STU 3 Candidate

This page is part of the FHIR Specification (v1.4.0: STU 3 Ballot 3). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3 R2

Elementdefinition.profile.xml

Raw XML (canonical form)

StructureDefinition for ElementDefinition

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="ElementDefinition"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
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          <th class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="formats.html#table" title="The logical name of the element">Name</a>
          </th>
          <th class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="formats.html#table" title="Information about the use of the element">Flags</a>
          </th>
          <th class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="formats.html#table" title="Minimum and Maximum # of times the the element can appear in the instance">Card.</a>
          </th>
          <th class="hierarchy" style="width: 100px">
            <a href="formats.html#table" title="Reference to the type of the element">Type</a>
          </th>
          <th class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="formats.html#table" title="Additional information about the element">Description &amp; Constraints</a>
            <span style="float: right">
              <a href="formats.html#table" title="Legend for this format">
                <img alt="doco" src="help16.png" style="background-color: inherit"/>
              </a>
            </span>
          </th>
        </tr>
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            <a href="elementdefinition-definitions.html#ElementDefinition" title="ElementDefinition : Captures constraints on each element within the resource, profile,
             or extension.">ElementDefinition</a>
            <a name="ElementDefinition"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="element.html">Element</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Definition of an element in a resource or extension
            <br/>
            <span style="font-style: italic" title="eld-13">Types must be unique by the combination of code and profile</span>
            <br/>
            <span style="font-style: italic" title="eld-14">Constraints must be unique by key</span>
            <br/>
            <span style="font-style: italic" title="eld-11">Binding can only be present for coded elements, string, and uri</span>
            <br/>
            <span style="font-style: italic" title="eld-8">Pattern and value are mutually exclusive</span>
            <br/>
            <span style="font-style: italic" title="eld-15">default value and meaningWhenMissing are mutually exclusive</span>
            <br/>
            <span style="font-style: italic" title="eld-2">Min &lt;= Max</span>
            <br/>
            <span style="font-style: italic" title="eld-7">Pattern may only be specified if there is one type</span>
            <br/>
            <span style="font-style: italic" title="eld-6">Fixed value may only be specified if there is one type</span>
            <br/>
            <span style="font-style: italic" title="eld-5">if the element definition has a contentReference, it cannot have type, defaultValue, fixed,
               pattern, example, minValue, maxValue, maxLength, or binding</span>
          </td>
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            <a href="elementdefinition-definitions.html#ElementDefinition.path" title="ElementDefinition.path : The path identifies the element and is expressed as a &quot;.&quot;-separat
            ed list of ancestor elements, beginning with the name of the resource or extension.">path</a>
            <a name="ElementDefinition.path"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">The path of the element (see the Detailed Descriptions)</td>
        </tr>

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            <a href="elementdefinition-definitions.html#ElementDefinition.representation" title="ElementDefinition.representation : Codes that define how this element is represented in
             instances, when the deviation varies from the normal case.">representation</a>
            <a name="ElementDefinition.representation"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">xmlAttr | xmlText | typeAttr | cdaText
            <br/>
            <a href="valueset-property-representation.html" title="How a property is represented on the wire.">PropertyRepresentation</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

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            <a href="elementdefinition-definitions.html#ElementDefinition.name" title="ElementDefinition.name : The name of this element definition. This is a unique name referring
             to a specific set of constraints applied to this element, used to provide a name to different
             slices of the same element.">name</a>
            <a name="ElementDefinition.name"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Name for this particular element definition (reference target)</td>
        </tr>

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            <a href="elementdefinition-definitions.html#ElementDefinition.label" title="ElementDefinition.label : The text to display beside the element indicating its meaning
             or to use to prompt for the element in a user display or form.">label</a>
            <a name="ElementDefinition.label"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Name for element to display with or prompt for element</td>
        </tr>

