EHDS Logical Information Models
0.4.0 - draft

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.4.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/Xt-EHR/xt-ehr-common/ and changes regularly. See the Directory of published versions

## Logical Model: EHDSAdvanceDirective - JSON Profile

Draft as of 2026-03-03

JSON representation of the EHDSAdvanceDirective logical model.

Raw json | Download

    {
      "resourceType" : "StructureDefinition",
      "id" : "EHDSAdvanceDirective",
      "text" : {
        "status" : "extensions",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition EHDSAdvanceDirective</b></p><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-EHDSAdvanceDirective-definitions.html#EHDSAdvanceDirective\" title=\"Healthcare directives concerning life or after life wishes of the patient\">EHDSAdvanceDirective</a><a name=\"EHDSAdvanceDirective\"> </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=\"StructureDefinition-EHDSDataSet.html\">EHDSDataSet</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\">Advance directive model<br/><br/>Elements defined in Ancestors:<a href=\"StructureDefinition-EHDSDataSet.html\" title=\"Basic metadata for this information\">header</a></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_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: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-EHDSAdvanceDirective-definitions.html#EHDSAdvanceDirective.header\">header</a><a name=\"EHDSAdvanceDirective.header\"> </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\"/><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\"/></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-EHDSAdvanceDirective-definitions.html#EHDSAdvanceDirective.header.author[x]\" title=\"Author of the advance directive.\">author[x]</a><a name=\"EHDSAdvanceDirective.header.author_x_\"> </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 style=\"opacity: 0.5; opacity: 0.5\" href=\"StructureDefinition-EHDSHealthProfessional.html\">EHDSHealthProfessional</a><span style=\"opacity: 0.5\">, </span><a style=\"opacity: 0.5; opacity: 0.5\" href=\"StructureDefinition-EHDSOrganisation.html\">EHDSOrganisation</a><span style=\"opacity: 0.5\">, </span><a style=\"opacity: 0.5; opacity: 0.5\" href=\"StructureDefinition-EHDSDevice.html\">EHDSDevice</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\">Author of the advance directive.</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_datatype.gif\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-EHDSAdvanceDirective-definitions.html#EHDSAdvanceDirective.category\" title=\"Categories of directives related to decisions prior and after death, such as life support, resuscitation or organ donation.\">category</a><a name=\"EHDSAdvanceDirective.category\"> </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\">0..*</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/datatypes.html#CodeableConcept\">CodeableConcept</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\">Categories of directives related to decisions prior and after death, such as life support, resuscitation or organ donation.<br class=\"binding\"/><span style=\"font-weight:bold\" title=\"null\" class=\"binding\">Binding Description: </span><span title=\"null\" class=\"binding\"> (</span><a href=\"http://hl7.org/fhir/R5/terminologies.html#preferred\" title=\"Instances are encouraged to draw from the specified codes for interoperability purposes but are not required to do so to be considered conformant.\" class=\"binding\">preferred</a><span title=\"null\" class=\"binding\">)</span><span title=\"null\" class=\"binding\">: </span><span title=\"null\" class=\"binding\">SNOMED CT</span><br/></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_primitive.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Primitive Data Type\" class=\"hierarchy\"/> <a href=\"StructureDefinition-EHDSAdvanceDirective-definitions.html#EHDSAdvanceDirective.note\" title=\"Textual description of the directive\">note</a><a name=\"EHDSAdvanceDirective.note\"> </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\">0..1</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/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\">Textual description of the directive</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_resource.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Resource\" class=\"hierarchy\"/> <a href=\"StructureDefinition-EHDSAdvanceDirective-definitions.html#EHDSAdvanceDirective.attachment\" title=\"Source document, such as a PDF, with the living will and the patient's signature.\">attachment</a><a name=\"EHDSAdvanceDirective.attachment\"> </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\">0..1</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=\"StructureDefinition-EHDSAttachment.html\">EHDSAttachment</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\">Source document, such as a PDF, with the living will and the patient's signature.</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://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSAdvanceDirective",
      "version" : "0.4.0",
      "name" : "EHDSAdvanceDirective",
      "title" : "Advance directive model",
      "status" : "draft",
      "date" : "2026-03-03T22:34:02+00:00",
      "publisher" : "Xt-EHR",
      "contact" : [
        {
          "name" : "Xt-EHR",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://www.xt-ehr.eu/"
            }
          ]
        }
      ],
      "description" : "Healthcare directives concerning life or after life wishes of the patient",
      "fhirVersion" : "5.0.0",
      "mapping" : [
        {
          "identity" : "rim",
          "uri" : "http://hl7.org/v3",
          "name" : "RIM Mapping"
        }
      ],
      "kind" : "logical",
      "abstract" : false,
      "type" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSAdvanceDirective",
      "baseDefinition" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDataSet",
      "derivation" : "specialization",
      "snapshot" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
            "valueString" : "0.4.0"
          }
        ],
        "element" : [
          {
            "id" : "EHDSAdvanceDirective",
            "path" : "EHDSAdvanceDirective",
            "short" : "Advance directive model",
            "definition" : "Healthcare directives concerning life or after life wishes of the patient",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Base",
              "min" : 0,
              "max" : "*"
            },
            "isModifier" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header",
            "path" : "EHDSAdvanceDirective.header",
            "short" : "Basic metadata for this information",
            "definition" : "Basic metadata for this information",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "EHDSDataSet.header",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "Base"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header.subject",
            "path" : "EHDSAdvanceDirective.header.subject",
            "short" : "Patient/subject information",
            "definition" : "Patient/subject information",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "EHDSDataSet.header.subject",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSPatient"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header.identifier",
