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Packagehl7.fhir.uv.xver-r5.r3
Resource TypeStructureDefinition
IdStructureDefinition-ext-R5-SubscriptionStatus.notificationEvent.json
FHIR VersionR3

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Narrative

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

Generated Narrative: StructureDefinition ext-R5-SubscriptionStatus.notificationEvent

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..*ExtensionR5: Detailed information about any events relevant to this notification (new)
... Slices for extension 1..*ExtensionExtension
Slice: Unordered, Open by value:url
.... extension:eventNumber 1..1ExtensionR5: Sequencing index of this event (new)
..... url 1..1uri"eventNumber"
..... value[x] 1..1stringSequencing index of this event
.... extension:timestamp 0..1ExtensionR5: The instant this event occurred (new)
..... url 1..1uri"timestamp"
..... value[x] 0..1instantThe instant this event occurred
.... extension:focus 0..1ExtensionR5: Reference to the primary resource or information of this event (new)
..... url 1..1uri"focus"
..... value[x] 0..1Reference(Cross-version Profile for R5.Resource for use in FHIR STU3(0.1.0) | Resource)Reference to the primary resource or information of this event
.... extension:additionalContext 0..*ExtensionR5: References related to the focus resource and/or context of this event (new)
..... url 1..1uri"additionalContext"
..... value[x] 0..1Reference(Cross-version Profile for R5.Resource for use in FHIR STU3(0.1.0) | Resource)References related to the focus resource and/or context of this event
... url 1..1uri"http://hl7.org/fhir/5.0/StructureDefinition/extension-SubscriptionStatus.notificationEvent"
... value[x] 0..0Value of extension