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            <a href="elementdefinition-definitions.html#ElementDefinition.code" title="ElementDefinition.code : A code that provides the meaning for the element according to
             a particular terminology.">code</a>
            <a name="ElementDefinition.code"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#Coding">Coding</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Defining code
            <br/>
            <a href="valueset-observation-codes.html" title="Codes that indicate the meaning of a data element.">LOINC Codes</a> (
            <a href="terminologies.html#example" title="Instances are not expected or even encouraged to draw from the specified value set.  The
             value set merely provides examples of the types of concepts intended to be included.">Example</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            FEhIdcAYJdYASFRUQhQkLCwkOFwcdEBAXhVabE52ecDahKy0oIQA7" style="background-color: white; background-color: inherit" title="Element"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.slicing" title="ElementDefinition.slicing : Indicates that the element is sliced into a set of alternative
             definitions (i.e. in a structure definition, there are multiple different constraints
             on a single element in the base resource). Slicing can be used in any resource that has
             cardinality ..* on the base resource, or any resource with a choice of types. The set
             of slices is any elements that come after this in the element sequence that have the same
             path, until a shorter path occurs (the shorter path terminates the set).">slicing</a>
            <a name="ElementDefinition.slicing"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="element.html">Element</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">This element is sliced - slices follow
            <br/>
            <span style="font-style: italic" title="eld-1">If there are no discriminators, there must be a definition</span>
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.slicing.discriminator" title="ElementDefinition.slicing.discriminator : Designates which child elements are used to
             discriminate between the slices when processing an instance. If one or more discriminators
             are provided, the value of the child elements in the instance data SHALL completely distinguish
             which slice the element in the resource matches based on the allowed values for those
             elements in each of the slices.">discriminator</a>
            <a name="ElementDefinition.slicing.discriminator"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Element values that are used to distinguish the slices</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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          uQmCC)">
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            <a href="elementdefinition-definitions.html#ElementDefinition.slicing.description" title="ElementDefinition.slicing.description : A human-readable text description of how the slicing
             works. If there is no discriminator, this is required to be present to provide whatever
             information is possible about how the slices can be differentiated.">description</a>
            <a name="ElementDefinition.slicing.description"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Text description of how slicing works (or not)</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            <a href="elementdefinition-definitions.html#ElementDefinition.slicing.ordered" title="ElementDefinition.slicing.ordered : If the matching elements have to occur in the same
             order as defined in the profile.">ordered</a>
            <a name="ElementDefinition.slicing.ordered"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#boolean">boolean</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">If elements must be in same order as slices</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.slicing.rules" title="ElementDefinition.slicing.rules : Whether additional slices are allowed or not. When the
             slices are ordered, profile authors can also say that additional slices are only allowed
             at the end.">rules</a>
            <a name="ElementDefinition.slicing.rules"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">closed | open | openAtEnd
            <br/>
            <a href="valueset-resource-slicing-rules.html" title="How slices are interpreted when evaluating an instance.">SlicingRules</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <a href="elementdefinition-definitions.html#ElementDefinition.short" title="ElementDefinition.short : A concise description of what this element means (e.g. for use
             in autogenerated summaries).">short</a>
            <a name="ElementDefinition.short"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Concise definition for xml presentation</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.definition" title="ElementDefinition.definition : Provides a complete explanation of the meaning of the data
             element for human readability.  For the case of elements derived from existing elements
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             the meaning of the element in the particular context of use of the resource.">definition</a>
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          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
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          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#markdown">markdown</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Full formal definition as narrative text</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.comments" title="ElementDefinition.comments : Explanatory notes and implementation guidance about the data