            "path" : "EHDSAdvanceDirective.header.identifier",
            "short" : "Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).",
            "definition" : "Business identifier for the object, unique within its system. Supporting disambiguation between different contexts (systems/countries).",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "EHDSDataSet.header.identifier",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "Identifier"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header.author[x]",
            "path" : "EHDSAdvanceDirective.header.author[x]",
            "short" : "Author of the advance directive.",
            "definition" : "Author of the advance directive.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "EHDSDataSet.header.author[x]",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSHealthProfessional"
              },
              {
                "code" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSOrganisation"
              },
              {
                "code" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSDevice"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header.date",
            "path" : "EHDSAdvanceDirective.header.date",
            "short" : "Date and optionally time of authoring/issuing",
            "definition" : "Date and optionally time of authoring/issuing",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "EHDSDataSet.header.date",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "dateTime"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header.status",
            "path" : "EHDSAdvanceDirective.header.status",
            "short" : "Status of the resource or document",
            "definition" : "Status of the resource or document",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "EHDSDataSet.header.status",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "CodeableConcept"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header.source",
            "path" : "EHDSAdvanceDirective.header.source",
            "short" : "Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information.",
            "definition" : "Source of information (e.g. patient, patient's proxy). Used in case the patient has authored the information or the author has submitted patient-stated information.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "EHDSDataSet.header.source",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "CodeableConcept"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.header.language",
            "path" : "EHDSAdvanceDirective.header.language",
            "short" : "Language in which the resource is written. Language is expressed by the IETF language tag.",
            "definition" : "Language in which the resource is written. Language is expressed by the IETF language tag.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "EHDSDataSet.header.language",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "CodeableConcept"
              }
            ],
            "binding" : {
              "strength" : "preferred",
              "description" : "BCP 47"
            }
          },
          {
            "id" : "EHDSAdvanceDirective.category",
            "path" : "EHDSAdvanceDirective.category",
            "short" : "Categories of directives related to decisions prior and after death, such as life support, resuscitation or organ donation.",
            "definition" : "Categories of directives related to decisions prior and after death, such as life support, resuscitation or organ donation.",
            "requirements" : "ISO IPS",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "EHDSAdvanceDirective.category",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "CodeableConcept"
              }
            ],
            "binding" : {
              "strength" : "preferred",
              "description" : "SNOMED CT"
            }
          },
          {
            "id" : "EHDSAdvanceDirective.note",
            "path" : "EHDSAdvanceDirective.note",
            "short" : "Textual description of the directive",
            "definition" : "Textual description of the directive",
            "requirements" : "eHN PS and HDR Guidelines, MyHealth@EU, ISO IPS",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "EHDSAdvanceDirective.note",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.attachment",
            "path" : "EHDSAdvanceDirective.attachment",
            "short" : "Source document, such as a PDF, with the living will and the patient's signature.",
            "definition" : "Source document, such as a PDF, with the living will and the patient's signature.",
            "requirements" : "eHN HDR Guideline, ISO IPS",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "EHDSAdvanceDirective.attachment",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSAttachment"
              }
            ]
          }
        ]
      },
      "differential" : {
        "element" : [
          {
            "id" : "EHDSAdvanceDirective",
            "path" : "EHDSAdvanceDirective",
            "short" : "Advance directive model",
            "definition" : "Healthcare directives concerning life or after life wishes of the patient"
          },
          {
            "id" : "EHDSAdvanceDirective.header.author[x]",
            "path" : "EHDSAdvanceDirective.header.author[x]",
            "short" : "Author of the advance directive.",
            "definition" : "Author of the advance directive."
          },
          {
            "id" : "EHDSAdvanceDirective.category",
            "path" : "EHDSAdvanceDirective.category",
            "short" : "Categories of directives related to decisions prior and after death, such as life support, resuscitation or organ donation.",
            "definition" : "Categories of directives related to decisions prior and after death, such as life support, resuscitation or organ donation.",
            "requirements" : "ISO IPS",
            "min" : 0,
            "max" : "*",
            "type" : [
              {
                "code" : "CodeableConcept"
              }
            ],
            "binding" : {
              "strength" : "preferred",
              "description" : "SNOMED CT"
            }
          },
          {
            "id" : "EHDSAdvanceDirective.note",
            "path" : "EHDSAdvanceDirective.note",
            "short" : "Textual description of the directive",
            "definition" : "Textual description of the directive",
            "requirements" : "eHN PS and HDR Guidelines, MyHealth@EU, ISO IPS",
            "min" : 0,
            "max" : "1",
            "type" : [
              {
                "code" : "string"
              }
            ]
          },
          {
            "id" : "EHDSAdvanceDirective.attachment",
            "path" : "EHDSAdvanceDirective.attachment",
            "short" : "Source document, such as a PDF, with the living will and the patient's signature.",
            "definition" : "Source document, such as a PDF, with the living will and the patient's signature.",
            "requirements" : "eHN HDR Guideline, ISO IPS",
            "min" : 0,
            "max" : "1",
            "type" : [
              {
                "code" : "http://www.xt-ehr.eu/fhir/models/StructureDefinition/EHDSAttachment"
              }
            ]
          }
        ]
      }
    }