UMC IDMP Request and Publish API
0.1.0 - CI Build

UMC IDMP Request and Publish API, published by Uppsala Monitoring Centre. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/Uppsala-Monitoring-Centre/WHO-UMC-IDMP-Service/ and changes regularly. See the Directory of published versions

## Resource Profile: SubscriptionIdmpEvent - JSON Profile

Active as of 2025-11-19

JSON representation of the Subscription-IdmpEvent resource profile.

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    {
      "resourceType" : "StructureDefinition",
      "id" : "Subscription-IdmpEvent",
      "text" : {
        "status" : "extensions",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition Subscription-IdmpEvent</b></p><a name=\"Subscription-IdmpEvent\"> </a><a name=\"hcSubscription-IdmpEvent\"> </a><table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" style=\"border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;\"><tr style=\"border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top\"><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"The logical name of the element\">Name</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Information about the use of the element\">Flags</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Minimum and Maximum # of times the element can appear in the instance\">Card.</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Reference to the type of the element\">Type</a></th><th style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px\" class=\"hierarchy\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Additional information about the element\">Description &amp; Constraints</a><span style=\"float: right\"><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/></a></span></th></tr><tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_resource.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Resource\" class=\"hierarchy\"/> <a href=\"StructureDefinition-Subscription-IdmpEvent-definitions.html#Subscription\">Subscription</a><a name=\"Subscription\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">*</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/subscription.html\">Subscription</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">Notification about a SubscriptionTopic</span></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-Subscription-IdmpEvent-definitions.html#Subscription.topic\">topic</a><a name=\"Subscription.topic\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">1</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/fhir/R5/references.html\">canonical</a>(<a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R5/subscriptiontopic.html\">SubscriptionTopic</a>)</td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">Available topics are found at https://idmp.who-umc.org/fhir/SubscriptionTopic</td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-Subscription-IdmpEvent-definitions.html#Subscription.channelType\">channelType</a><a name=\"Subscription.channelType\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-Subscription-IdmpEvent-definitions.html#Subscription.channelType.system\">system</a><a name=\"Subscription.channelType.system\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R5/datatypes.html#uri\">uri</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">Identity of the terminology system</span><br/><span style=\"font-weight:bold\">Required Pattern: </span><span style=\"color: darkgreen\">http://terminology.hl7.org/CodeSystem/subscription-channel-type</span></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck100.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vline.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-Subscription-IdmpEvent-definitions.html#Subscription.channelType.code\">code</a><a name=\"Subscription.channelType.code\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">0</span><span style=\"opacity: 0.5\">..</span><span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R5/datatypes.html#code\">code</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">Symbol in syntax defined by the system</span><br class=\"binding\"/><span style=\"font-weight:bold\" title=\"null\" class=\"binding\">Binding: </span><a href=\"ValueSet-channelType.html\" title=\"http://who-umc.org/idmp/ValueSet/channelType\" class=\"binding\">Channel Type Value Set</a><span title=\"null\" class=\"binding\"> (</span><a href=\"http://hl7.org/fhir/R5/terminologies.html#required\" title=\"To be conformant, the concept in this element SHALL be from the specified value set.\" class=\"binding\">required</a><span title=\"null\" class=\"binding\">)</span></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-Subscription-IdmpEvent-definitions.html#Subscription.endpoint\">endpoint</a><a name=\"Subscription.endpoint\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..<span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R5/datatypes.html#url\">url</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><span style=\"opacity: 0.5\">Where the channel points to</span></td></tr>\r\n<tr style=\"border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white\"><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-Subscription-IdmpEvent-definitions.html#Subscription.content\">content</a><a name=\"Subscription.content\"> </a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"/><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">1..<span style=\"opacity: 0.5\">1</span></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R5/datatypes.html#code\">code</a></td><td style=\"vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\">id-only</td></tr>\r\n<tr><td colspan=\"5\" class=\"hierarchy\"><br/><a href=\"https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views\" title=\"Legend for this format\"><img src=\"data:image/png;base64, \" alt=\"doco\" style=\"background-color: inherit\"/> Documentation for this format</a></td></tr></table></div>"
      },
      "url" : "http://who-umc.org/idmp/StructureDefinition/Subscription-IdmpEvent",
      "version" : "0.1.0",
      "name" : "SubscriptionIdmpEvent",
      "title" : "Subscription for event notifications",
      "status" : "active",
      "date" : "2025-11-19T07:03:36+00:00",
      "publisher" : "Uppsala Monitoring Centre",
      "contact" : [
        {
          "name" : "Uppsala Monitoring Centre",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://www.who-umc.org"
            }
          ]
        },
        {
          "name" : "Uppsala Monitoring Centre",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://www.who-umc.org"
            }
          ]
        }
      ],
      "description" : "Subscription for event notifications",
      "jurisdiction" : [
        {
          "coding" : [
            {
              "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
              "code" : "001",
              "display" : "World"
            }
          ]
        }
      ],
      "fhirVersion" : "5.0.0",
      "mapping" : [
        {
          "identity" : "w5",
          "uri" : "http://hl7.org/fhir/fivews",
          "name" : "FiveWs Pattern Mapping"
        },
        {
          "identity" : "rim",
          "uri" : "http://hl7.org/v3",
          "name" : "RIM Mapping"
