Advance Healthcare Directive Interoperability (cda-adi)
0.1.0 - ci-build

Advance Healthcare Directive Interoperability (cda-adi), published by Health Level Seven. 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/HL7/cda-adi/ and changes regularly. See the Directory of published versions

## Logical Model: Additional_Documentation_Section - JSON Profile

Draft as of 2026-05-29

JSON representation of the AdditionalDocumentationSection logical model.

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    {
      "resourceType" : "StructureDefinition",
      "id" : "AdditionalDocumentationSection",
      "text" : {
        "status" : "extensions",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: StructureDefinition AdditionalDocumentationSection</b></p><a name=\"AdditionalDocumentationSection\"> </a><a name=\"hcAdditionalDocumentationSection\"> </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-AdditionalDocumentationSection-definitions.html#Section\">Section</a><a name=\"Section\"> </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\">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: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px\" class=\"hierarchy\"><a href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-Section.html\">Section</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=\"font-weight:bold\">XML Namespace: </span>urn:hl7-org:v3<br/><span style=\"opacity: 0.5\">Base for all types and resources</span><br/><span style=\"font-weight:bold\">Instance of this type are validated by templateId</span><br/><span style=\"font-weight:bold\" title=\"The root class that contains instances of this class\">Logical Container: </span><a href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-ClinicalDocument.html\">ClinicalDocument (CDA Class)</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-AdditionalDocumentationSection-definitions.html#Section.templateId\">templateId</a><a name=\"Section.templateId\"> </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\">*</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/cda/stds/core/2.0.2-sd/StructureDefinition-II.html\">II</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\"/></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_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: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-AdditionalDocumentationSection-definitions.html#Section.templateId.root\">@root</a><a name=\"Section.templateId.root\"> </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/cda/stds/core/2.0.2-sd/StructureDefinition-oid.html\" title=\"string\">oid</a><span style=\"opacity: 0.5\">, </span><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-uuid.html\" title=\"string\">uuid</a><span style=\"opacity: 0.5\">, </span><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-ruid.html\" title=\"string\">ruid</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=\"font-weight:bold\">Required Pattern: </span><span style=\"color: darkgreen\">2.16.840.1.113883.4.823.1.3.8</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_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_extension_simple.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Simple Extension\" class=\"hierarchy\"/> <a href=\"StructureDefinition-AdditionalDocumentationSection-definitions.html#Section.templateId.extension\">@extension</a><a name=\"Section.templateId.extension\"> </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/cda/stds/core/2.0.2-sd/StructureDefinition-st-simple.html\" title=\"string\">st</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=\"font-weight:bold\">Required Pattern: </span><span style=\"color: darkgreen\">2026-08-28</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_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-AdditionalDocumentationSection-definitions.html#Section.code\">code</a><a name=\"Section.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\">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/cda/stds/core/2.0.2-sd/StructureDefinition-CE.html\">CE</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\">Additional Documentation Section</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_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-AdditionalDocumentationSection-definitions.html#Section.code.code\">@code</a><a name=\"Section.code.code\"> </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/cda/stds/core/2.0.2-sd/StructureDefinition-cs-simple.html\" title=\"code\">cs</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=\"font-weight:bold\">Required Pattern: </span><span style=\"color: darkgreen\">77599-9</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_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: white; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-AdditionalDocumentationSection-definitions.html#Section.code.codeSystem\">@codeSystem</a><a name=\"Section.code.codeSystem\"> </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/cda/stds/core/2.0.2-sd/StructureDefinition-oid.html\" title=\"string\">oid</a><span style=\"opacity: 0.5\">, </span><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-uuid.html\" title=\"string\">uuid</a><span style=\"opacity: 0.5\">, </span><a style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-ruid.html\" title=\"string\">ruid</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=\"font-weight:bold\">Required Pattern: </span><span style=\"color: darkgreen\">2.16.840.1.113883.6.1</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_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: #F7F7F7; background-color: inherit\" title=\"Element\" class=\"hierarchy\"/> <a href=\"StructureDefinition-AdditionalDocumentationSection-definitions.html#Section.code.codeSystemName\">@codeSystemName</a><a name=\"Section.code.codeSystemName\"> </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/cda/stds/core/2.0.2-sd/StructureDefinition-st-simple.html\" title=\"string\">st</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=\"font-weight:bold\">Required Pattern: </span><span style=\"color: darkgreen\">LOINC</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-AdditionalDocumentationSection-definitions.html#Section.title\">title</a><a name=\"Section.title\"> </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/cda/stds/core/2.0.2-sd/StructureDefinition-ST.html\">ST</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\">Additional Documentation</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-AdditionalDocumentationSection-definitions.html#Section.text\">text</a><a name=\"Section.text\"> </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/narrative.html#xhtml\">xhtml</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\">Rendering of information about additional relevant documents</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_bck03.