             element, including notes about how to use the data properly, exceptions to proper use,
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          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
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          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#markdown">markdown</a>
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          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Comments about the use of this element</td>
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        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.requirements" title="ElementDefinition.requirements : This element is for traceability of why the element was
             created and why the constraints exist as they do. This may be used to point to source
             materials or specifications that drove the structure of this element.">requirements</a>
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          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#markdown">markdown</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Why this resource has been created</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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          CYII=)">
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            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.alias" title="ElementDefinition.alias : Identifies additional names by which this element might also
             be known.">alias</a>
            <a name="ElementDefinition.alias"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Other names</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.min" title="ElementDefinition.min : The minimum number of times this element SHALL appear in the instance.">min</a>
            <a name="ElementDefinition.min"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#integer">integer</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Minimum Cardinality</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            <a href="elementdefinition-definitions.html#ElementDefinition.max" title="ElementDefinition.max : The maximum number of times this element is permitted to appear
             in the instance.">max</a>
            <a name="ElementDefinition.max"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Maximum Cardinality (a number or *)
            <br/>
            <span style="font-style: italic" title="eld-3">Max SHALL be a number or &quot;*&quot;</span>
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.base" title="ElementDefinition.base : Information about the base definition of the element, provided
             to make it unnecessary for tools to trace the deviation of the element through the derived
             and related profiles. This information is only provided where the element definition represents
             a constraint on another element definition, and must be present if there is a base element
             definition.">base</a>
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          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="element.html">Element</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Base definition information for tools</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            <a href="elementdefinition-definitions.html#ElementDefinition.base.path" title="ElementDefinition.base.path : The Path that identifies the base element - this matches
             the ElementDefinition.path for that element. Across FHIR, there is only one base definition
             of any element - that is, an element definition on a [[[StructureDefinition]]] without
             a StructureDefinition.base.">path</a>
            <a name="ElementDefinition.base.path"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Path that identifies the base element</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.base.min" title="ElementDefinition.base.min : Minimum cardinality of the base element identified by the
             path.">min</a>
            <a name="ElementDefinition.base.min"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#integer">integer</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Min cardinality of the base element</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            <a href="elementdefinition-definitions.html#ElementDefinition.base.max" title="ElementDefinition.base.max : Maximum cardinality of the base element identified by the
             path.">max</a>
            <a name="ElementDefinition.base.max"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Max cardinality of the base element</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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          YAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5
          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.contentReference" title="ElementDefinition.contentReference : Identifies the identity of an element defined elsewhere
             in the profile whose content rules should be applied to the current element.">contentReference</a>
            <a name="ElementDefinition.contentReference"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#uri">uri</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Reference to definition of content for the element</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            FEhIdcAYJdYASFRUQhQkLCwkOFwcdEBAXhVabE52ecDahKy0oIQA7" style="background-color: white; background-color: inherit" title="Element"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.type" title="ElementDefinition.type : The data type or resource that the value of this element is permitted