        }
      ],
      "kind" : "resource",
      "abstract" : false,
      "type" : "Subscription",
      "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Subscription",
      "derivation" : "constraint",
      "snapshot" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
            "valueString" : "5.0.0"
          }
        ],
        "element" : [
          {
            "id" : "Subscription",
            "path" : "Subscription",
            "short" : "Notification about a SubscriptionTopic",
            "definition" : "The subscription resource describes a particular client's request to be notified about a SubscriptionTopic.",
            "alias" : [
              "WebHook",
              "Hook",
              "Routing Rule"
            ],
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Subscription",
              "min" : 0,
              "max" : "*"
            },
            "constraint" : [
              {
                "key" : "dom-2",
                "severity" : "error",
                "human" : "If the resource is contained in another resource, it SHALL NOT contain nested Resources",
                "expression" : "contained.contained.empty()",
                "source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
              },
              {
                "key" : "dom-3",
                "severity" : "error",
                "human" : "If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource",
                "expression" : "contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().ofType(canonical) | %resource.descendants().ofType(uri) | %resource.descendants().ofType(url))) or descendants().where(reference = '#').exists() or descendants().where(ofType(canonical) = '#').exists() or descendants().where(ofType(canonical) = '#').exists()).not()).trace('unmatched', id).empty()",
                "source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
              },
              {
                "key" : "dom-4",
                "severity" : "error",
                "human" : "If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated",
                "expression" : "contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()",
                "source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
              },
              {
                "key" : "dom-5",
                "severity" : "error",
                "human" : "If a resource is contained in another resource, it SHALL NOT have a security label",
                "expression" : "contained.meta.security.empty()",
                "source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
              },
              {
                "extension" : [
                  {
                    "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice",
                    "valueBoolean" : true
                  },
                  {
                    "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation",
                    "valueMarkdown" : "When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."
                  }
                ],
                "key" : "dom-6",
                "severity" : "warning",
                "human" : "A resource should have narrative for robust management",
                "expression" : "text.`div`.exists()",
                "source" : "http://hl7.org/fhir/StructureDefinition/DomainResource"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "Entity, Role, or Act,N/A"
              },
              {
                "identity" : "w5",
                "map" : "infrastructure.exchange"
              }
            ]
          },
          {
            "id" : "Subscription.id",
            "path" : "Subscription.id",
            "short" : "Logical id of this artifact",
            "definition" : "The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.",
            "comment" : "Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Resource.id",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "extension" : [
                  {
                    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                    "valueUrl" : "id"
                  }
                ],
                "code" : "http://hl7.org/fhirpath/System.String"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.meta",
            "path" : "Subscription.meta",
            "short" : "Metadata about the resource",
            "definition" : "The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Resource.meta",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Meta"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.implicitRules",
            "path" : "Subscription.implicitRules",
            "short" : "A set of rules under which this content was created",
            "definition" : "A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.",
            "comment" : "Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of its narrative along with other profiles, value sets, etc.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Resource.implicitRules",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "uri"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : true,
            "isModifierReason" : "This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies its meaning or interpretation",
            "isSummary" : true
          },
          {
            "id" : "Subscription.language",
            "path" : "Subscription.language",
            "short" : "Language of the resource content",
            "definition" : "The base language in which the resource is written.",
            "comment" : "Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Resource.language",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "Language"
                }
              ],
              "strength" : "required",
              "description" : "IETF language tag for a human language",
              "valueSet" : "http://hl7.org/fhir/ValueSet/all-languages|5.0.0",
              "additional" : [
                {
                  "purpose" : "starter",
                  "valueSet" : "http://hl7.org/fhir/ValueSet/languages|5.0.0"
                }
              ]
            }
          },
          {
            "id" : "Subscription.text",
            "path" : "Subscription.text",
            "short" : "Text summary of the resource, for human interpretation",
            "definition" : "A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it \"clinically safe\" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.",
            "comment" : "Contained resources do not have a narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary for data from legacy systems where information is captured as a \"text blob\" or where text is additionally entered raw or narrated and encoded information is added later.",
            "alias" : [
              "narrative",
              "html",
              "xhtml",
              "display"
            ],
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "DomainResource.text",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Narrative"
              }
            ],
            "condition" : [
              "dom-6"
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "Act.text?"
