",
        "comment": "Element `TerminologyCapabilities.implementation` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation` 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",
          "min": 0,
          "max": "*"
        },
        "isModifier": false
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "min": 1,
        "max": "*",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:description",
        "path": "Extension.extension",
        "sliceName": "description",
        "short": "R4B: Describes this specific instance (new)",
        "definition": "R4B: `TerminologyCapabilities.implementation.description` (new:string)",
        "comment": "Element `TerminologyCapabilities.implementation.description` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.description` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `TerminologyCapabilities.implementation.description` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.description` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.description` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 1,
        "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": "Describes this specific instance",
        "definition": "Information about the specific installation that this terminology capability statement relates to.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:url",
        "path": "Extension.extension",
        "sliceName": "url",
        "short": "R4B: Base URL for the implementation (new)",
        "definition": "R4B: `TerminologyCapabilities.implementation.url` (new:url)",
        "comment": "Element `TerminologyCapabilities.implementation.url` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.url` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.url` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `TerminologyCapabilities.implementation.url` is part of an existing definition because parent element `TerminologyCapabilities.implementation` requires a cross-version extension.\nElement `TerminologyCapabilities.implementation.url` is not mapped to FHIR STU3, since FHIR R4B `TerminologyCapabilities` is not mapped.\nElement `TerminologyCapabilities.implementation.url` 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:url.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "url"
      },
      {
        "id": "Extension.extension:url.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Base URL for the implementation",
        "definition": "An absolute base URL for the implementation.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "uri"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "http://hl7.org/fhir/4.3/StructureDefinition/extension-TerminologyCapabilities.implementation"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        }
      }
    ]
  }
}