Specialty Eyecare CDA Implementation Guide
0.1.0 - ci-build

Specialty Eyecare CDA Implementation Guide, published by Dogwood Health Consulting. 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-eyecare/ and changes regularly. See the Directory of published versions

Logical Model: DiagnosticAssessmentEyeTestObservation - XML Profile

Draft as of 2024-02-07

XML representation of the DiagnosticAssessmentEyeTestObservation logical model.

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<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="DiagnosticAssessmentEyeTestObservation"/>
  <text>
    <status value="extensions"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><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 : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" 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 : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" 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 : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the the element can appear in the instance">Card.</a></th><th style="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 : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" 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,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3goXBCwdPqAP0wAAAldJREFUOMuNk0tIlFEYhp9z/vE2jHkhxXA0zJCMitrUQlq4lnSltEqCFhFG2MJFhIvIFpkEWaTQqjaWZRkp0g26URZkTpbaaOJkDqk10szoODP//7XIMUe0elcfnPd9zsfLOYplGrpRwZaqTtw3K7PtGem7Q6FoidbGgqHVy/HRb669R+56zx7eRV1L31JGxYbBtjKK93cxeqfyQHbehkZbUkK20goELEuIzEd+dHS+qz/Y8PTSif0FnGkbiwcAjHaU1+QWOptFiyCLp/LnKptpqIuXHx6rbR26kJcBX3yLgBfnd7CxwJmflpP2wUg0HIAoUUpZBmKzELGWcN8nAr6Gpu7tLU/CkwAaoKTWRSQyt89Q8w6J+oVQkKnBoblH7V0PPvUOvDYXfopE/SJmALsxnVm6LbkotrUtNowMeIrVrBcBpaMmdS0j9df7abpSuy7HWehwJdt1lhVwi/J58U5beXGAF6c3UXLycw1wdFklArBn87xdh0ZsZtArghBdAA3+OEDVubG4UEzP6x1FOWneHh2VDAHBAt80IbdXDcesNoCvs3E5AFyNSU5nbrDPZpcUEQQTFZiEVx+51fxMhhyJEAgvlriadIJZZksRuwBYMOPBbO3hePVVqgEJhFeUuFLhIPkRP6BQLIBrmMenujm/3g4zc398awIe90Zb5A1vREALqneMcYgP/xVQWlG+Ncu5vgwwlaUNx+3799rfe96u9K0JSDXcOzOTJg4B6IgmXfsygc7/Bvg9g9E58/cDVmGIBOP/zT8Bz1zqWqpbXIsd0O9hajXfL6u4BaOS6SeWAAAAAElFTkSuQmCC" 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 : 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-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation">Observation</a><a name="Observation"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : 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 : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">ResultObservation</a></td><td style="vertical-align: top; text-align : 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/>Elements defined in Ancestors: <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-ANY.html" title="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.">@nullFlavor</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-InfrastructureRoot.html" title="When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question">realmCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-InfrastructureRoot.html" title="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.">typeId</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-InfrastructureRoot.html" title="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">templateId</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">@classCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">@moodCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">@negationInd</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">id</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">code</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">derivationExpr</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">text</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">statusCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">effectiveTime</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">priorityCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">repeatNumber</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">languageCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">value</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">interpretationCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">methodCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html" title="Drawn from concept domain ActSite">targetSiteCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">subject</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">specimen</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">performer</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">author</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">informant</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">participant</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">entryRelationship</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">reference</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">precondition</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">sdtcPrecondition2</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html" title="Relates an Observation to the ObservationRange class, where the expected range of values for a particular observation can be specified.">referenceRange</a>, <a href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-Observation.html">sdtcInFulfillmentOf1</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">templateId</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">templateId</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">classCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">moodCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">id</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">code</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">text</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">statusCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">effectiveTime</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">value</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">value</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">value</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">interpretationCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">methodCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">targetSiteCode</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">author</a>, <a href="https://build.fhir.org/ig/HL7/CDA-ccda//StructureDefinition-ResultObservation.html">referenceRange</a><br/><span style="opacity: 0.5">Base for all types and resources</span><br/><span style="font-weight:bold">Instances 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="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-ClinicalDocument.html">ClinicalDocument (CDA Class)</a></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : 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-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation.code">code</a><a name="Observation.code"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : 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-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation.code.code">@code</a><a name="Observation.code.code"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-cs-simple.html" title="code">cs</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="font-weight:bold">Binding: </span><a href="ValueSet-DiagnosticAssessmentEyeTestCodes.html" title="http://hl7.org/cda/us/eyecare/ValueSet/DiagnosticAssessmentEyeTestCodes">Diagnostic Assessment Eye Test Value Set</a> (<a href="http://hl7.org/fhir/R5/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set.">required</a>)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck14.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_slice_item.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Slice Item" class="hierarchy"/> <a href="StructureDefinition-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation.value:physical-quantity" title="Slice physical-quantity">value:physical-quantity</a><a name="Observation.value"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : 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 : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-PQ.html">PQ</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck14.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_slice_item.png" alt="." style="background-color: white; background-color: inherit" title="Slice Item" class="hierarchy"/> <span style="text-decoration:line-through" title="Slice coded">value:coded</span><a name="Observation.value"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="text-decoration:line-through"/><span style="text-decoration:line-through">0</span><span style="text-decoration:line-through">..</span><span style="text-decoration:line-through">0</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : 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-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation.methodCode">methodCode</a><a name="Observation.methodCode"> </a></td><td style="vertical-align: top; text-align : 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: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : 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 : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-CE.html">CE</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : 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-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation.methodCode.code">@code</a><a name="Observation.methodCode.code"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-cs-simple.html" title="code">cs</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="font-weight:bold">Binding: </span><a href="ValueSet-DryEyeQuestionnaireCodes.html" title="http://hl7.org/cda/us/eyecare/ValueSet/DryEyeQuestionnaireCodes">Dry Eye Questionnaire Value Set</a> (<a href="http://hl7.org/fhir/R5/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set.">required</a>)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck01.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation.targetSiteCode">targetSiteCode</a><a name="Observation.targetSiteCode"> </a></td><td style="vertical-align: top; text-align : 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: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : 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 : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-CD.html">CD</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck000.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.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-DiagnosticAssessmentEyeTestObservation-definitions.html#Observation.targetSiteCode.code">@code</a><a name="Observation.targetSiteCode.code"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="https://build.fhir.org/ig/HL7/CDA-core-sd//StructureDefinition-cs-simple.html" title="code">cs</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="font-weight:bold">Binding: </span><a href="ValueSet-EyecareTargetSiteCodes.html" title="http://hl7.org/cda/us/eyecare/ValueSet/EyecareTargetSiteCodes">Eyecare Target Site Codes</a> (<a href="http://hl7.org/fhir/R5/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set.">required</a>)</td></tr>