              }
            ]
          },
          {
            "id" : "Subscription.contained",
            "path" : "Subscription.contained",
            "short" : "Contained, inline Resources",
            "definition" : "These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.",
            "comment" : "This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags in their meta elements, but SHALL NOT have security labels.",
            "alias" : [
              "inline resources",
              "anonymous resources",
              "contained resources"
            ],
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "DomainResource.contained",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "Resource"
              }
            ],
            "condition" : [
              "dom-2",
              "dom-4",
              "dom-3",
              "dom-5"
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "N/A"
              }
            ]
          },
          {
            "id" : "Subscription.extension",
            "path" : "Subscription.extension",
            "short" : "Additional content defined by implementations",
            "definition" : "May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can 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" : "DomainResource.extension",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "Extension"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "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()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "N/A"
              }
            ]
          },
          {
            "id" : "Subscription.modifierExtension",
            "path" : "Subscription.modifierExtension",
            "short" : "Extensions that cannot be ignored",
            "definition" : "May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, 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. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
            "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.",
            "requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
            "alias" : [
              "extensions",
              "user content"
            ],
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "DomainResource.modifierExtension",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "Extension"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "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()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
              }
            ],
            "mustSupport" : false,
            "isModifier" : true,
            "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them",
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "N/A"
              }
            ]
          },
          {
            "id" : "Subscription.identifier",
            "path" : "Subscription.identifier",
            "short" : "Additional identifiers (business identifier)",
            "definition" : "A formal identifier that is used to identify this code system when it is represented in other formats, or referenced in a specification, model, design or an instance.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Subscription.identifier",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "Identifier"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "w5",
                "map" : "FiveWs.identifier"
              }
            ]
          },
          {
            "id" : "Subscription.name",
            "path" : "Subscription.name",
            "short" : "Human readable name for this subscription",
            "definition" : "A natural language name identifying the subscription.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.name",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.status",
            "path" : "Subscription.status",
            "short" : "requested | active | error | off | entered-in-error",
            "definition" : "The status of the subscription, which marks the server state for managing the subscription.",
            "comment" : "A client can only submit subscription resources in the requested or off state. Only the server can  move a subscription from requested to active, and then to error. Either the server or the client can turn a subscription off.\n\nThis element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.status",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : true,
            "isModifierReason" : "This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid",
            "isSummary" : true,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "SubscriptionStatusCodes"
                }
              ],
              "strength" : "required",
              "description" : "The status of a subscription.",
              "valueSet" : "http://hl7.org/fhir/ValueSet/subscription-status|5.0.0"
            },
            "mapping" : [
              {
                "identity" : "w5",
                "map" : "FiveWs.status"
              }
            ]
          },
          {
            "id" : "Subscription.topic",
            "path" : "Subscription.topic",
            "short" : "Available topics are found at https://idmp.who-umc.org/fhir/SubscriptionTopic",
            "definition" : "The reference to the subscription topic to be notified about.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.topic",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "canonical",
                "targetProfile" : [
                  🔗 "http://hl7.org/fhir/StructureDefinition/SubscriptionTopic|5.0.0"
                ]
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "w5",
                "map" : "FiveWs.what[x]"
              }
            ]
          },
          {
            "id" : "Subscription.contact",
            "path" : "Subscription.contact",
            "short" : "Contact details for source (e.g. troubleshooting)",
            "definition" : "Contact details for a human to contact about the subscription. The primary use of this for system administrator troubleshooting.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Subscription.contact",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "ContactPoint"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "w5",
                "map" : "FiveWs.subject[x]"
              }
            ]
          },
          {
            "id" : "Subscription.end",
            "path" : "Subscription.end",
            "short" : "When to automatically delete the subscription",
            "definition" : "The time for the server to turn the subscription off.",
