# Health Connect Australia Provider Directory FHIR Implementation Guide

26.0.0 - Trial

Health Connect Australia Provider Directory FHIR Implementation Guide, published by Australian Digital Health Agency. This guide is not an authorized publication; it is the continuous build for version 26.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/AuDigitalHealth/HCPD/ and changes regularly. See the Directory of published versions

## Data Type Profile: HCPD_SMD_Target_Identifier - JSON Profile

Active as of 2026-06-17

JSON representation of the hcpd-smd-target-identifier data type profile.

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    {
      "resourceType" : "StructureDefinition",
      "id" : "hcpd-smd-target-identifier",
      "text" : {
        "status" : "extensions",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition hcpd-smd-target-identifier</b></p><a name=\"hcpd-smd-target-identifier\"> </a><a name=\"hchcpd-smd-target-identifier\"> </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_element.gif\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-hcpd-smd-target-identifier-definitions.html#Identifier\" title=\"SMD Target Identifier that the practitioner has with Professional association / Peak body association (for non-Ahpra registered practitioners), as recorded against the HPI-I record.\">Identifier</a><a name=\"Identifier\"> </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/R4/datatypes.html#Identifier\">Identifier(4.0.1)</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\">SMD Target Identifier</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-hcpd-smd-target-identifier-definitions.html#Identifier.system\" title=\"Target identifier suitable for Secure Message Delivery interface metadata content; also allows lookup for responses.\">system</a><a name=\"Identifier.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\">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/R4/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\">Secure Messaging Delivery Target Identifier<br/><span style=\"font-weight:bold\">Fixed Value: </span><span style=\"color: darkgreen\">http://ns.electronichealth.net.au/smd/target</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_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: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-hcpd-smd-target-identifier-definitions.html#Identifier.value\" title=\"Assigning SMD target identifier value.\">value</a><a name=\"Identifier.value\"> </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/R4/datatypes.html#string\">string</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\">SMD Target Identifier Value<br/><span style=\"font-weight:bold\">Example SMD Target ID: </span><span style=\"color: darkgreen\">1234567890</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_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: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-hcpd-smd-target-identifier-definitions.html#Identifier.assigner\" title=\"Organization that issued the smdTarget identifier (may be just text).\">assigner</a><a name=\"Identifier.assigner\"> </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 href=\"http://hl7.org/fhir/R4/references.html\">Reference</a>(<a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/fhir/R4/organization.html\">Organization</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\">Organization that issued the smdTarget identifier (may be just text)</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://digitalhealth.gov.au/fhir/hcpd/StructureDefinition/hcpd-smd-target-identifier",
      "version" : "26.0.0",
      "name" : "HCPD_SMD_Target_Identifier",
      "title" : "HCPD SMD Target Identifier (HCPD-SMDTI)",
      "status" : "active",
      "experimental" : false,
      "date" : "2026-06-17T22:44:36+00:00",
      "publisher" : "Australian Digital Health Agency",
      "contact" : [
        {
          "name" : "Australian Digital Health Agency",
          "telecom" : [
            {
              "system" : "url",
              "value" : "https://www.digitalhealth.gov.au/"
            },
            {
              "system" : "email",
              "value" : "help@digitalhealth.gov.au"
            }
          ]
        },
        {
          "name" : "Australian Digital Health Agency",
          "telecom" : [
            {
              "system" : "email",
              "value" : "mailto:help@digitalhealth.gov.au",
              "use" : "work"
            }
          ]
        }
      ],
      "description" : "This identifier profile defines a SMD target identifier allocated to a healthcare practitioner, in a Health Connect Provider Directory context.",
      "useContext" : [
        {
          "code" : {
            "system" : "http://terminology.hl7.org/CodeSystem/usage-context-type",
            "code" : "jurisdiction"
          },
          "valueCodeableConcept" : {
            "coding" : [
              {
                "system" : "urn:iso:std:iso:3166",
                "code" : "AU",
                "display" : "Australia"
              }
            ]
          }
        }
      ],
      "copyright" : "Copyright © 2026 Australian Digital Health Agency - All rights reserved. This content is licensed under a Creative Commons Attribution 4.0 International License. See [https://creativecommons.org/licenses/by/4.0/](https://creativecommons.org/licenses/by/4.0/)",
      "fhirVersion" : "4.0.1",
      "mapping" : [
        {
          "identity" : "v2",
          "uri" : "http://hl7.org/v2",
          "name" : "HL7 v2 Mapping"
        },
        {
          "identity" : "rim",
          "uri" : "http://hl7.org/v3",