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            <a name="ElementDefinition.type"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="element.html">Element</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Data type and Profile for this element
            <br/>
            <span style="font-style: italic" title="eld-4">Aggregation may only be specified if one of the allowed types for the element is a resource</span>
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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          uQmCC)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            <a href="elementdefinition-definitions.html#ElementDefinition.type.code" title="ElementDefinition.type.code : Name of Data type or Resource that is a(or the) type used
             for this element.">code</a>
            <a name="ElementDefinition.type.code"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Name of Data type or Resource
            <br/>
            <a href="null" title="Either a resource or a data type.">FHIRDefinedType</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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          uQmCC)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <a href="elementdefinition-definitions.html#ElementDefinition.type.profile" title="ElementDefinition.type.profile : Identifies a profile structure or implementation Guide
             that SHALL hold for resources or datatypes referenced as the type of this element. Can
             be a local reference - to another structure in this profile, or a reference to a structure
             in another profile. When more than one profile is specified, the content must conform
             to all of them. When an implementation guide is specified, the resource SHALL conform
             to at least one profile defined in the implementation guide.">profile</a>
            <a name="ElementDefinition.type.profile"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#uri">uri</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Profile (StructureDefinition) to apply (or IG)</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.type.aggregation" title="ElementDefinition.type.aggregation : If the type is a reference to another resource, how
             the resource is or can be aggregated - is it a contained resource, or a reference, and
             if the context is a bundle, is it included in the bundle.">aggregation</a>
            <a name="ElementDefinition.type.aggregation"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">contained | referenced | bundled - how aggregated
            <br/>
            <a href="valueset-resource-aggregation-mode.html" title="How resource references can be aggregated.">AggregationMode</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <a href="elementdefinition-definitions.html#ElementDefinition.type.versioning" title="ElementDefinition.type.versioning : Whether this reference needs to be version specific
             or version independent, or whetehr either can be used.">versioning</a>
            <a name="ElementDefinition.type.versioning"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">either | independent | specific
            <br/>
            <a href="valueset-reference-version-rules.html" title="Whether a reference needs to be version specific or version independent, or whetehr either
             can be used">ReferenceVersionRules</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.defaultValue_x_" title="ElementDefinition.defaultValue[x] : The value that should be used if there is no value
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            <a name="ElementDefinition.defaultValue_x_"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#open">*</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Specified value if missing from instance</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.meaningWhenMissing" title="ElementDefinition.meaningWhenMissing : The Implicit meaning that is to be understood when
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            <a name="ElementDefinition.meaningWhenMissing"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#markdown">markdown</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Implicit meaning when this element is missing</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.fixed_x_" title="ElementDefinition.fixed[x] : Specifies a value that SHALL be exactly the value  for this
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             and all values must be an exact match (case and accent sensitive). Missing elements/attributes
             must also be missing.">fixed[x]</a>
            <a name="ElementDefinition.fixed_x_"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#open">*</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Value must be exactly this</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5
          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,R0lGODlhEAAQAOZ/APrkusOiYvvfqbiXWaV2G+jGhdq1b8GgYf3v1frw3vTUlsWkZNewbcSjY/DQk
            ad4Hb6dXv3u0f3v1ObEgfPTlerJiP3w1v79+e7OkPrfrfnjuNOtZPrpydaxa+/YrvvdpP779ZxvFPvnwKKBQaFyF/369M2vdaqHRP
            z58/HNh/vowufFhfroxO3OkPrluv779tK0e6JzGProwvrow9m4eOnIifPTlPDPkP78+Naxaf3v0/zowfXRi+bFhLWUVv379/rnwPv
            szv3rye3LiPvnv+3MjPDasKiIS/789/3x2f747eXDg+7Mifvu0tu7f+/QkfDTnPXWmPrjsvrjtPbPgrqZW+/QlPz48K2EMv36866O
            UPvowat8Ivvgq/Pbrvzgq/PguvrgrqN0Gda2evfYm9+7d/rpw9q6e/LSku/Rl/XVl/LSlfrkt+zVqe7Wqv3x1/bNffbOf59wFdS6i
            f3u0vrqyP3owPvepfXQivDQkO/PkKh9K7STVf779P///////yH5BAEAAH8ALAAAAAAQABAAAAfNgH+Cg36FfoOIhH4JBxBghYl/hQ