            "comment" : "The server is permitted to deviate from this time but should observe it.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.end",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "instant"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "w5",
                "map" : "FiveWs.done[x]"
              }
            ]
          },
          {
            "id" : "Subscription.managingEntity",
            "path" : "Subscription.managingEntity",
            "short" : "Entity responsible for Subscription changes",
            "definition" : "Entity with authorization to make subsequent revisions to the Subscription and also determines what data the subscription is authorized to disclose.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.managingEntity",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Reference",
                "targetProfile" : [
                  🔗 "http://hl7.org/fhir/StructureDefinition/CareTeam|5.0.0"🔗 ,
                  "http://hl7.org/fhir/StructureDefinition/HealthcareService|5.0.0"🔗 ,
                  "http://hl7.org/fhir/StructureDefinition/Organization|5.0.0"🔗 ,
                  "http://hl7.org/fhir/StructureDefinition/RelatedPerson|5.0.0"🔗 ,
                  "http://hl7.org/fhir/StructureDefinition/Patient|5.0.0"🔗 ,
                  "http://hl7.org/fhir/StructureDefinition/Practitioner|5.0.0"🔗 ,
                  "http://hl7.org/fhir/StructureDefinition/PractitionerRole|5.0.0"
                ]
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "w5",
                "map" : "FiveWs.author"
              }
            ]
          },
          {
            "id" : "Subscription.reason",
            "path" : "Subscription.reason",
            "short" : "Description of why this subscription was created",
            "definition" : "A description of why this subscription is defined.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.reason",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "w5",
                "map" : "FiveWs.why[x]"
              }
            ]
          },
          {
            "id" : "Subscription.filterBy",
            "path" : "Subscription.filterBy",
            "short" : "Criteria for narrowing the subscription topic stream",
            "definition" : "The filter properties to be applied to narrow the subscription topic stream.  When multiple filters are applied, evaluates to true if all the conditions applicable to that resource are met; otherwise it returns false (i.e., logical AND).",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Subscription.filterBy",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "BackboneElement"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              },
              {
                "key" : "scr-1",
                "severity" : "error",
                "human" : "Subscription filters may only contain a modifier or a comparator",
                "expression" : "(comparator.exists() and modifier.exists()).not()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Subscription"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.filterBy.id",
            "path" : "Subscription.filterBy.id",
            "representation" : [
              "xmlAttr"
            ],
            "short" : "Unique id for inter-element referencing",
            "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" : [
              {
                "extension" : [
                  {
                    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                    "valueUrl" : "string"
                  }
                ],
                "code" : "http://hl7.org/fhirpath/System.String"
              }
            ],
            "condition" : [
              "ele-1"
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Subscription.filterBy.extension",
            "path" : "Subscription.filterBy.extension",
            "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. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can 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"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "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()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
              }
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Subscription.filterBy.modifierExtension",
            "path" : "Subscription.filterBy.modifierExtension",
            "short" : "Extensions that cannot be ignored even if unrecognized",
            "definition" : "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
            "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.",
            "requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
            "alias" : [
              "extensions",
              "user content",
              "modifiers"
            ],
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "BackboneElement.modifierExtension",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "Extension"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "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()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
              }
            ],
            "isModifier" : true,
            "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "N/A"
              }
            ]
          },
          {
            "id" : "Subscription.filterBy.resourceType",
            "path" : "Subscription.filterBy.resourceType",
            "short" : "Allowed Resource (reference to definition) for this Subscription filter",
            "definition" : "A resource listed in the `SubscriptionTopic` this `Subscription` references (`SubscriptionTopic.canFilterBy.resource`). This element can be used to differentiate filters for topics that include more than one resource type.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.filterBy.resourceType",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "uri"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "FHIRTypes"
                }
              ],
              "strength" : "extensible",
              "description" : "A type of resource, or a Reference (from all versions)",
              "valueSet" : "http://hl7.org/fhir/ValueSet/subscription-types|5.0.0",
              "additional" : [
                {
                  "purpose" : "ui",
                  "valueSet" : "http://hl7.org/fhir/ValueSet/all-resource-types|5.0.0"
                }
              ]
            }
          },
          {
            "id" : "Subscription.filterBy.filterParameter",
            "path" : "Subscription.filterBy.filterParameter",