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_slice.png\" alt=\".\" style=\"background-color: white; background-color: inherit\" title=\"Slice Definition\" class=\"hierarchy\"/> <a style=\"font-style: italic; font-style: italic\" href=\"StructureDefinition-AdditionalDocumentationSection-definitions.html#Section.entry\">Slices for entry</a><a name=\"Section.entry\"> </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=\"font-style: italic\"/><span style=\"font-style: italic\">1</span><span style=\"font-style: italic\">..</span><span style=\"opacity: 0.5; font-style: italic\">*</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; font-style: italic; opacity: 0.5; font-style: italic\" href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-Entry.html\">Entry</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=\"font-weight:bold; font-style: italic\">Slice: </span><span style=\"font-style: italic\">Unordered, Open by profile:observation</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_bck025.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slicer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"icon_slice_item.png\" alt=\".\" style=\"background-color: #F7F7F7; background-color: inherit\" title=\"Slice Item\" class=\"hierarchy\"/> <a href=\"StructureDefinition-AdditionalDocumentationSection-definitions.html#Section.entry:advanceDirectiveExists\" title=\"Slice advanceDirectiveExists\">entry:advanceDirectiveExists</a><a name=\"Section.entry.2\"> </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=\"padding-left: 3px; padding-right: 3px; color: white; background-color: #D50000\" title=\"This element must be supported\">S</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\">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 style=\"opacity: 0.5; opacity: 0.5\" href=\"http://hl7.org/cda/stds/core/2.0.2-sd/StructureDefinition-Entry.html\">Entry</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\"/></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_bck0240.png)\" class=\"hierarchy\"><img src=\"tbl_spacer.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_blank.png\" alt=\".\" style=\"background-color: inherit\" class=\"hierarchy\"/><img src=\"tbl_vjoin_end_slice.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-AdditionalDocumentationSection-definitions.html#Section.entry:advanceDirectiveExists.observation\">observation</a><a name=\"Section.entry.observation\"> </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=\"padding-left: 3px; padding-right: 3px; color: white; background-color: #D50000\" title=\"This element must be supported\">S</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\">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 href=\"http://hl7.org/cda/us/ccda/2026Jan/StructureDefinition-AdvanceDirectiveExistenceObservation.html\" title=\"http://hl7.org/cda/stds/core/StructureDefinition/Observation\">AdvanceDirectiveExistenceObservation</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\"/></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>"
      },
      "extension" : [
        {
          "url" : "http://hl7.org/fhir/tools/StructureDefinition/logical-target",
          "_valueBoolean" : {
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
                "valueCode" : "not-applicable"
              }
            ]
          }
        },
        {
          "url" : "http://hl7.org/fhir/tools/StructureDefinition/xml-namespace",
          "valueUri" : "urn:hl7-org:v3"
        },
        {
          "url" : "http://hl7.org/fhir/tools/StructureDefinition/xml-name",
          "valueString" : "section"
        },
        {
          "url" : "http://hl7.org/fhir/tools/StructureDefinition/logical-container",
          "valueUri" : "http://hl7.org/cda/stds/core/StructureDefinition/ClinicalDocument"
        },
        {
          "url" : "http://hl7.org/fhir/tools/StructureDefinition/type-profile-style",
          "valueCode" : "cda"
        }
      ],
      "url" : "http://hl7.org/cda/us/adi/StructureDefinition/AdditionalDocumentationSection",
      "version" : "0.1.0",
      "name" : "Additional_Documentation_Section",
      "title" : "Additional Documentation Section",
      "status" : "draft",
      "date" : "2026-05-29T13:15:02+00:00",
      "publisher" : "Health Level Seven",
      "contact" : [
        {
          "name" : "Health Level Seven",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://www.hl7.org/Special/committees/structure"
            }
          ]
        }
      ],
      "description" : "This section contains information about additional relevant advance healthcare directive documents.",
      "fhirVersion" : "5.0.0",
      "mapping" : [
        {
          "identity" : "rim",
          "uri" : "http://hl7.org/v3",
          "name" : "RIM Mapping"
        }
      ],
      "kind" : "logical",
      "abstract" : false,
      "type" : "http://hl7.org/cda/stds/core/StructureDefinition/Section",
      "baseDefinition" : "http://hl7.org/cda/stds/core/StructureDefinition/Section",
      "derivation" : "constraint",
      "snapshot" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
            "valueString" : "2.0.2-sd"
          }
        ],
        "element" : [
          {
            "id" : "Section",
            "path" : "Section",
            "short" : "Base for all types and resources",
            "definition" : "Defines the basic properties of every data value. This is an abstract type, meaning that no value can be just a data value without belonging to any concrete type. Every concrete type is a specialization of this general abstract DataValue type.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Base",
              "min" : 0,
              "max" : "*"
            },
            "isModifier" : false,
            "mapping" : [
              {
                "identity" : "rim",
                "map" : "n/a"
              }
            ]
          },
          {