            kNAV0IVT5GkJKLCwtQaSsSdx9aR26Gcwt2IkQaNRI6dBERIzCFDSgWSW8WCDkbBnoOQ3uFARc/JQJfCAZlT0x4ZFyFBxdNQT9ZCBN
            WKQoKUQ+FEDgcdTIAV14YDmg2CgSFA0hmQC5TLE4VRTdrKJAoxOeFCzZSwsw4U6BCizwUQhQyEaAPiAwCVNCY0FCNnA6GPAwYoETI
            FgY9loiRA4dToTYnsOxg8CBGHE6ICvEYQ4AKzkidfgoKBAA7" style="background-color: white; background-color: inherit" title="Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.pattern_x_" title="ElementDefinition.pattern[x] : Specifies a value that the value in the instance SHALL
             follow - that is, any value in the pattern must be found in the instance. Other additional
             values may be found too. This is effectively constraint by example.  The values of elements
             present in the pattern must match exactly (case-sensitive, accent-sensitive, etc.).">pattern[x]</a>
            <a name="ElementDefinition.pattern_x_"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#open">*</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Value must have at least these property values</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5
          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,R0lGODlhEAAQAOZ/APrkusOiYvvfqbiXWaV2G+jGhdq1b8GgYf3v1frw3vTUlsWkZNewbcSjY/DQk
            ad4Hb6dXv3u0f3v1ObEgfPTlerJiP3w1v79+e7OkPrfrfnjuNOtZPrpydaxa+/YrvvdpP779ZxvFPvnwKKBQaFyF/369M2vdaqHRP
            z58/HNh/vowufFhfroxO3OkPrluv779tK0e6JzGProwvrow9m4eOnIifPTlPDPkP78+Naxaf3v0/zowfXRi+bFhLWUVv379/rnwPv
            szv3rye3LiPvnv+3MjPDasKiIS/789/3x2f747eXDg+7Mifvu0tu7f+/QkfDTnPXWmPrjsvrjtPbPgrqZW+/QlPz48K2EMv36866O
            UPvowat8Ivvgq/Pbrvzgq/PguvrgrqN0Gda2evfYm9+7d/rpw9q6e/LSku/Rl/XVl/LSlfrkt+zVqe7Wqv3x1/bNffbOf59wFdS6i
            f3u0vrqyP3owPvepfXQivDQkO/PkKh9K7STVf779P///////yH5BAEAAH8ALAAAAAAQABAAAAfNgH+Cg36FfoOIhH4JBxBghYl/hQ
            kNAV0IVT5GkJKLCwtQaSsSdx9aR26Gcwt2IkQaNRI6dBERIzCFDSgWSW8WCDkbBnoOQ3uFARc/JQJfCAZlT0x4ZFyFBxdNQT9ZCBN
            WKQoKUQ+FEDgcdTIAV14YDmg2CgSFA0hmQC5TLE4VRTdrKJAoxOeFCzZSwsw4U6BCizwUQhQyEaAPiAwCVNCY0FCNnA6GPAwYoETI
            FgY9loiRA4dToTYnsOxg8CBGHE6ICvEYQ4AKzkidfgoKBAA7" style="background-color: white; background-color: inherit" title="Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.example_x_" title="ElementDefinition.example[x] : A sample value for this element demonstrating the type
             of information that would typically be captured.">example[x]</a>
            <a name="ElementDefinition.example_x_"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#open">*</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Example value (as defined for type)</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5
          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,R0lGODlhEAAQAOZ/APrkusOiYvvfqbiXWaV2G+jGhdq1b8GgYf3v1frw3vTUlsWkZNewbcSjY/DQk
            ad4Hb6dXv3u0f3v1ObEgfPTlerJiP3w1v79+e7OkPrfrfnjuNOtZPrpydaxa+/YrvvdpP779ZxvFPvnwKKBQaFyF/369M2vdaqHRP
            z58/HNh/vowufFhfroxO3OkPrluv779tK0e6JzGProwvrow9m4eOnIifPTlPDPkP78+Naxaf3v0/zowfXRi+bFhLWUVv379/rnwPv
            szv3rye3LiPvnv+3MjPDasKiIS/789/3x2f747eXDg+7Mifvu0tu7f+/QkfDTnPXWmPrjsvrjtPbPgrqZW+/QlPz48K2EMv36866O
            UPvowat8Ivvgq/Pbrvzgq/PguvrgrqN0Gda2evfYm9+7d/rpw9q6e/LSku/Rl/XVl/LSlfrkt+zVqe7Wqv3x1/bNffbOf59wFdS6i
            f3u0vrqyP3owPvepfXQivDQkO/PkKh9K7STVf779P///////yH5BAEAAH8ALAAAAAAQABAAAAfNgH+Cg36FfoOIhH4JBxBghYl/hQ
            kNAV0IVT5GkJKLCwtQaSsSdx9aR26Gcwt2IkQaNRI6dBERIzCFDSgWSW8WCDkbBnoOQ3uFARc/JQJfCAZlT0x4ZFyFBxdNQT9ZCBN
            WKQoKUQ+FEDgcdTIAV14YDmg2CgSFA0hmQC5TLE4VRTdrKJAoxOeFCzZSwsw4U6BCizwUQhQyEaAPiAwCVNCY0FCNnA6GPAwYoETI
            FgY9loiRA4dToTYnsOxg8CBGHE6ICvEYQ4AKzkidfgoKBAA7" style="background-color: white; background-color: inherit" title="Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.minValue_x_" title="ElementDefinition.minValue[x] : The minimum allowed value for the element. The value is
             inclusive. This is allowed for the types date, dateTime, instant, time, decimal, integer,
             and Quantity.">minValue[x]</a>
            <a name="ElementDefinition.minValue_x_"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#open">*</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Minimum Allowed Value (for some types)</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
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          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,R0lGODlhEAAQAOZ/APrkusOiYvvfqbiXWaV2G+jGhdq1b8GgYf3v1frw3vTUlsWkZNewbcSjY/DQk
            ad4Hb6dXv3u0f3v1ObEgfPTlerJiP3w1v79+e7OkPrfrfnjuNOtZPrpydaxa+/YrvvdpP779ZxvFPvnwKKBQaFyF/369M2vdaqHRP
            z58/HNh/vowufFhfroxO3OkPrluv779tK0e6JzGProwvrow9m4eOnIifPTlPDPkP78+Naxaf3v0/zowfXRi+bFhLWUVv379/rnwPv
            szv3rye3LiPvnv+3MjPDasKiIS/789/3x2f747eXDg+7Mifvu0tu7f+/QkfDTnPXWmPrjsvrjtPbPgrqZW+/QlPz48K2EMv36866O
            UPvowat8Ivvgq/Pbrvzgq/PguvrgrqN0Gda2evfYm9+7d/rpw9q6e/LSku/Rl/XVl/LSlfrkt+zVqe7Wqv3x1/bNffbOf59wFdS6i
            f3u0vrqyP3owPvepfXQivDQkO/PkKh9K7STVf779P///////yH5BAEAAH8ALAAAAAAQABAAAAfNgH+Cg36FfoOIhH4JBxBghYl/hQ
            kNAV0IVT5GkJKLCwtQaSsSdx9aR26Gcwt2IkQaNRI6dBERIzCFDSgWSW8WCDkbBnoOQ3uFARc/JQJfCAZlT0x4ZFyFBxdNQT9ZCBN
            WKQoKUQ+FEDgcdTIAV14YDmg2CgSFA0hmQC5TLE4VRTdrKJAoxOeFCzZSwsw4U6BCizwUQhQyEaAPiAwCVNCY0FCNnA6GPAwYoETI
            FgY9loiRA4dToTYnsOxg8CBGHE6ICvEYQ4AKzkidfgoKBAA7" style="background-color: white; background-color: inherit" title="Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.maxValue_x_" title="ElementDefinition.maxValue[x] : The maximum allowed value for the element. The value is
             inclusive. This is allowed for the types date, dateTime, instant, time, decimal, integer,