          "name" : "RIM Mapping"
        },
        {
          "identity" : "servd",
          "uri" : "http://www.omg.org/spec/ServD/1.0/",
          "name" : "ServD"
        }
      ],
      "kind" : "complex-type",
      "abstract" : false,
      "type" : "Identifier",
      "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Identifier|4.0.1",
      "derivation" : "constraint",
      "snapshot" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
            "valueString" : "4.0.1"
          }
        ],
        "element" : [
          {
            "id" : "Identifier",
            "path" : "Identifier",
            "short" : "SMD Target Identifier",
            "definition" : "SMD Target Identifier that the practitioner has with Professional association / Peak body association (for non-Ahpra registered practitioners), as recorded against the HPI-I record.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Identifier",
              "min" : 0,
              "max" : "*"
            },
            "condition" : [
              "ele-1"
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              }
            ],
            "isModifier" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              },
              {
                "identity" : "v2",
                "map" : "CX / EI (occasionally, more often EI maps to a resource id or a URL)"
              },
              {
                "identity" : "rim",
                "map" : "II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]"
              },
              {
                "identity" : "servd",
                "map" : "Identifier"
              }
            ]
          },
          {
            "id" : "Identifier.id",
            "path" : "Identifier.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"
              }
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Identifier.extension",
            "path" : "Identifier.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 manageable, 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())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              },
              {
                "key" : "ext-1",
                "severity" : "error",
                "human" : "Must have either extensions or value[x], not both",
                "expression" : "extension.exists() != value.exists()",
                "xpath" : "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
                "source" : "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"
              }
            ],
            "isModifier" : false,
            "isSummary" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Identifier.use",
            "path" : "Identifier.use",
            "short" : "usual | official | temp | secondary | old (If known)",
            "definition" : "The purpose of this identifier.",
            "comment" : "Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.",
            "requirements" : "Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Identifier.use",
              "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())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              }
            ],
            "isModifier" : true,
            "isModifierReason" : "This is labeled as \"Is Modifier\" because applications should not mistake a temporary id for a permanent one.",
            "isSummary" : true,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "IdentifierUse"
                }
              ],
              "strength" : "required",
              "description" : "Identifies the purpose for this identifier, if known .",
              "valueSet" : "http://hl7.org/fhir/ValueSet/identifier-use|4.0.1"
            },
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "N/A"
              },
              {
                "identity" : "rim",
                "map" : "Role.code or implied by context"
              }
            ]
          },
          {
            "id" : "Identifier.type",
            "path" : "Identifier.type",
            "short" : "Description of identifier",
            "definition" : "A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.",
            "comment" : "This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.",
            "requirements" : "Allows users to make use of identifiers when the identifier system is not known.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Identifier.type",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "CodeableConcept"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "binding" : {
              "extension" : [
                {
                  "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
                  "valueString" : "IdentifierType"
                }
              ],
              "strength" : "extensible",
              "description" : "A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.",
              "valueSet" : "http://hl7.org/fhir/ValueSet/identifier-type|4.0.1"
            },
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "CX.5"
              },
              {
                "identity" : "rim",
                "map" : "Role.code or implied by context"
              }
            ]
          },
          {
            "id" : "Identifier.system",
            "path" : "Identifier.system",
            "short" : "Secure Messaging Delivery Target Identifier",
            "definition" : "Target identifier suitable for Secure Message Delivery interface metadata content; also allows lookup for responses.",
            "comment" : "Identifier.system is always case sensitive.",