<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,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
  </text>
  <extension
             url="http://hl7.org/fhir/tools/StructureDefinition/logical-target">
    <valueBoolean>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/data-absent-reason">
        <valueCode value="not-applicable"/>
      </extension>
    </valueBoolean>
  </extension>
  <extension
             url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
    <valueUri value="urn:hl7-org:v3"/>
  </extension>
  <extension url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
    <valueString value="observation"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/tools/StructureDefinition/logical-container">
    <valueUri
              value="http://hl7.org/cda/stds/core/StructureDefinition/ClinicalDocument"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/tools/StructureDefinition/type-profile-style">
    <valueUri value="cda"/>
  </extension>
  <url
       value="http://hl7.org/cda/us/eyecare/StructureDefinition/DiagnosticAssessmentEyeTestObservation"/>
  <version value="0.1.0"/>
  <name value="DiagnosticAssessmentEyeTestObservation"/>
  <status value="draft"/>
  <date value="2024-02-07T21:17:12+00:00"/>
  <publisher value="Dogwood Health Consulting"/>
  <contact>
    <name value="Dogwood Health Consulting"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/ph/index.cfm"/>
    </telecom>
  </contact>
  <description
               value="A constraint on ResultObservation that defines eye diagnostic assessments."/>
  <fhirVersion value="5.0.0"/>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM Mapping"/>
  </mapping>
  <kind value="logical"/>
  <abstract value="false"/>
  <type value="http://hl7.org/cda/stds/core/StructureDefinition/Observation"/>
  <baseDefinition
                  value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
  <derivation value="constraint"/>
  <snapshot>
    <element id="Observation">
      <path value="Observation"/>
      <short value="Base for all types and resources"/>
      <definition
                  value="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 value="1"/>
      <max value="1"/>
      <base>
        <path value="Base"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <constraint>
        <key value="should-text-ref-value"/>
        <severity value="warning"/>
        <human value="SHOULD contain text/reference/@value"/>
        <expression value="text.reference.value.exists()"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
      <constraint>
        <key value="should-interpretationCode"/>
        <severity value="warning"/>
        <human value="SHOULD contain interpretationCode"/>
        <expression value="interpretationCode.exists()"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
      <constraint>
        <key value="should-author"/>
        <severity value="warning"/>
        <human value="SHOULD contain author"/>
        <expression value="author.exists()"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
      <constraint>
        <key value="should-referenceRange"/>
        <severity value="warning"/>
        <human value="SHOULD contain referenceRange"/>
        <expression value="referenceRange.exists()"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
      <isModifier value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.nullFlavor">
      <path value="Observation.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.realmCode">
      <path value="Observation.realmCode"/>
      <definition
                  value="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 value="0"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.realmCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CS"/>
      </type>
    </element>
    <element id="Observation.typeId">
      <path value="Observation.typeId"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="InfrastructureRoot.typeId"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.typeId.nullFlavor">
      <path value="Observation.typeId.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.typeId.assigningAuthorityName">
      <path value="Observation.typeId.assigningAuthorityName"/>
      <representation value="xmlAttr"/>
      <label value="Assigning Authority Name"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="II.assigningAuthorityName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.typeId.displayable">
      <path value="Observation.typeId.displayable"/>
      <representation value="xmlAttr"/>
      <label value="Displayable"/>
      <definition
                  value="Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="II.displayable"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"/>
      </type>
    </element>
    <element id="Observation.typeId.root">
      <path value="Observation.typeId.root"/>
      <representation value="xmlAttr"/>
      <label value="Root"/>
      <definition value="Identifies the type as an HL7 Registered model"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.root"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
      <fixedString value="2.16.840.1.113883.1.3"/>
    </element>
    <element id="Observation.typeId.extension">
      <path value="Observation.typeId.extension"/>
      <representation value="xmlAttr"/>
      <label value="Extension"/>
      <definition
                  value="A character string as a unique identifier within the scope of the identifier root."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.extension"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.templateId">
      <path value="Observation.templateId"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="root"/>
        </discriminator>
        <discriminator>
          <type value="value"/>
          <path value="extension"/>
        </discriminator>
        <rules value="open"/>
      </slicing>
      <definition
                  value="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 value="1"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.templateId"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.templateId:result-obs">
      <path value="Observation.templateId"/>
      <sliceName value="result-obs"/>
      <definition
                  value="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 value="1"/>
      <max value="1"/>
      <base>
        <path value="InfrastructureRoot.templateId"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.templateId:result-obs.nullFlavor">
      <path value="Observation.templateId.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.templateId:result-obs.assigningAuthorityName">
      <path value="Observation.templateId.assigningAuthorityName"/>
      <representation value="xmlAttr"/>
      <label value="Assigning Authority Name"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="II.assigningAuthorityName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.templateId:result-obs.displayable">
      <path value="Observation.templateId.displayable"/>
      <representation value="xmlAttr"/>
      <label value="Displayable"/>
      <definition
                  value="Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="II.displayable"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"/>
      </type>
    </element>
    <element id="Observation.templateId:result-obs.root">
      <path value="Observation.templateId.root"/>
      <representation value="xmlAttr"/>
      <label value="Root"/>
      <definition
                  value="A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.root"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
      <patternString value="2.16.840.1.113883.10.20.22.4.2"/>
    </element>
    <element id="Observation.templateId:result-obs.extension">
      <path value="Observation.templateId.extension"/>
      <representation value="xmlAttr"/>
      <label value="Extension"/>
      <definition
                  value="A character string as a unique identifier within the scope of the identifier root."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.extension"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
      <patternString value="2023-05-01"/>
    </element>
    <element id="Observation.classCode">
      <path value="Observation.classCode"/>
      <representation value="xmlAttr"/>
      <comment