            "id" : "Section.nullFlavor",
            "path" : "Section.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.realmCode",
            "path" : "Section.realmCode",
            "definition" : "When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "InfrastructureRoot.realmCode",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CS"
              }
            ]
          },
          {
            "id" : "Section.typeId",
            "path" : "Section.typeId",
            "definition" : "When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "InfrastructureRoot.typeId",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/II"
              }
            ],
            "constraint" : [
              {
                "key" : "II-1",
                "severity" : "error",
                "human" : "An II instance must have either a root or an nullFlavor.",
                "expression" : "root.exists() or nullFlavor.exists()",
                "source" : "http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot"
              }
            ]
          },
          {
            "id" : "Section.typeId.nullFlavor",
            "path" : "Section.typeId.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.typeId.assigningAuthorityName",
            "path" : "Section.typeId.assigningAuthorityName",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Assigning Authority Name",
            "definition" : "A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.assigningAuthorityName",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.typeId.displayable",
            "path" : "Section.typeId.displayable",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Displayable",
            "definition" : "Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.displayable",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "boolean",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.typeId.root",
            "path" : "Section.typeId.root",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Root",
            "definition" : "Identifies the type as an HL7 Registered model",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.root",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/oid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/uuid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/ruid"
                ]
              }
            ],
            "fixedString" : "2.16.840.1.113883.1.3"
          },
          {
            "id" : "Section.typeId.extension",
            "path" : "Section.typeId.extension",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Extension",
            "definition" : "A character string as a unique identifier within the scope of the identifier root.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.extension",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.templateId",
            "path" : "Section.templateId",
            "definition" : "When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question",
            "min" : 1,
            "max" : "*",
            "base" : {
              "path" : "InfrastructureRoot.templateId",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/II"
              }
            ]
          },
          {
            "id" : "Section.templateId.nullFlavor",
            "path" : "Section.templateId.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.templateId.assigningAuthorityName",
            "path" : "Section.templateId.assigningAuthorityName",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Assigning Authority Name",
            "definition" : "A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.assigningAuthorityName",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.templateId.displayable",
            "path" : "Section.templateId.displayable",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Displayable",
            "definition" : "Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.displayable",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "boolean",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.templateId.root",
            "path" : "Section.templateId.root",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Root",
            "definition" : "A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.root",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/oid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/uuid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/ruid"
                ]
              }
            ],
            "patternString" : "2.16.840.1.113883.4.823.1.3.8"
          },
          {
            "id" : "Section.templateId.extension",
            "path" : "Section.templateId.extension",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Extension",
            "definition" : "A character string as a unique identifier within the scope of the identifier root.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.extension",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ],
            "patternString" : "2026-08-28"
          },
          {
            "id" : "Section.ID",
            "path" : "Section.ID",
            "representation" : [
              "xmlAttr"
            ],
            "short" : "Can serve as a target of a linkHtml reference",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.ID",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "id",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/xs-ID"
                ]
              }
            ]
          },
          {
            "id" : "Section.classCode",
            "path" : "Section.classCode",
            "representation" : [
              "xmlAttr"
            ],
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.classCode",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "fixedCode" : "DOCSECT",
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://terminology.hl7.org/ValueSet/v3-ActClassRecordOrganizer|3.0.0"
            }
          },
          {
            "id" : "Section.moodCode",
            "path" : "Section.moodCode",
            "representation" : [
              "xmlAttr"
            ],
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.moodCode",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "fixedCode" : "EVN",
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDAActMood"
            }
          },
          {
            "id" : "Section.id",