doco Documentation for this format

Source1

{
  "resourceType": "StructureDefinition",
  "id": "ext-R5-SubscriptionStatus.notificationEvent",
  "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-SubscriptionStatus.notificationEvent",
  "version": "0.1.0",
  "name": "ExtensionSubscriptionStatus_NotificationEvent",
  "title": "R5: Detailed information about any events relevant to this notification (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: `SubscriptionStatus.notificationEvent` (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 `SubscriptionStatus.notificationEvent` as defined in FHIR R5\r\nin FHIR STU3.\r\n\r\nThe source element is defined as:\r\n`SubscriptionStatus.notificationEvent` 0..* `BackboneElement`\r\n\r\nAcross FHIR versions, the element set has been mapped as:\r\n* R5 `SubscriptionStatus.notificationEvent` 0..* `BackboneElement`\r\n\r\nFollowing are the generation technical comments:\r\nElement `SubscriptionStatus.notificationEvent` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent` 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": "R5: Detailed information about any events relevant to this notification (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent` (new:BackboneElement)",
        "comment": "Element `SubscriptionStatus.notificationEvent` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() | (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false
      },
      {
        "id": "Extension.id",
        "path": "Extension.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "xml:id (or equivalent in JSON)",
        "definition": "unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "ordered": false,
          "rules": "open"
        },
        "short": "Extension",
        "definition": "An Extension",
        "min": 1,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:eventNumber",
        "path": "Extension.extension",
        "sliceName": "eventNumber",
        "short": "R5: Sequencing index of this event (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.eventNumber` (new:integer64)",
        "comment": "Element `SubscriptionStatus.notificationEvent.eventNumber` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.eventNumber` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.eventNumber` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nIn subscriptions where delivery of notifications IS NOT guaranteed (e.g., REST-Hook), this number is a unique and monotonically-increasing event number for a subscription. In channels where delivery of notifications IS guaranteed, this number is a relative index for the events present in the notification (e.g., 1, 2, etc.).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.eventNumber` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.eventNumber` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.eventNumber` 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:eventNumber.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:eventNumber.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:eventNumber.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": "eventNumber",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:eventNumber.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Sequencing index of this event",
        "definition": "Either the sequential number of this event in this subscription context or a relative event number for this notification.",
        "comment": "In subscriptions where delivery of notifications IS NOT guaranteed (e.g., REST-Hook), this number is a unique and monotonically-increasing event number for a subscription. In channels where delivery of notifications IS guaranteed, this number is a relative index for the events present in the notification (e.g., 1, 2, etc.).",
        "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:timestamp",
        "path": "Extension.extension",
        "sliceName": "timestamp",
        "short": "R5: The instant this event occurred (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.timestamp` (new:instant)",
        "comment": "Element `SubscriptionStatus.notificationEvent.timestamp` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.timestamp` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.timestamp` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.timestamp` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.timestamp` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.timestamp` 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:timestamp.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:timestamp.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:timestamp.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": "timestamp",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:timestamp.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "The instant this event occurred",
        "definition": "The actual time this event occurred on the server.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "instant"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:focus",
        "path": "Extension.extension",
        "sliceName": "focus",
        "short": "R5: Reference to the primary resource or information of this event (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.focus` (new:Reference(Resource))",
        "comment": "Element `SubscriptionStatus.notificationEvent.focus` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.focus` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.focus` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.focus` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.focus` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.focus` 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:focus.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:focus.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:focus.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": "focus",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:focus.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Reference to the primary resource or information of this event",
        "definition": "The focus of this event. While this will usually be a reference to the focus resource of the event, it MAY contain a reference to a non-FHIR object.",
        "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-Resource|0.1.0"
          },
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/StructureDefinition/Resource"
          }
        ],
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:additionalContext",
        "path": "Extension.extension",
        "sliceName": "additionalContext",
        "short": "R5: References related to the focus resource and/or context of this event (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.additionalContext` (new:Reference(Resource))",
        "comment": "Element `SubscriptionStatus.notificationEvent.additionalContext` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.additionalContext` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.additionalContext` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.additionalContext` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.additionalContext` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.additionalContext` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ]
      },
      {
        "id": "Extension.extension:additionalContext.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:additionalContext.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:additionalContext.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": "additionalContext",
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.extension:additionalContext.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "References related to the focus resource and/or context of this event",
        "definition": "Additional context information for this event. Generally, this will contain references to additional resources included with the event (e.g., the Patient relevant to an Encounter), however it MAY refer to non-FHIR objects.",
        "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-Resource|0.1.0"
          },
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/StructureDefinition/Resource"
          }
        ],
        "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-SubscriptionStatus.notificationEvent",
        "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: Detailed information about any events relevant to this notification (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent` (new:BackboneElement)",
        "comment": "Element `SubscriptionStatus.notificationEvent` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "isModifier": false
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "min": 1,
        "max": "*",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:eventNumber",
        "path": "Extension.extension",
        "sliceName": "eventNumber",
        "short": "R5: Sequencing index of this event (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.eventNumber` (new:integer64)",
        "comment": "Element `SubscriptionStatus.notificationEvent.eventNumber` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.eventNumber` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.eventNumber` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).\nIn subscriptions where delivery of notifications IS NOT guaranteed (e.g., REST-Hook), this number is a unique and monotonically-increasing event number for a subscription. In channels where delivery of notifications IS guaranteed, this number is a relative index for the events present in the notification (e.g., 1, 2, etc.).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.eventNumber` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.eventNumber` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.eventNumber` 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:eventNumber.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "eventNumber"
      },
      {
        "id": "Extension.extension:eventNumber.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Sequencing index of this event",
        "definition": "Either the sequential number of this event in this subscription context or a relative event number for this notification.",
        "comment": "In subscriptions where delivery of notifications IS NOT guaranteed (e.g., REST-Hook), this number is a unique and monotonically-increasing event number for a subscription. In channels where delivery of notifications IS guaranteed, this number is a relative index for the events present in the notification (e.g., 1, 2, etc.).",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "Extension.extension:timestamp",
        "path": "Extension.extension",
        "sliceName": "timestamp",
        "short": "R5: The instant this event occurred (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.timestamp` (new:instant)",
        "comment": "Element `SubscriptionStatus.notificationEvent.timestamp` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.timestamp` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.timestamp` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.timestamp` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.timestamp` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.timestamp` 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:timestamp.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "timestamp"
      },
      {
        "id": "Extension.extension:timestamp.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "The instant this event occurred",
        "definition": "The actual time this event occurred on the server.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "instant"
          }
        ]
      },
      {
        "id": "Extension.extension:focus",
        "path": "Extension.extension",
        "sliceName": "focus",
        "short": "R5: Reference to the primary resource or information of this event (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.focus` (new:Reference(Resource))",
        "comment": "Element `SubscriptionStatus.notificationEvent.focus` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.focus` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.focus` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.focus` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.focus` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.focus` 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:focus.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "focus"
      },
      {
        "id": "Extension.extension:focus.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "Reference to the primary resource or information of this event",
        "definition": "The focus of this event. While this will usually be a reference to the focus resource of the event, it MAY contain a reference to a non-FHIR object.",
        "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-Resource|0.1.0"
          },
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/StructureDefinition/Resource"
          }
        ]
      },
      {
        "id": "Extension.extension:additionalContext",
        "path": "Extension.extension",
        "sliceName": "additionalContext",
        "short": "R5: References related to the focus resource and/or context of this event (new)",
        "definition": "R5: `SubscriptionStatus.notificationEvent.additionalContext` (new:Reference(Resource))",
        "comment": "Element `SubscriptionStatus.notificationEvent.additionalContext` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.additionalContext` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.additionalContext` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "requirements": "Element `SubscriptionStatus.notificationEvent.additionalContext` is part of an existing definition because parent element `SubscriptionStatus.notificationEvent` requires a cross-version extension.\nElement `SubscriptionStatus.notificationEvent.additionalContext` is not mapped to FHIR STU3, since FHIR R5 `SubscriptionStatus` is not mapped.\nElement `SubscriptionStatus.notificationEvent.additionalContext` has no mapping targets in FHIR STU3. Typically, this is because the element has been added (is a new element).",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Extension.extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.extension:additionalContext.url",
        "path": "Extension.extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "additionalContext"
      },
      {
        "id": "Extension.extension:additionalContext.value[x]",
        "path": "Extension.extension.value[x]",
        "short": "References related to the focus resource and/or context of this event",
        "definition": "Additional context information for this event. Generally, this will contain references to additional resources included with the event (e.g., the Patient relevant to an Encounter), however it MAY refer to non-FHIR objects.",
        "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-Resource|0.1.0"
          },
          {
            "code": "Reference",
            "targetProfile": "http://hl7.org/fhir/StructureDefinition/Resource"
          }
        ]
      },
      {
        "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-SubscriptionStatus.notificationEvent"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 0,
        "max": "0",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        }
      }
    ]
  }
}