               value="SHALL contain exactly one [1..1] @classCode=&quot;OBS&quot; Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:4537-7130)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.classCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <fixedCode value="OBS"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ActClassObservation|2.0.0"/>
      </binding>
    </element>
    <element id="Observation.moodCode">
      <path value="Observation.moodCode"/>
      <representation value="xmlAttr"/>
      <comment
               value="SHALL contain exactly one [1..1] @moodCode=&quot;EVN&quot; Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:4537-7131)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.moodCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <fixedCode value="EVN"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-xActMoodDocumentObservation|2.0.0"/>
      </binding>
    </element>
    <element id="Observation.negationInd">
      <path value="Observation.negationInd"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.negationInd"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"/>
      </type>
    </element>
    <element id="Observation.id">
      <path value="Observation.id"/>
      <comment
               value="SHALL contain at least one [1..*] id (CONF:4537-7137)."/>
      <min value="1"/>
      <max value="*"/>
      <base>
        <path value="Observation.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.code">
      <extension
                 url="http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement">
        <valueBoolean value="true"/>
      </extension>
      <path value="Observation.code"/>
      <representation value="typeAttr"/>
      <short value="(USCDI) Tests"/>
      <comment
               value="SHALL contain exactly one [1..1] code, which SHOULD be selected from CodeSystem LOINC (urn:oid:2.16.840.1.113883.6.1) (CONF:4537-7133)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.code"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
      <constraint>
        <key value="shall-code-or-nullflavor"/>
        <severity value="error"/>
        <human
               value="SHALL contain either a @code attribute or a @nullFlavor attribute, but not both."/>
        <expression value="(code | nullFlavor).count() = 1"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
      <constraint>
        <key value="4537-19212"/>
        <severity value="warning"/>
        <human
               value="This code **SHOULD** be a code from the LOINC that identifies the result observation. If an appropriate LOINC code does not exist, then the local code for this result **SHALL** be sent (CONF:4537-19212)."/>
        <expression value="codeSystem = '2.16.840.1.113883.6.1'"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
      <binding>
        <strength value="example"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ObservationType"/>
      </binding>
    </element>
    <element id="Observation.code.nullFlavor">
      <path value="Observation.code.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <comment value="Either code or nullFlavor MUST be present"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.code.code">
      <path value="Observation.code.code"/>
      <representation value="xmlAttr"/>
      <label value="Code"/>
      <definition
                  value="The plain code symbol defined by the code system. For example, &quot;784.0&quot; is the code symbol of the ICD-9 code &quot;784.0&quot; for headache."/>
      <comment value="Either code or nullFlavor MUST be present"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/us/eyecare/ValueSet/DiagnosticAssessmentEyeTestCodes"/>
      </binding>
    </element>
    <element id="Observation.code.codeSystem">
      <path value="Observation.code.codeSystem"/>
      <representation value="xmlAttr"/>
      <label value="Code System"/>
      <definition value="Specifies the code system that defines the code."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystem"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
    </element>
    <element id="Observation.code.codeSystemName">
      <path value="Observation.code.codeSystemName"/>
      <representation value="xmlAttr"/>
      <label value="Code System Name"/>
      <definition value="The common name of the coding system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.code.codeSystemVersion">
      <path value="Observation.code.codeSystemVersion"/>
      <representation value="xmlAttr"/>
      <label value="Code System Version"/>
      <definition
                  value="If applicable, a version descriptor defined specifically for the given code system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.code.displayName">
      <path value="Observation.code.displayName"/>
      <representation value="xmlAttr"/>
      <label value="Display Name"/>
      <definition
                  value="A name or title for the code, under which the sending system shows the code value to its users."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.displayName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.code.sdtcValueSet">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSet"/>
      </extension>
      <path value="Observation.code.sdtcValueSet"/>
      <representation value="xmlAttr"/>
      <definition
                  value="The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.valueSet"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
      </type>
    </element>
    <element id="Observation.code.sdtcValueSetVersion">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSetVersion"/>
      </extension>
      <path value="Observation.code.sdtcValueSetVersion"/>
      <representation value="xmlAttr"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.sdtcValueSetVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.code.originalText">
      <path value="Observation.code.originalText"/>
      <label value="Original Text"/>
      <definition
                  value="The text or phrase used as the basis for the coding."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.originalText"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.code.qualifier">
      <path value="Observation.code.qualifier"/>
      <label value="Qualifier"/>
      <definition
                  value="Specifies additional codes that increase the specificity of the the primary code."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="CD.qualifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CR"/>
      </type>
    </element>
    <element id="Observation.code.translation">
      <path value="Observation.code.translation"/>
      <representation value="typeAttr"/>
      <label value="Translation"/>
      <definition
                  value="A set of other concept descriptors that translate this concept descriptor into other code systems."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="CD.translation"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
    </element>
    <element id="Observation.derivationExpr">
      <path value="Observation.derivationExpr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.derivationExpr"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ST"/>
      </type>
    </element>
    <element id="Observation.text">
      <path value="Observation.text"/>
      <representation value="typeAttr"/>
      <short
             value="SHOULD reference the portion of section narrative text corresponding to this entry"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.text.nullFlavor">
      <path value="Observation.text.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.text.compression">
      <path value="Observation.text.compression"/>
      <representation value="xmlAttr"/>
      <label value="Compression"/>
      <definition
                  value="Indicates whether the raw byte data is compressed, and what compression algorithm was used."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.compression"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm"/>
      </binding>
    </element>
    <element id="Observation.text.integrityCheck">
      <path value="Observation.text.integrityCheck"/>
      <representation value="xmlAttr"/>
      <label value="Integrity Check"/>
      <definition
                  value="The integrity check is a short binary value representing a cryptographically strong checksum that is calculated over the binary data. The purpose of this property, when communicated with a reference is for anyone to validate later whether the reference still resolved to the same data that the reference resolved to when the encapsulated data value with reference was created."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.integrityCheck"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="base64Binary"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/bin"/>
      </type>
    </element>
    <element id="Observation.text.integrityCheckAlgorithm">
      <path value="Observation.text.integrityCheckAlgorithm"/>
      <representation value="xmlAttr"/>
      <label value="Integrity Check Algorithm"/>
      <definition
                  value="Specifies the algorithm used to compute the integrityCheck value. The cryptographically strong checksum algorithm Secure Hash Algorithm-1 (SHA-1) is currently the industry standard. It has superseded the MD5 algorithm only a couple of years ago, when certain flaws in the security of MD5 were discovered. Currently the SHA-1 hash algorithm is the default choice for the integrity check algorithm. Note that SHA-256 is also entering widespread usage."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.integrityCheckAlgorithm"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0"/>
      </binding>
    </element>
    <element id="Observation.text.language">
      <path value="Observation.text.language"/>
      <representation value="xmlAttr"/>
      <label value="Language"/>