            "short" : "Filter label defined in SubscriptionTopic",
            "definition" : "The filter as defined in the `SubscriptionTopic.canFilterBy.filterParameter` element.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.filterBy.filterParameter",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.filterBy.comparator",
            "path" : "Subscription.filterBy.comparator",
            "short" : "eq | ne | gt | lt | ge | le | sa | eb | ap",
            "definition" : "Comparator applied to this filter parameter.",
            "comment" : "Must be a comparator allowed by the SubscriptionTopic relevant to this Subscription filter.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.filterBy.comparator",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code"
              }
            ],
            "condition" : [
              "scr-1"
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "SearchComparator"
                }
              ],
              "strength" : "required",
              "description" : "Search Comparator Codes applied to this filter.",
              "valueSet" : "http://hl7.org/fhir/ValueSet/search-comparator|5.0.0"
            }
          },
          {
            "id" : "Subscription.filterBy.modifier",
            "path" : "Subscription.filterBy.modifier",
            "short" : "missing | exact | contains | not | text | in | not-in | below | above | type | identifier | of-type | code-text | text-advanced | iterate",
            "definition" : "Modifier applied to this filter parameter.",
            "comment" : "Must be a modifier allowed by the SubscriptionTopic relevant to this Subscription filter.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.filterBy.modifier",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code"
              }
            ],
            "condition" : [
              "scr-1"
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "SearchModifierCode"
                }
              ],
              "strength" : "required",
              "description" : "Search Modifier Code applied to this filter.",
              "valueSet" : "http://hl7.org/fhir/ValueSet/search-modifier-code|5.0.0"
            }
          },
          {
            "id" : "Subscription.filterBy.value",
            "path" : "Subscription.filterBy.value",
            "short" : "Literal value or resource path",
            "definition" : "The literal value or resource path as is legal in search - for example, `Patient/123` or `le1950`.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.filterBy.value",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.channelType",
            "path" : "Subscription.channelType",
            "short" : "Channel type for notifications",
            "definition" : "The type of channel to send notifications on.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.channelType",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Coding"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "SubscriptionChannelType"
                }
              ],
              "strength" : "extensible",
              "description" : "The type of method used to execute a subscription.",
              "valueSet" : "http://hl7.org/fhir/ValueSet/subscription-channel-type|5.0.0"
            }
          },
          {
            "id" : "Subscription.channelType.id",
            "path" : "Subscription.channelType.id",
            "representation" : [
              "xmlAttr"
            ],
            "short" : "Unique id for inter-element referencing",
            "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" : [
              {
                "extension" : [
                  {
                    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                    "valueUrl" : "id"
                  }
                ],
                "code" : "http://hl7.org/fhirpath/System.String"
              }
            ],
            "condition" : [
              "ele-1"
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Subscription.channelType.extension",
            "path" : "Subscription.channelType.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. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can 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"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "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()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
              }
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Subscription.channelType.system",
            "path" : "Subscription.channelType.system",
            "short" : "Identity of the terminology system",
            "definition" : "The identification of the code system that defines the meaning of the symbol in the code.",
            "comment" : "The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should be an absolute reference to some definition that establishes the system clearly and unambiguously.",
            "requirements" : "Need to be unambiguous about the source of the definition of the symbol.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Coding.system",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "uri"
              }
            ],
            "patternUri" : "http://terminology.hl7.org/CodeSystem/subscription-channel-type",
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "C*E.3"
              },
              {
                "identity" : "rim",
                "map" : "./codeSystem"
              },
              {
                "identity" : "orim",
                "map" : "fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem"
              }
            ]
          },
          {
            "id" : "Subscription.channelType.version",
            "path" : "Subscription.channelType.version",
            "short" : "Version of the system - if relevant",
            "definition" : "The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.",
            "comment" : "Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Coding.version",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "C*E.7"
              },
              {
                "identity" : "rim",
                "map" : "./codeSystemVersion"
              },
              {
                "identity" : "orim",
                "map" : "fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion"
              }
            ]
          },
          {
            "id" : "Subscription.channelType.code",
            "path" : "Subscription.channelType.code",
            "short" : "Symbol in syntax defined by the system",