            "requirements" : "There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Identifier.system",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "uri"
              }
            ],
            "fixedUri" : "http://ns.electronichealth.net.au/smd/target",
            "example" : [
              {
                "label" : "General",
                "valueUri" : "http://www.acme.com/identifiers/patient"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "CX.4 / EI-2-4"
              },
              {
                "identity" : "rim",
                "map" : "II.root or Role.id.root"
              },
              {
                "identity" : "servd",
                "map" : "./IdentifierType"
              }
            ]
          },
          {
            "id" : "Identifier.value",
            "path" : "Identifier.value",
            "short" : "SMD Target Identifier Value",
            "definition" : "Assigning SMD target identifier value.",
            "comment" : "If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value's primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](http://hl7.org/fhir/R4/extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Identifier.value",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ],
            "example" : [
              {
                "label" : "General",
                "valueString" : "123456"
              },
              {
                "label" : "SMD Target ID",
                "valueString" : "1234567890"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "CX.1 / EI.1"
              },
              {
                "identity" : "rim",
                "map" : "II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)"
              },
              {
                "identity" : "servd",
                "map" : "./Value"
              }
            ]
          },
          {
            "id" : "Identifier.period",
            "path" : "Identifier.period",
            "short" : "Time period when id is/was valid for use",
            "definition" : "Time period during which identifier is/was valid for use.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Identifier.period",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Period"
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "CX.7 + CX.8"
              },
              {
                "identity" : "rim",
                "map" : "Role.effectiveTime or implied by context"
              },
              {
                "identity" : "servd",
                "map" : "./StartDate and ./EndDate"
              }
            ]
          },
          {
            "id" : "Identifier.assigner",
            "path" : "Identifier.assigner",
            "short" : "Organization that issued the smdTarget identifier (may be just text)",
            "definition" : "Organization that issued the smdTarget identifier (may be just text).",
            "comment" : "The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Identifier.assigner",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Reference",
                "targetProfile" : [
                  🔗 "http://hl7.org/fhir/StructureDefinition/Organization|4.0.1"
                ]
              }
            ],
            "constraint" : [
              {
                "key" : "ele-1",
                "severity" : "error",
                "human" : "All FHIR elements must have a @value or children",
                "expression" : "hasValue() or (children().count() > id.count())",
                "xpath" : "@value|f:*|h:div",
                "source" : "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
              }
            ],
            "isModifier" : false,
            "isSummary" : true,
            "mapping" : [
              {
                "identity" : "v2",
                "map" : "CX.4 / (CX.4,CX.9,CX.10)"
              },
              {
                "identity" : "rim",
                "map" : "II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper"
              },
              {
                "identity" : "servd",
                "map" : "./IdentifierIssuingAuthority"
              }
            ]
          }
        ]
      },
      "differential" : {
        "element" : [
          {
            "id" : "Identifier",
            "path" : "Identifier",
            "short" : "SMD Target Identifier",
            "definition" : "SMD Target Identifier that the practitioner has with Professional association / Peak body association (for non-Ahpra registered practitioners), as recorded against the HPI-I record."
          },
          {
            "id" : "Identifier.system",
            "path" : "Identifier.system",
            "short" : "Secure Messaging Delivery Target Identifier",
            "definition" : "Target identifier suitable for Secure Message Delivery interface metadata content; also allows lookup for responses.",
            "min" : 1,
            "fixedUri" : "http://ns.electronichealth.net.au/smd/target"
          },
          {
            "id" : "Identifier.value",
            "path" : "Identifier.value",
            "short" : "SMD Target Identifier Value",
            "definition" : "Assigning SMD target identifier value.",
            "min" : 1,
            "example" : [
              {
                "label" : "SMD Target ID",
                "valueString" : "1234567890"
              }
            ]
          },
          {
            "id" : "Identifier.assigner",
            "path" : "Identifier.assigner",
            "short" : "Organization that issued the smdTarget identifier (may be just text)",
            "definition" : "Organization that issued the smdTarget identifier (may be just text)."
          }
        ]
      }
    }