      <definition
                  value="For character based information the language property specifies the human language of the text."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.language"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
    </element>
    <element id="Observation.text.mediaType">
      <path value="Observation.text.mediaType"/>
      <representation value="xmlAttr"/>
      <label value="Media Type"/>
      <definition
                  value="Identifies the type of the encapsulated data and identifies a method to interpret or render the data."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.mediaType"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="example"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-MediaType"/>
      </binding>
    </element>
    <element id="Observation.text.representation">
      <path value="Observation.text.representation"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.representation"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding"/>
      </binding>
    </element>
    <element id="Observation.text.xmlText">
      <path value="Observation.text.xmlText"/>
      <representation value="xmlText"/>
      <short
             value="Allows for mixed text content. If @representation='B64', this SHALL be a base64binary string."/>
      <definition
                  value="Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.)"/>
      <comment
               value="This element is represented in XML as textual content. The actual name &quot;xmlText&quot; will not appear in a CDA instance."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.xmlText"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.text.reference">
      <path value="Observation.text.reference"/>
      <label value="Reference"/>
      <definition
                  value="A telecommunication address (TEL), such as a URL for HTTP or FTP, which will resolve to precisely the same binary data that could as well have been provided as inline data."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.reference"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/TEL"/>
      </type>
      <constraint>
        <key value="value-starts-octothorpe"/>
        <severity value="error"/>
        <human
               value="If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative"/>
        <expression value="value.exists() implies value.startsWith('#')"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
    </element>
    <element id="Observation.text.thumbnail">
      <path value="Observation.text.thumbnail"/>
      <label value="Thumbnail"/>
      <definition
                  value="An abbreviated rendition of the full data. A thumbnail requires significantly fewer resources than the full data, while still maintaining some distinctive similarity with the full data. A thumbnail is typically used with by-reference encapsulated data. It allows a user to select data more efficiently before actually downloading through the reference."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ED.thumbnail"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.statusCode">
      <path value="Observation.statusCode"/>
      <comment
               value="SHALL contain exactly one [1..1] statusCode (CONF:4537-7134)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.statusCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CS"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-ActStatus"/>
      </binding>
    </element>
    <element id="Observation.statusCode.nullFlavor">
      <path value="Observation.statusCode.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.statusCode.code">
      <path value="Observation.statusCode.code"/>
      <representation value="xmlAttr"/>
      <label value="Code"/>
      <definition
                  value="The plain code symbol defined by the code system. For example, &quot;784.0&quot; is the code symbol of the ICD-9 code &quot;784.0&quot; for headache."/>
      <comment
               value="This statusCode SHALL contain exactly one [1..1] @code, which SHALL be selected from ValueSet Result Status urn:oid:2.16.840.1.113883.11.20.9.39 STATIC (CONF:4537-14849)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="CD.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.11.20.9.39"/>
      </binding>
    </element>
    <element id="Observation.statusCode.codeSystem">
      <path value="Observation.statusCode.codeSystem"/>
      <representation value="xmlAttr"/>
      <label value="Code System"/>
      <definition value="Specifies the code system that defines the code."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.codeSystem"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
    </element>
    <element id="Observation.statusCode.codeSystemName">
      <path value="Observation.statusCode.codeSystemName"/>
      <representation value="xmlAttr"/>
      <label value="Code System Name"/>
      <definition value="The common name of the coding system."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.codeSystemName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.statusCode.codeSystemVersion">
      <path value="Observation.statusCode.codeSystemVersion"/>
      <representation value="xmlAttr"/>
      <label value="Code System Version"/>
      <definition
                  value="If applicable, a version descriptor defined specifically for the given code system."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.codeSystemVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.statusCode.displayName">
      <path value="Observation.statusCode.displayName"/>
      <representation value="xmlAttr"/>
      <label value="Display Name"/>
      <definition
                  value="A name or title for the code, under which the sending system shows the code value to its users."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.displayName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.statusCode.sdtcValueSet">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSet"/>
      </extension>
      <path value="Observation.statusCode.sdtcValueSet"/>
      <representation value="xmlAttr"/>
      <definition
                  value="The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.valueSet"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
      </type>
    </element>
    <element id="Observation.statusCode.sdtcValueSetVersion">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSetVersion"/>
      </extension>
      <path value="Observation.statusCode.sdtcValueSetVersion"/>
      <representation value="xmlAttr"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.sdtcValueSetVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.statusCode.originalText">
      <path value="Observation.statusCode.originalText"/>
      <label value="Original Text"/>
      <definition
                  value="The text or phrase used as the basis for the coding."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.originalText"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.statusCode.qualifier">
      <path value="Observation.statusCode.qualifier"/>
      <label value="Qualifier"/>
      <definition
                  value="Specifies additional codes that increase the specificity of the the primary code."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.qualifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CR"/>
      </type>
    </element>
    <element id="Observation.statusCode.translation">
      <path value="Observation.statusCode.translation"/>
      <representation value="typeAttr"/>
      <label value="Translation"/>
      <definition
                  value="A set of other concept descriptors that translate this concept descriptor into other code systems."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.translation"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
    </element>
    <element id="Observation.effectiveTime">
      <path value="Observation.effectiveTime"/>
      <short
             value="Represents the clinically relevant time of the measurement (e.g., the time a blood pressure reading is obtained, the time the blood sample was obtained for a chemistry test)."/>
      <comment
               value="SHALL contain exactly one [1..1] effectiveTime (CONF:4537-7140)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.effectiveTime"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS"/>
      </type>
    </element>
    <element id="Observation.priorityCode">
      <path value="Observation.priorityCode"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.priorityCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CE"/>
      </type>
      <binding>
        <strength value="example"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-ActPriority"/>
      </binding>
    </element>
    <element id="Observation.repeatNumber">
      <path value="Observation.repeatNumber"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.repeatNumber"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/IVL-INT"/>
      </type>
    </element>
    <element id="Observation.languageCode">
      <path value="Observation.languageCode"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.languageCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CS"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet value="http://hl7.org/fhir/ValueSet/all-languages"/>
      </binding>
    </element>
    <element id="Observation.value">
      <extension
                 url="http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement">
        <valueBoolean value="true"/>
      </extension>
      <path value="Observation.value"/>
      <representation value="typeAttr"/>
      <slicing>
        <discriminator>
          <type value="type"/>
          <path value="$this"/>
        </discriminator>
        <rules value="open"/>
      </slicing>