            "definition" : "A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).",
            "requirements" : "Need to refer to a particular code in the system.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Coding.code",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code"
              }
            ],
            "condition" : [
              "cod-1"
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://who-umc.org/idmp/ValueSet/channelType"
            },
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "C*E.1"
              },
              {
                "identity" : "rim",
                "map" : "./code"
              },
              {
                "identity" : "orim",
                "map" : "fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code"
              }
            ]
          },
          {
            "id" : "Subscription.channelType.display",
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
                "valueBoolean" : true
              },
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
                "valueBoolean" : true
              }
            ],
            "path" : "Subscription.channelType.display",
            "short" : "Representation defined by the system",
            "definition" : "A representation of the meaning of the code in the system, following the rules of the system.",
            "requirements" : "Need to be able to carry a human-readable meaning of the code for readers that do not know  the system.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Coding.display",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "condition" : [
              "cod-1"
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "C*E.2 - but note this is not well followed"
              },
              {
                "identity" : "rim",
                "map" : "CV.displayName"
              },
              {
                "identity" : "orim",
                "map" : "fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName"
              }
            ]
          },
          {
            "id" : "Subscription.channelType.userSelected",
            "path" : "Subscription.channelType.userSelected",
            "short" : "If this coding was chosen directly by the user",
            "definition" : "Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).",
            "comment" : "Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.",
            "requirements" : "This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Coding.userSelected",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "boolean"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "Sometimes implied by being first"
              },
              {
                "identity" : "rim",
                "map" : "CD.codingRationale"
              },
              {
                "identity" : "orim",
                "map" : "fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map;   fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\\#true a [     fhir:source \"true\";     fhir:target dt:CDCoding.codingRationale\\#O   ]"
              }
            ]
          },
          {
            "id" : "Subscription.endpoint",
            "path" : "Subscription.endpoint",
            "short" : "Where the channel points to",
            "definition" : "The url that describes the actual end-point to send notifications to.",
            "comment" : "For rest-hook the end-point must be an `http:` or `https:` URL; for websockets, `ws:` or `wss:`; for email, a `mailto:` url; and for message the endpoint can be in any form of url the server understands (usually, `http/s`: or `mllp:`). The URI is allowed to be relative; in which case, it is relative to the server end-point (since there may be more than one, clients should avoid using relative URIs).",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.endpoint",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "url"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.parameter",
            "path" : "Subscription.parameter",
            "short" : "Channel type",
            "definition" : "Channel-dependent information to send as part of the notification (e.g., HTTP Headers).",
            "comment" : "Exactly what these mean depend on the channel type. They can convey additional information to the server or recipient and/or meet security requirements; for example, support of multiple headers in the outgoing notifications for rest-hook type subscriptions. Note that names are not required to be unique, but channel definitions can impose restrictions.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Subscription.parameter",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "BackboneElement"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false
          },
          {
            "id" : "Subscription.parameter.id",
            "path" : "Subscription.parameter.id",
            "representation" : [
              "xmlAttr"
            ],
            "short" : "Unique id for inter-element referencing",
            "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" : [
              {
                "extension" : [
                  {
                    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                    "valueUrl" : "string"
                  }
                ],
                "code" : "http://hl7.org/fhirpath/System.String"
              }
            ],
            "condition" : [
              "ele-1"
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Subscription.parameter.extension",
            "path" : "Subscription.parameter.extension",
            "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. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can 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"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "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()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
              }
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Subscription.parameter.modifierExtension",
            "path" : "Subscription.parameter.modifierExtension",
            "short" : "Extensions that cannot be ignored even if unrecognized",
            "definition" : "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
            "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.",
            "requirements" : "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
            "alias" : [
              "extensions",
              "user content",
              "modifiers"