             and Quantity.">maxValue[x]</a>
            <a name="ElementDefinition.maxValue_x_"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#open">*</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Maximum Allowed Value (for some types)</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5
          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.maxLength" title="ElementDefinition.maxLength : Indicates the maximum length in characters that is permitted
             to be present in conformant instances and which is expected to be supported by conformant
             consumers that support the element.">maxLength</a>
            <a name="ElementDefinition.maxLength"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#integer">integer</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Max length for strings</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAAL0lEQVR42u3XsQ0AQAgCQHdl/xn8jxvYWB3JlTR0VJLa+OltBwAAYP6EEQAAgCsPVYVAgIJrA/sAAAAASUVORK5
          CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
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            <a href="elementdefinition-definitions.html#ElementDefinition.condition" title="ElementDefinition.condition : A reference to an invariant that may make additional statements
             about the cardinality or value in the instance.">condition</a>
            <a name="ElementDefinition.condition"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#id">id</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Reference to invariant about presence</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            FEhIdcAYJdYASFRUQhQkLCwkOFwcdEBAXhVabE52ecDahKy0oIQA7" style="background-color: white; background-color: inherit" title="Element"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.constraint" title="ElementDefinition.constraint : Formal constraints such as co-occurrence and other constraints
             that can be computationally evaluated within the context of the instance.">constraint</a>
            <a name="ElementDefinition.constraint"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="element.html">Element</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Condition that must evaluate to true</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.constraint.key" title="ElementDefinition.constraint.key : Allows identification of which elements have their
             cardinalities impacted by the constraint.  Will not be referenced for constraints that
             do not affect cardinality.">key</a>
            <a name="ElementDefinition.constraint.key"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#id">id</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Target of 'condition' reference above</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.constraint.requirements" title="ElementDefinition.constraint.requirements : Description of why this constraint is necessary
             or appropriate.">requirements</a>
            <a name="ElementDefinition.constraint.requirements"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Why this constraint is necessary or appropriate</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.constraint.severity" title="ElementDefinition.constraint.severity : Identifies the impact constraint violation has
             on the conformance of the instance.">severity</a>
            <a name="ElementDefinition.constraint.severity"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">error | warning
            <br/>
            <a href="valueset-constraint-severity.html" title="SHALL applications comply with this constraint?">ConstraintSeverity</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.constraint.human" title="ElementDefinition.constraint.human : Text that can be used to describe the constraint
             in messages identifying that the constraint has been violated.">human</a>
            <a name="ElementDefinition.constraint.human"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Human description of constraint</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.constraint.expression" title="ElementDefinition.constraint.expression : A [FluentPath](fluentpath.html) expression of
             constraint that can be executed to see if this constraint is met.">expression</a>
            <a name="ElementDefinition.constraint.expression"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">FluentPath expression of constraint</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.constraint.xpath" title="ElementDefinition.constraint.xpath : An XPath expression of constraint that can be executed
             to see if this constraint is met.">xpath</a>
            <a name="ElementDefinition.constraint.xpath"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">XPath expression of constraint</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.mustSupport" title="ElementDefinition.mustSupport : If true, implementations that produce or consume resources
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             element may be ignored and not supported.">mustSupport</a>
            <a name="ElementDefinition.mustSupport"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#boolean">boolean</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">If the element must supported</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
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            <a href="elementdefinition-definitions.html#ElementDefinition.isModifier" title="ElementDefinition.isModifier : If true, the value of this element affects the interpretation
             of the element or resource that contains it, and the value of the element cannot be ignored.