            "path" : "Section.id",
            "short" : "Unique instance identifier of a particular document section",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.id",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/II"
              }
            ]
          },
          {
            "id" : "Section.code",
            "path" : "Section.code",
            "short" : "Additional Documentation Section",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Section.code",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CE"
              }
            ]
          },
          {
            "id" : "Section.code.nullFlavor",
            "path" : "Section.code.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.code.code",
            "path" : "Section.code.code",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Code",
            "definition" : "The plain code symbol defined by the code system. For example, \"784.0\" is the code symbol of the ICD-9 code \"784.0\" for headache.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "CD.code",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "patternCode" : "77599-9"
          },
          {
            "id" : "Section.code.codeSystem",
            "path" : "Section.code.codeSystem",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Code System",
            "definition" : "Specifies the code system that defines the code.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "CD.codeSystem",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/oid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/uuid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/ruid"
                ]
              }
            ],
            "patternString" : "2.16.840.1.113883.6.1"
          },
          {
            "id" : "Section.code.codeSystemName",
            "path" : "Section.code.codeSystemName",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Code System Name",
            "definition" : "The common name of the coding system.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CD.codeSystemName",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ],
            "patternString" : "LOINC"
          },
          {
            "id" : "Section.code.codeSystemVersion",
            "path" : "Section.code.codeSystemVersion",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Code System Version",
            "definition" : "If applicable, a version descriptor defined specifically for the given code system.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CD.codeSystemVersion",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.code.displayName",
            "path" : "Section.code.displayName",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Display Name",
            "definition" : "A name or title for the code, under which the sending system shows the code value to its users.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CD.displayName",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.code.sdtcValueSet",
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/xml-namespace",
                "valueUri" : "urn:hl7-org:sdtc"
              },
              {
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/xml-name",
                "valueString" : "valueSet"
              }
            ],
            "path" : "Section.code.sdtcValueSet",
            "representation" : [
              "xmlAttr"
            ],
            "definition" : "The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CD.valueSet",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/oid"
                ]
              }
            ]
          },
          {
            "id" : "Section.code.sdtcValueSetVersion",
            "extension" : [
              {
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/xml-namespace",
                "valueUri" : "urn:hl7-org:sdtc"
              },
              {
                "url" : "http://hl7.org/fhir/tools/StructureDefinition/xml-name",
                "valueString" : "valueSetVersion"
              }
            ],
            "path" : "Section.code.sdtcValueSetVersion",
            "representation" : [
              "xmlAttr"
            ],
            "definition" : "The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CD.sdtcValueSetVersion",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.code.originalText",
            "path" : "Section.code.originalText",
            "label" : "Original Text",
            "definition" : "The text or phrase used as the basis for the coding.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "CD.originalText",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/ED"
              }
            ]
          },
          {
            "id" : "Section.code.qualifier",
            "path" : "Section.code.qualifier",
            "label" : "Qualifier",
            "definition" : "Specifies additional codes that increase the specificity of the the primary code.",
            "min" : 0,
            "max" : "0",
            "base" : {
              "path" : "CD.qualifier",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CR"
              }
            ]
          },
          {
            "id" : "Section.code.translation",
            "path" : "Section.code.translation",
            "representation" : [
              "typeAttr"
            ],
            "label" : "Translation",
            "definition" : "A set of other concept descriptors that translate this concept descriptor into other code systems.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "CD.translation",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CD"
              }
            ]
          },
          {
            "id" : "Section.title",
            "path" : "Section.title",
            "short" : "Additional Documentation",
            "requirements" : "If valued, it is to be rendered as part of the narrative content of the clinical document body.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Section.title",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/ST"
              }
            ]
          },
          {
            "id" : "Section.text",
            "path" : "Section.text",
            "representation" : [
              "cdaText"
            ],
            "short" : "Rendering of information about additional relevant documents",