            ],
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "BackboneElement.modifierExtension",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "Extension"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "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()",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension"
              }
            ],
            "isModifier" : true,
            "isModifierReason" : "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "N/A"
              }
            ]
          },
          {
            "id" : "Subscription.parameter.name",
            "path" : "Subscription.parameter.name",
            "short" : "Name (key) of the parameter",
            "definition" : "Parameter name for information passed to the channel for notifications, for example in the case of a REST hook wanting to pass through an authorization header, the name would be Authorization.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.parameter.name",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false
          },
          {
            "id" : "Subscription.parameter.value",
            "path" : "Subscription.parameter.value",
            "short" : "Value of the parameter to use or pass through",
            "definition" : "Parameter value for information passed to the channel for notifications, for example in the case of a REST hook wanting to pass through an authorization header, the value would be `Bearer 0193...`.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.parameter.value",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : false
          },
          {
            "id" : "Subscription.heartbeatPeriod",
            "path" : "Subscription.heartbeatPeriod",
            "short" : "Interval in seconds to send 'heartbeat' notification",
            "definition" : "If present, a 'heartbeat' notification (keep-alive) is sent via this channel with an interval period equal to this elements integer value in seconds.  If not present, a heartbeat notification is not sent.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.heartbeatPeriod",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "unsignedInt"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.timeout",
            "path" : "Subscription.timeout",
            "short" : "Timeout in seconds to attempt notification delivery",
            "definition" : "If present, the maximum amount of time a server will allow before failing a notification attempt.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.timeout",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "unsignedInt"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          },
          {
            "id" : "Subscription.contentType",
            "path" : "Subscription.contentType",
            "short" : "MIME type to send, or omit for no payload",
            "definition" : "The MIME type to send the payload in - e.g., `application/fhir+xml` or `application/fhir+json`. Note that:\n\n* clients may request notifications in a specific FHIR version by using the [FHIR Version Parameter](http://hl7.org/fhir/R5/http.html#version-parameter) - e.g., `application/fhir+json; fhirVersion=4.0`.\n\n* additional MIME types can be allowed by channels - e.g., `text/plain` and `text/html` are defined by the Email channel.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.contentType",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "MimeType"
                }
              ],
              "strength" : "required",
              "description" : "BCP 13 (RFCs 2045, 2046, 2047, 4288, 4289 and 2049)",
              "valueSet" : "http://hl7.org/fhir/ValueSet/mimetypes|5.0.0"
            }
          },
          {
            "id" : "Subscription.content",
            "path" : "Subscription.content",
            "short" : "id-only",
            "definition" : "How much of the resource content to deliver in the notification payload. The choices are an empty payload, only the resource id, or the full resource content.",
            "comment" : "Sending the payload has obvious security implications. The server is responsible for ensuring that the content is appropriately secured.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Subscription.content",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "SubscriptionPayloadContent"
                }
              ],
              "strength" : "required",
              "description" : "Codes to represent how much resource content to send in the notification payload.",
              "valueSet" : "http://hl7.org/fhir/ValueSet/subscription-payload-content|5.0.0"
            }
          },
          {
            "id" : "Subscription.maxCount",
            "path" : "Subscription.maxCount",
            "short" : "Maximum number of events that can be combined in a single notification",
            "definition" : "If present, the maximum number of events that will be included in a notification bundle. Note that this is not a strict limit on the number of entries in a bundle, as dependent resources can be included.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Subscription.maxCount",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "positiveInt"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element"
              }
            ],
            "mustSupport" : false,
            "isModifier" : false,
            "isSummary" : true
          }
        ]
      },
      "differential" : {
        "element" : [
          {
            "id" : "Subscription",
            "path" : "Subscription"
          },
          {
            "id" : "Subscription.topic",
            "path" : "Subscription.topic",
            "short" : "Available topics are found at https://idmp.who-umc.org/fhir/SubscriptionTopic"
          },
          {
            "id" : "Subscription.channelType.system",
            "path" : "Subscription.channelType.system",
            "patternUri" : "http://terminology.hl7.org/CodeSystem/subscription-channel-type"
          },
          {
            "id" : "Subscription.channelType.code",
            "path" : "Subscription.channelType.code",
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://who-umc.org/idmp/ValueSet/channelType"
            }
          },
          {
            "id" : "Subscription.endpoint",
            "path" : "Subscription.endpoint",
            "min" : 1
          },
          {
            "id" : "Subscription.content",
            "path" : "Subscription.content",
            "short" : "id-only",
            "min" : 1
          }
        ]
      }
    }