      <short
             value="(USCDI) Values/Results - Value can be any type, but certain types have additional rules."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.value"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ANY"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/BL"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ST"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CV"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CE"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CO"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/SC"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/TEL"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/AD"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/EN"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/INT"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/REAL"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/PQ"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/MO"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/EIVL-TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/SXPR-TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/RTO-PQ-PQ"/>
      </type>
    </element>
    <element id="Observation.value:physical-quantity">
      <path value="Observation.value"/>
      <representation value="typeAttr"/>
      <sliceName value="physical-quantity"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.value"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/PQ"/>
      </type>
    </element>
    <element id="Observation.value:physical-quantity.nullFlavor">
      <path value="Observation.value.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.value:physical-quantity.unit">
      <extension
                 url="http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement">
        <valueBoolean value="true"/>
      </extension>
      <path value="Observation.value.unit"/>
      <representation value="xmlAttr"/>
      <label value="Unit of Measure"/>
      <short value="(USCDI) Result Unit of Measure"/>
      <definition
                  value="The unit of measure specified in the Unified Code for Units of Measure (UCUM) []."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="PQ.unit"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <defaultValueCode value="1"/>
      <binding>
        <strength value="preferred"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-UnitsOfMeasureCaseSensitive"/>
      </binding>
    </element>
    <element id="Observation.value:physical-quantity.value">
      <path value="Observation.value.value"/>
      <representation value="xmlAttr"/>
      <label value="Maginitude Value"/>
      <definition
                  value="The magnitude of the quantity measured in terms of the unit."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="PQ.value"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/real-simple"/>
      </type>
    </element>
    <element id="Observation.value:physical-quantity.translation">
      <path value="Observation.value.translation"/>
      <label value="Translation"/>
      <short
             value="Can be used to represent the original results as output by the lab"/>
      <definition
                  value="An alternative representation of the same physical quantity expressed in a different unit, of a different unit code system and possibly with a different value."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="PQ.translation"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/PQR"/>
      </type>
    </element>
    <element id="Observation.value:coded">
      <path value="Observation.value"/>
      <representation value="typeAttr"/>
      <sliceName value="coded"/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Observation.value"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
      <constraint>
        <key value="4537-32610"/>
        <severity value="warning"/>
        <human
               value="If Observation/value is a CD (**xsi:type=&quot;CD&quot;**) the value **SHOULD** be SNOMED-CT or LOINC (CONF:4537-32610)."/>
        <expression
                    value="codeSystem = '2.16.840.1.113883.6.96' or codeSystem = '2.16.840.1.113883.6.1'"/>
        <source
                value="http://hl7.org/cda/us/ccda/StructureDefinition/ResultObservation"/>
      </constraint>
    </element>
    <element id="Observation.value:coded.nullFlavor">
      <path value="Observation.value.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.value:coded.code">
      <path value="Observation.value.code"/>
      <representation value="xmlAttr"/>
      <label value="Code"/>
      <definition
                  value="The plain code symbol defined by the code system. For example, &quot;784.0&quot; is the code symbol of the ICD-9 code &quot;784.0&quot; for headache."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
    </element>
    <element id="Observation.value:coded.codeSystem">
      <path value="Observation.value.codeSystem"/>
      <representation value="xmlAttr"/>
      <label value="Code System"/>
      <definition value="Specifies the code system that defines the code."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystem"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
    </element>
    <element id="Observation.value:coded.codeSystemName">
      <path value="Observation.value.codeSystemName"/>
      <representation value="xmlAttr"/>
      <label value="Code System Name"/>
      <definition value="The common name of the coding system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.value:coded.codeSystemVersion">
      <path value="Observation.value.codeSystemVersion"/>
      <representation value="xmlAttr"/>
      <label value="Code System Version"/>
      <definition
                  value="If applicable, a version descriptor defined specifically for the given code system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.value:coded.displayName">
      <path value="Observation.value.displayName"/>
      <representation value="xmlAttr"/>
      <label value="Display Name"/>
      <definition
                  value="A name or title for the code, under which the sending system shows the code value to its users."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.displayName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.value:coded.sdtcValueSet">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSet"/>
      </extension>
      <path value="Observation.value.sdtcValueSet"/>
      <representation value="xmlAttr"/>
      <definition
                  value="The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.valueSet"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
      </type>
    </element>
    <element id="Observation.value:coded.sdtcValueSetVersion">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSetVersion"/>
      </extension>
      <path value="Observation.value.sdtcValueSetVersion"/>
      <representation value="xmlAttr"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.sdtcValueSetVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.value:coded.originalText">
      <path value="Observation.value.originalText"/>
      <label value="Original Text"/>
      <definition
                  value="The text or phrase used as the basis for the coding."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.originalText"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.value:coded.qualifier">
      <path value="Observation.value.qualifier"/>
      <label value="Qualifier"/>
      <definition
                  value="Specifies additional codes that increase the specificity of the the primary code."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="CD.qualifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CR"/>
      </type>
    </element>
    <element id="Observation.value:coded.translation">
      <path value="Observation.value.translation"/>
      <representation value="typeAttr"/>
      <label value="Translation"/>
      <short
             value="Can be used to represent the original results as output by the lab"/>
      <definition
                  value="A set of other concept descriptors that translate this concept descriptor into other code systems."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.translation"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
    </element>
    <element id="Observation.interpretationCode">
      <extension
                 url="http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement">
        <valueBoolean value="true"/>
      </extension>
      <path value="Observation.interpretationCode"/>
      <short value="(USCDI) Result Interpretation"/>
      <comment
               value="SHOULD contain zero or more [0..*] interpretationCode, which SHALL be selected from ValueSet Observation Interpretation (HL7) urn:oid:2.16.840.1.113883.1.11.78 DYNAMIC (CONF:4537-7147)."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.interpretationCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CE"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ObservationInterpretation"/>
      </binding>
    </element>
    <element id="Observation.methodCode">
      <path value="Observation.methodCode"/>
      <comment
               value="MAY contain zero or one [0..1] methodCode (CONF:4537-7148)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.methodCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CE"/>
      </type>
      <mustSupport value="true"/>
      <binding>
        <strength value="example"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ObservationMethod"/>
      </binding>
    </element>
    <element id="Observation.methodCode.nullFlavor">
      <path value="Observation.methodCode.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.methodCode.code">
      <path value="Observation.methodCode.code"/>