            "comment" : "Also referred to as the CDA Narrative Block",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.text",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "xhtml"
              }
            ]
          },
          {
            "id" : "Section.confidentialityCode",
            "path" : "Section.confidentialityCode",
            "short" : "Controls the disclosure of information in this section",
            "requirements" : "A value for Section.confidentialityCode overrides the value propagated from StructuredBody.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.confidentialityCode",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CE"
              }
            ]
          },
          {
            "id" : "Section.languageCode",
            "path" : "Section.languageCode",
            "short" : "Human language of character data",
            "requirements" : "A value for Section.languageCode overrides the value propagated from StructuredBody.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.languageCode",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CS"
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/fhir/ValueSet/all-languages"
            }
          },
          {
            "id" : "Section.subject",
            "path" : "Section.subject",
            "short" : "Primary target of the entries recorded in a section",
            "comment" : "Most of the time the subject is the same as the recordTarget, but need not be, for instance when the subject is a fetus observed in an obstetrical ultrasound.",
            "requirements" : "The subject participant can be ascribed to a CDA section or a CDA entry. It propagates to nested components, unless overridden. The subject of a document is presumed to be the patient.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.subject",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Subject"
              }
            ]
          },
          {
            "id" : "Section.author",
            "path" : "Section.author",
            "requirements" : "The author participant can be ascribed to a CDA section, where it overrides the value(s) propagated from the CDA header.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Section.author",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Author"
              }
            ]
          },
          {
            "id" : "Section.informant",
            "path" : "Section.informant",
            "requirements" : "The informant participant can be ascribed to a CDA section where it overrides the value(s) propagated from the CDA header.",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Section.informant",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Informant"
              }
            ]
          },
          {
            "id" : "Section.entry",
            "path" : "Section.entry",
            "slicing" : {
              "discriminator" : [
                {
                  "type" : "profile",
                  "path" : "observation"
                }
              ],
              "rules" : "open"
            },
            "comment" : "SHALL contain at least one [1..*] entry.",
            "min" : 1,
            "max" : "*",
            "base" : {
              "path" : "Section.entry",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Entry"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists",
            "path" : "Section.entry",
            "sliceName" : "advanceDirectiveExists",
            "min" : 1,
            "max" : "*",
            "base" : {
              "path" : "Section.entry",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Entry"
              }
            ],
            "mustSupport" : true
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.nullFlavor",
            "path" : "Section.entry.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.realmCode",
            "path" : "Section.entry.realmCode",
            "definition" : "When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "InfrastructureRoot.realmCode",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CS"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.typeId",
            "path" : "Section.entry.typeId",
            "definition" : "When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "InfrastructureRoot.typeId",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/II"
              }
            ],
            "constraint" : [
              {
                "key" : "II-1",
                "severity" : "error",
                "human" : "An II instance must have either a root or an nullFlavor.",
                "expression" : "root.exists() or nullFlavor.exists()",
                "source" : "http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.typeId.nullFlavor",
            "path" : "Section.entry.typeId.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.typeId.assigningAuthorityName",
            "path" : "Section.entry.typeId.assigningAuthorityName",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Assigning Authority Name",
            "definition" : "A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.assigningAuthorityName",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.typeId.displayable",
            "path" : "Section.entry.typeId.displayable",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Displayable",
            "definition" : "Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.displayable",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "boolean",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.typeId.root",
            "path" : "Section.entry.typeId.root",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Root",
            "definition" : "Identifies the type as an HL7 Registered model",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.root",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/oid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/uuid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/ruid"
                ]
              }
            ],
            "fixedString" : "2.16.840.1.113883.1.3"
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.typeId.extension",
            "path" : "Section.entry.typeId.extension",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Extension",
            "definition" : "A character string as a unique identifier within the scope of the identifier root.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.extension",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.templateId",
            "path" : "Section.entry.templateId",
            "definition" : "When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "InfrastructureRoot.templateId",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/II"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.typeCode",
            "path" : "Section.entry.typeCode",
            "representation" : [
              "xmlAttr"
            ],
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.typeCode",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "defaultValueCode" : "COMP",
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://terminology.hl7.org/ValueSet/v3-xActRelationshipEntry|3.0.0"
            }
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.contextConductionInd",
            "path" : "Section.entry.contextConductionInd",
            "representation" : [
              "xmlAttr"
            ],
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.contextConductionInd",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "boolean",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"
                ]
              }
            ],
            "fixedBoolean" : true
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.act",
            "path" : "Section.entry.act",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.act",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Act"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.encounter",
            "path" : "Section.entry.encounter",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.encounter",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Encounter"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.observation",
            "path" : "Section.entry.observation",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Entry.observation",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Observation",
                "profile" : [
                  🔗 "http://hl7.org/cda/us/ccda/StructureDefinition/AdvanceDirectiveExistenceObservation"
                ]
              }
            ],
            "mustSupport" : true
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.observationMedia",
            "path" : "Section.entry.observationMedia",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.observationMedia",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/ObservationMedia"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.organizer",
            "path" : "Section.entry.organizer",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.organizer",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Organizer"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.procedure",
            "path" : "Section.entry.procedure",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.procedure",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Procedure"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.regionOfInterest",
            "path" : "Section.entry.regionOfInterest",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.regionOfInterest",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/RegionOfInterest"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.substanceAdministration",
            "path" : "Section.entry.substanceAdministration",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.substanceAdministration",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/SubstanceAdministration"
              }
            ]
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.supply",
            "path" : "Section.entry.supply",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Entry.supply",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Supply"
              }
            ]
          },
          {
            "id" : "Section.component",
            "path" : "Section.component",
            "short" : "Used to nest a Section within a Section",
            "requirements" : "Context propagates to nested sections",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "Section.component",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot"
              }
            ]
          },
          {
            "id" : "Section.component.nullFlavor",
            "path" : "Section.component.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.component.realmCode",
            "path" : "Section.component.realmCode",
            "definition" : "When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "InfrastructureRoot.realmCode",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/CS"
              }
            ]
          },
          {
            "id" : "Section.component.typeId",
            "path" : "Section.component.typeId",
            "definition" : "When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "InfrastructureRoot.typeId",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/II"
              }
            ],
            "constraint" : [
              {
                "key" : "II-1",
                "severity" : "error",
                "human" : "An II instance must have either a root or an nullFlavor.",
                "expression" : "root.exists() or nullFlavor.exists()",
                "source" : "http://hl7.org/cda/stds/core/StructureDefinition/Section"
              }
            ]
          },
          {
            "id" : "Section.component.typeId.nullFlavor",
            "path" : "Section.component.typeId.nullFlavor",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Exceptional Value Detail",
            "definition" : "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "ANY.nullFlavor",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "binding" : {
              "strength" : "required",
              "valueSet" : "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
            }
          },
          {
            "id" : "Section.component.typeId.assigningAuthorityName",
            "path" : "Section.component.typeId.assigningAuthorityName",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Assigning Authority Name",
            "definition" : "A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.assigningAuthorityName",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.component.typeId.displayable",
            "path" : "Section.component.typeId.displayable",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Displayable",