      <representation value="xmlAttr"/>
      <label value="Code"/>
      <definition
                  value="The plain code symbol defined by the code system. For example, &quot;784.0&quot; is the code symbol of the ICD-9 code &quot;784.0&quot; for headache."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/us/eyecare/ValueSet/DryEyeQuestionnaireCodes"/>
      </binding>
    </element>
    <element id="Observation.methodCode.codeSystem">
      <path value="Observation.methodCode.codeSystem"/>
      <representation value="xmlAttr"/>
      <label value="Code System"/>
      <definition value="Specifies the code system that defines the code."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystem"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
    </element>
    <element id="Observation.methodCode.codeSystemName">
      <path value="Observation.methodCode.codeSystemName"/>
      <representation value="xmlAttr"/>
      <label value="Code System Name"/>
      <definition value="The common name of the coding system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.methodCode.codeSystemVersion">
      <path value="Observation.methodCode.codeSystemVersion"/>
      <representation value="xmlAttr"/>
      <label value="Code System Version"/>
      <definition
                  value="If applicable, a version descriptor defined specifically for the given code system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.methodCode.displayName">
      <path value="Observation.methodCode.displayName"/>
      <representation value="xmlAttr"/>
      <label value="Display Name"/>
      <definition
                  value="A name or title for the code, under which the sending system shows the code value to its users."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.displayName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.methodCode.sdtcValueSet">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSet"/>
      </extension>
      <path value="Observation.methodCode.sdtcValueSet"/>
      <representation value="xmlAttr"/>
      <definition
                  value="The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.valueSet"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
      </type>
    </element>
    <element id="Observation.methodCode.sdtcValueSetVersion">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSetVersion"/>
      </extension>
      <path value="Observation.methodCode.sdtcValueSetVersion"/>
      <representation value="xmlAttr"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.sdtcValueSetVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.methodCode.originalText">
      <path value="Observation.methodCode.originalText"/>
      <label value="Original Text"/>
      <definition
                  value="The text or phrase used as the basis for the coding."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.originalText"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.methodCode.qualifier">
      <path value="Observation.methodCode.qualifier"/>
      <label value="Qualifier"/>
      <definition
                  value="Specifies additional codes that increase the specificity of the the primary code."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="CD.qualifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CR"/>
      </type>
    </element>
    <element id="Observation.methodCode.translation">
      <path value="Observation.methodCode.translation"/>
      <representation value="typeAttr"/>
      <label value="Translation"/>
      <definition
                  value="A set of other concept descriptors that translate this concept descriptor into other code systems."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="CD.translation"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode">
      <path value="Observation.targetSiteCode"/>
      <definition value="Drawn from concept domain ActSite"/>
      <comment
               value="MAY contain zero or one [0..1] targetSiteCode (CONF:4537-7153)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.targetSiteCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element id="Observation.targetSiteCode.nullFlavor">
      <path value="Observation.targetSiteCode.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.targetSiteCode.code">
      <path value="Observation.targetSiteCode.code"/>
      <representation value="xmlAttr"/>
      <label value="Code"/>
      <definition
                  value="The plain code symbol defined by the code system. For example, &quot;784.0&quot; is the code symbol of the ICD-9 code &quot;784.0&quot; for headache."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/us/eyecare/ValueSet/EyecareTargetSiteCodes"/>
      </binding>
    </element>
    <element id="Observation.targetSiteCode.codeSystem">
      <path value="Observation.targetSiteCode.codeSystem"/>
      <representation value="xmlAttr"/>
      <label value="Code System"/>
      <definition value="Specifies the code system that defines the code."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystem"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.codeSystemName">
      <path value="Observation.targetSiteCode.codeSystemName"/>
      <representation value="xmlAttr"/>
      <label value="Code System Name"/>
      <definition value="The common name of the coding system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.codeSystemVersion">
      <path value="Observation.targetSiteCode.codeSystemVersion"/>
      <representation value="xmlAttr"/>
      <label value="Code System Version"/>
      <definition
                  value="If applicable, a version descriptor defined specifically for the given code system."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.codeSystemVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.displayName">
      <path value="Observation.targetSiteCode.displayName"/>
      <representation value="xmlAttr"/>
      <label value="Display Name"/>
      <definition
                  value="A name or title for the code, under which the sending system shows the code value to its users."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.displayName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.sdtcValueSet">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSet"/>
      </extension>
      <path value="Observation.targetSiteCode.sdtcValueSet"/>
      <representation value="xmlAttr"/>
      <definition
                  value="The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.valueSet"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.sdtcValueSetVersion">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="valueSetVersion"/>
      </extension>
      <path value="Observation.targetSiteCode.sdtcValueSetVersion"/>
      <representation value="xmlAttr"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.sdtcValueSetVersion"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.originalText">
      <path value="Observation.targetSiteCode.originalText"/>
      <label value="Original Text"/>
      <definition
                  value="The text or phrase used as the basis for the coding."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="CD.originalText"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.qualifier">
      <path value="Observation.targetSiteCode.qualifier"/>
      <label value="Qualifier"/>
      <definition
                  value="Specifies additional codes that increase the specificity of the the primary code."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="CD.qualifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CR"/>
      </type>
    </element>
    <element id="Observation.targetSiteCode.translation">
      <path value="Observation.targetSiteCode.translation"/>
      <representation value="typeAttr"/>
      <label value="Translation"/>
      <definition
                  value="A set of other concept descriptors that translate this concept descriptor into other code systems."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="CD.translation"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.subject"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Subject"/>
      </type>
    </element>
    <element id="Observation.specimen">
      <path value="Observation.specimen"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.specimen"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Specimen"/>
      </type>
    </element>
    <element id="Observation.performer">
      <path value="Observation.performer"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.performer"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Performer2"/>
      </type>
    </element>
    <element id="Observation.author">
      <path value="Observation.author"/>
      <short value="Base for all types and resources"/>
      <definition
                  value="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."/>
      <comment
               value="SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:4537-7149)."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.author"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Author"/>
        <profile
                 value="http://hl7.org/cda/us/ccda/StructureDefinition/AuthorParticipation"/>
      </type>
      <isModifier value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Observation.informant">
      <path value="Observation.informant"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.informant"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Informant"/>
      </type>
    </element>
    <element id="Observation.participant">
      <path value="Observation.participant"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.participant"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Participant2"/>
      </type>
    </element>
    <element id="Observation.entryRelationship">