            "definition" : "Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "II.displayable",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "boolean",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.component.typeId.root",
            "path" : "Section.component.typeId.root",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Root",
            "definition" : "Identifies the type as an HL7 Registered model",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.root",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/oid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/uuid"🔗 ,
                  "http://hl7.org/cda/stds/core/StructureDefinition/ruid"
                ]
              }
            ],
            "fixedString" : "2.16.840.1.113883.1.3"
          },
          {
            "id" : "Section.component.typeId.extension",
            "path" : "Section.component.typeId.extension",
            "representation" : [
              "xmlAttr"
            ],
            "label" : "Extension",
            "definition" : "A character string as a unique identifier within the scope of the identifier root.",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "II.extension",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "string",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/st-simple"
                ]
              }
            ]
          },
          {
            "id" : "Section.component.templateId",
            "path" : "Section.component.templateId",
            "definition" : "When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question",
            "min" : 0,
            "max" : "*",
            "base" : {
              "path" : "InfrastructureRoot.templateId",
              "min" : 0,
              "max" : "*"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/II"
              }
            ]
          },
          {
            "id" : "Section.component.typeCode",
            "path" : "Section.component.typeCode",
            "representation" : [
              "xmlAttr"
            ],
            "definition" : "Drawn from concept domain DocumentSectionType",
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.component.typeCode",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "code",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
                ]
              }
            ],
            "fixedCode" : "COMP"
          },
          {
            "id" : "Section.component.contextConductionInd",
            "path" : "Section.component.contextConductionInd",
            "representation" : [
              "xmlAttr"
            ],
            "min" : 0,
            "max" : "1",
            "base" : {
              "path" : "Section.component.contextConductionInd",
              "min" : 0,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "boolean",
                "profile" : [
                  🔗 "http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"
                ]
              }
            ],
            "fixedBoolean" : true
          },
          {
            "id" : "Section.component.section",
            "path" : "Section.component.section",
            "min" : 1,
            "max" : "1",
            "base" : {
              "path" : "Section.component.section",
              "min" : 1,
              "max" : "1"
            },
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Section"
              }
            ]
          }
        ]
      },
      "differential" : {
        "element" : [
          {
            "id" : "Section",
            "path" : "Section"
          },
          {
            "id" : "Section.templateId",
            "path" : "Section.templateId",
            "min" : 1
          },
          {
            "id" : "Section.templateId.root",
            "path" : "Section.templateId.root",
            "min" : 1,
            "patternString" : "2.16.840.1.113883.4.823.1.3.8"
          },
          {
            "id" : "Section.templateId.extension",
            "path" : "Section.templateId.extension",
            "min" : 1,
            "patternString" : "2026-08-28"
          },
          {
            "id" : "Section.code",
            "path" : "Section.code",
            "short" : "Additional Documentation Section",
            "min" : 1
          },
          {
            "id" : "Section.code.code",
            "path" : "Section.code.code",
            "min" : 1,
            "patternCode" : "77599-9"
          },
          {
            "id" : "Section.code.codeSystem",
            "path" : "Section.code.codeSystem",
            "min" : 1,
            "patternString" : "2.16.840.1.113883.6.1"
          },
          {
            "id" : "Section.code.codeSystemName",
            "path" : "Section.code.codeSystemName",
            "patternString" : "LOINC"
          },
          {
            "id" : "Section.title",
            "path" : "Section.title",
            "short" : "Additional Documentation",
            "min" : 1
          },
          {
            "id" : "Section.text",
            "path" : "Section.text",
            "short" : "Rendering of information about additional relevant documents"
          },
          {
            "id" : "Section.entry",
            "path" : "Section.entry",
            "slicing" : {
              "discriminator" : [
                {
                  "type" : "profile",
                  "path" : "observation"
                }
              ],
              "rules" : "open"
            },
            "comment" : "SHALL contain at least one [1..*] entry.",
            "min" : 1
          },
          {
            "id" : "Section.entry:advanceDirectiveExists",
            "path" : "Section.entry",
            "sliceName" : "advanceDirectiveExists",
            "min" : 1,
            "max" : "*",
            "mustSupport" : true
          },
          {
            "id" : "Section.entry:advanceDirectiveExists.observation",
            "path" : "Section.entry.observation",
            "min" : 1,
            "type" : [
              {
                "code" : "http://hl7.org/cda/stds/core/StructureDefinition/Observation",
                "profile" : [
                  🔗 "http://hl7.org/cda/us/ccda/StructureDefinition/AdvanceDirectiveExistenceObservation"
                ]
              }
            ],
            "mustSupport" : true
          }
        ]
      }
    }