      <path value="Observation.entryRelationship"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.entryRelationship"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship"/>
      </type>
    </element>
    <element id="Observation.reference">
      <path value="Observation.reference"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.reference"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Reference"/>
      </type>
    </element>
    <element id="Observation.precondition">
      <path value="Observation.precondition"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.precondition"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Precondition"/>
      </type>
    </element>
    <element id="Observation.sdtcPrecondition2">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="precondition2"/>
      </extension>
      <path value="Observation.sdtcPrecondition2"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.sdtcPrecondition2"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Precondition2"/>
      </type>
    </element>
    <element id="Observation.referenceRange">
      <extension
                 url="http://hl7.org/fhir/us/core/StructureDefinition/uscdi-requirement">
        <valueBoolean value="true"/>
      </extension>
      <path value="Observation.referenceRange"/>
      <short value="(USCDI) Result Reference Range"/>
      <definition
                  value="Relates an Observation to the ObservationRange class, where the expected range of values for a particular observation can be specified."/>
      <comment
               value="SHOULD contain zero or more [0..*] referenceRange (CONF:4537-7150)."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.referenceRange"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot"/>
      </type>
    </element>
    <element id="Observation.referenceRange.nullFlavor">
      <path value="Observation.referenceRange.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.realmCode">
      <path value="Observation.referenceRange.realmCode"/>
      <definition
                  value="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 value="0"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.realmCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CS"/>
      </type>
    </element>
    <element id="Observation.referenceRange.typeId">
      <path value="Observation.referenceRange.typeId"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="InfrastructureRoot.typeId"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.referenceRange.typeId.nullFlavor">
      <path value="Observation.referenceRange.typeId.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.typeId.assigningAuthorityName">
      <path value="Observation.referenceRange.typeId.assigningAuthorityName"/>
      <representation value="xmlAttr"/>
      <label value="Assigning Authority Name"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="II.assigningAuthorityName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.referenceRange.typeId.displayable">
      <path value="Observation.referenceRange.typeId.displayable"/>
      <representation value="xmlAttr"/>
      <label value="Displayable"/>
      <definition
                  value="Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="II.displayable"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"/>
      </type>
    </element>
    <element id="Observation.referenceRange.typeId.root">
      <path value="Observation.referenceRange.typeId.root"/>
      <representation value="xmlAttr"/>
      <label value="Root"/>
      <definition value="Identifies the type as an HL7 Registered model"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.root"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
      <fixedString value="2.16.840.1.113883.1.3"/>
    </element>
    <element id="Observation.referenceRange.typeId.extension">
      <path value="Observation.referenceRange.typeId.extension"/>
      <representation value="xmlAttr"/>
      <label value="Extension"/>
      <definition
                  value="A character string as a unique identifier within the scope of the identifier root."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.extension"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.referenceRange.templateId">
      <path value="Observation.referenceRange.templateId"/>
      <definition
                  value="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 value="0"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.templateId"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.referenceRange.typeCode">
      <path value="Observation.referenceRange.typeCode"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Observation.referenceRange.typeCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <fixedCode value="REFV"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ActRelationshipType|2.0.0"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.observationRange">
      <path value="Observation.referenceRange.observationRange"/>
      <comment
               value="The referenceRange, if present, SHALL contain exactly one [1..1] observationRange (CONF:4537-7151)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Observation.referenceRange.observationRange"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/ObservationRange"/>
      </type>
    </element>
    <element id="Observation.referenceRange.observationRange.nullFlavor">
      <path value="Observation.referenceRange.observationRange.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.observationRange.realmCode">
      <path value="Observation.referenceRange.observationRange.realmCode"/>
      <definition
                  value="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 value="0"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.realmCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CS"/>
      </type>
    </element>
    <element id="Observation.referenceRange.observationRange.typeId">
      <path value="Observation.referenceRange.observationRange.typeId"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="InfrastructureRoot.typeId"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.typeId.nullFlavor">
      <path
            value="Observation.referenceRange.observationRange.typeId.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element
             id="Observation.referenceRange.observationRange.typeId.assigningAuthorityName">
      <path
            value="Observation.referenceRange.observationRange.typeId.assigningAuthorityName"/>
      <representation value="xmlAttr"/>
      <label value="Assigning Authority Name"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="II.assigningAuthorityName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.typeId.displayable">
      <path
            value="Observation.referenceRange.observationRange.typeId.displayable"/>
      <representation value="xmlAttr"/>
      <label value="Displayable"/>
      <definition
                  value="Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="II.displayable"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"/>
      </type>
    </element>
    <element id="Observation.referenceRange.observationRange.typeId.root">
      <path value="Observation.referenceRange.observationRange.typeId.root"/>
      <representation value="xmlAttr"/>
      <label value="Root"/>
      <definition value="Identifies the type as an HL7 Registered model"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.root"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
      <fixedString value="2.16.840.1.113883.1.3"/>
    </element>
    <element
             id="Observation.referenceRange.observationRange.typeId.extension">
      <path
            value="Observation.referenceRange.observationRange.typeId.extension"/>
      <representation value="xmlAttr"/>
      <label value="Extension"/>
      <definition
                  value="A character string as a unique identifier within the scope of the identifier root."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.extension"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element id="Observation.referenceRange.observationRange.templateId">
      <path value="Observation.referenceRange.observationRange.templateId"/>
      <definition
                  value="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 value="0"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.templateId"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element id="Observation.referenceRange.observationRange.classCode">
      <path value="Observation.referenceRange.observationRange.classCode"/>
      <representation value="xmlAttr"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.classCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <defaultValueCode value="OBS"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ActClassObservation"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.observationRange.moodCode">
      <path value="Observation.referenceRange.observationRange.moodCode"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.moodCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <fixedCode value="EVN.CRT"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ActMoodPredicate"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.observationRange.code">
      <path value="Observation.referenceRange.observationRange.code"/>
      <comment
               value="This observationRange SHALL NOT contain [0..0] code (CONF:4537-7152)."/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="ObservationRange.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
      <binding>
        <strength value="example"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/v3-ActCode"/>
      </binding>
    </element>
    <element id="Observation.referenceRange.observationRange.text">
      <path value="Observation.referenceRange.observationRange.text"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
    </element>
    <element id="Observation.referenceRange.observationRange.value">
      <path value="Observation.referenceRange.observationRange.value"/>
      <representation value="typeAttr"/>
      <comment
               value="This observationRange SHALL contain exactly one [1..1] value (CONF:4537-32175)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.value"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/BL"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ED"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/ST"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CD"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CV"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CE"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CO"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/SC"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/TEL"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/AD"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/EN"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/INT"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/REAL"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/PQ"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/MO"/>
      </type>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/EIVL-TS"/>
      </type>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/SXPR-TS"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.interpretationCode">
      <path
            value="Observation.referenceRange.observationRange.interpretationCode"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.interpretationCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CE"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ObservationInterpretation"/>
      </binding>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="precondition1"/>
      </extension>
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1"/>
      <definition
                  value="The sdtc:precondition1 extension allows for the association of a criterion with a reference range (ObservationRange), which allows the expression in a lab report that a reference range is conditional on some criterion such as patient sex or age (or a combination of criterion)."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="ObservationRange.sdtcPrecondition1"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.nullFlavor">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.realmCode">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.realmCode"/>
      <definition
                  value="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 value="0"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.realmCode"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CS"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="InfrastructureRoot.typeId"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.nullFlavor">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.nullFlavor"/>
      <representation value="xmlAttr"/>
      <label value="Exceptional Value Detail"/>
      <definition
                  value="If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ANY.nullFlavor"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"/>
      </binding>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.assigningAuthorityName">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.assigningAuthorityName"/>
      <representation value="xmlAttr"/>
      <label value="Assigning Authority Name"/>
      <definition
                  value="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 value="0"/>
      <max value="1"/>
      <base>
        <path value="II.assigningAuthorityName"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.displayable">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.displayable"/>
      <representation value="xmlAttr"/>
      <label value="Displayable"/>
      <definition
                  value="Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="II.displayable"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/bl-simple"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.root">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.root"/>
      <representation value="xmlAttr"/>
      <label value="Root"/>
      <definition value="Identifies the type as an HL7 Registered model"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.root"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/oid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/uuid"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/ruid"/>
      </type>
      <fixedString value="2.16.840.1.113883.1.3"/>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.extension">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.typeId.extension"/>
      <representation value="xmlAttr"/>
      <label value="Extension"/>
      <definition
                  value="A character string as a unique identifier within the scope of the identifier root."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="II.extension"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/st-simple"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.templateId">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.templateId"/>
      <definition
                  value="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 value="0"/>
      <max value="*"/>
      <base>
        <path value="InfrastructureRoot.templateId"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/II"/>
      </type>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.typeCode">
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.typeCode"/>
      <representation value="xmlAttr"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.sdtcPrecondition1.typeCode"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
        <profile
                 value="http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"/>
      </type>
      <fixedCode value="PRCN"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-ActRelationshipType"/>
      </binding>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.conjunctionCode">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.conjunctionCode"/>
      <definition
                  value="A code specifying the logical conjunction of the criteria among all the condition-links of Acts (e.g., and, or, exclusive-or).
All AND criteria must be true.
If OR and AND criteria occur together, one criterion out of the OR-group must be true and all AND criteria must be true also.
If XOR criteria occur together with OR and AND criteria, exactly one of the XOR criteria must be true, and at least one of the OR criteria and all AND criteria must be true.
In other words, the sets of AND, OR, and XOR criteria are in turn combined by a logical AND operator (all AND criteria and at least one OR criterion and exactly one XOR criterion)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.sdtcPrecondition1.conjunctionCode"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="http://hl7.org/cda/stds/core/StructureDefinition/CS"/>
      </type>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://terminology.hl7.org/ValueSet/v3-RelationshipConjunction|2.0.0"/>
      </binding>
    </element>
    <element
             id="Observation.referenceRange.observationRange.sdtcPrecondition1.criterion1">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <path
            value="Observation.referenceRange.observationRange.sdtcPrecondition1.criterion1"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="ObservationRange.sdtcPrecondition1.criterion1"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/Criterion"/>
      </type>
    </element>
    <element id="Observation.sdtcInFulfillmentOf1">
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-namespace">
        <valueUri value="urn:hl7-org:sdtc"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/xml-name">
        <valueString value="inFulfillmentOf1"/>
      </extension>
      <path value="Observation.sdtcInFulfillmentOf1"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Observation.sdtcInFulfillmentOf1"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code
              value="http://hl7.org/cda/stds/core/StructureDefinition/InFulfillmentOf1"/>
      </type>
    </element>
  </snapshot>
  <differential>
    <element id="Observation">
      <path value="Observation"/>
    </element>
    <element id="Observation.code.code">
      <path value="Observation.code.code"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/us/eyecare/ValueSet/DiagnosticAssessmentEyeTestCodes"/>
      </binding>
    </element>
    <element id="Observation.value:physical-quantity">
      <path value="Observation.value"/>
      <sliceName value="physical-quantity"/>
      <min value="1"/>
    </element>
    <element id="Observation.value:coded">
      <path value="Observation.value"/>
      <sliceName value="coded"/>
      <max value="0"/>
    </element>
    <element id="Observation.methodCode">
      <path value="Observation.methodCode"/>
      <mustSupport value="true"/>
    </element>
    <element id="Observation.methodCode.code">
      <path value="Observation.methodCode.code"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/us/eyecare/ValueSet/DryEyeQuestionnaireCodes"/>
      </binding>
    </element>
    <element id="Observation.targetSiteCode">
      <path value="Observation.targetSiteCode"/>
      <min value="1"/>
      <mustSupport value="true"/>
    </element>
    <element id="Observation.targetSiteCode.code">
      <path value="Observation.targetSiteCode.code"/>
      <binding>
        <strength value="required"/>
        <valueSet
                  value="http://hl7.org/cda/us/eyecare/ValueSet/EyecareTargetSiteCodes"/>
      </binding>
    </element>
  </differential>
</StructureDefinition>