             Typically, this is used for status, negation and qualification codes. The effect of this
             is that the element cannot be ignored by systems: they SHALL either recognize the element
             and process it, and/or a pre-determination has been made that it is not relevant to their
             particular system.">isModifier</a>
            <a name="ElementDefinition.isModifier"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#boolean">boolean</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">If this modifies the meaning of other elements</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
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            <a href="elementdefinition-definitions.html#ElementDefinition.isSummary" title="ElementDefinition.isSummary : Whether the element should be included if a client requests
             a search with the parameter _summary=true.">isSummary</a>
            <a name="ElementDefinition.isSummary"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#boolean">boolean</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Include when _summary = true?</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.binding" title="ElementDefinition.binding : Binds to a value set if this element is coded (code, Coding,
             CodeableConcept).">binding</a>
            <a name="ElementDefinition.binding"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="element.html">Element</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">ValueSet details if this is coded
            <br/>
            <span style="font-style: italic" title="eld-10">provide either a reference or a description (or both)</span>
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.binding.strength" title="ElementDefinition.binding.strength : Indicates the degree of conformance expectations
             associated with this binding - that is, the degree to which the provided value set must
             be adhered to in the instances.">strength</a>
            <a name="ElementDefinition.binding.strength"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">required | extensible | preferred | example
            <br/>
            <a href="valueset-binding-strength.html" title="Indication of the degree of conformance expectations associated with a binding.">BindingStrength</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.binding.description" title="ElementDefinition.binding.description : Describes the intended use of this particular
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            <a name="ElementDefinition.binding.description"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Human explanation of the value set</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.binding.valueSet_x_" title="ElementDefinition.binding.valueSet[x] : Points to the value set or external definition
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            <a name="ElementDefinition.binding.valueSet_x_"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ </span>
            <span title="This element has or is affected by some invariants">I</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Source of value set
            <br/>
            <span style="font-style: italic" title="eld-12">URI SHALL start with http:// or https:// urn:</span>
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <span title="String of characters used to identify a name or a resource">valueSetUri</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#uri">uri</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            KlQpU3uPjAwhX2CCcGsgOAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Reference to another Resource"/> valueSetReference
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="references.html">Reference</a>(
            <a href="valueset.html">ValueSet</a>)
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px"/>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
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            <a href="elementdefinition-definitions.html#ElementDefinition.mapping" title="ElementDefinition.mapping : Identifies a concept from an external specification that roughly
             corresponds to this element.">mapping</a>
            <a name="ElementDefinition.mapping"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..*</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="element.html">Element</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Map element to another set of definitions</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
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            <a href="elementdefinition-definitions.html#ElementDefinition.mapping.identity" title="ElementDefinition.mapping.identity : An internal reference to the definition of a mapping.">identity</a>
            <a name="ElementDefinition.mapping.identity"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#id">id</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Reference to mapping declaration</td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAALElEQVR42u3QwQkAMAwDsezq/WdIO4XJQwa9DTdJpulv258AAMANIgAAADUPYAVAgAJ//usAAAAASUVORK5CYII
          =)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIZgEiYEgAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAIElEQVQ4y2P8//8/AyWAiY
            FCMGrAqAGjBowaMGoAAgAALL0DKYQ0DPIAAAAASUVORK5CYII=" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzI3XJ6V3QAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+2RsQ0AIAzDav
            7/2VzQwoCY4iWbZSmo1QGoUgNMghvWaIejPQW/CrrNCylIwcOCDYfLNRcNer4SAAAAAElFTkSuQmCC" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.mapping.language" title="ElementDefinition.mapping.language : Identifies the computable language in which mapping.map
             is expressed.">language</a>
            <a name="ElementDefinition.mapping.language"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">0..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#code">code</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Computable language of mapping
            <br/>
            <a href="http://www.rfc-editor.org/bcp/bcp13.txt" title="The mime type of an attachment. Any valid mime type is allowed.">MimeType</a> (
            <a href="terminologies.html#required" title="To be conformant, instances of this element SHALL include a code from the specified value
             set.">Required</a>)
          </td>
        </tr>

        <tr style="border: 0px; padding:0px; vertical-align: top; background-color: white;">
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px;
           white-space: nowrap; background-image: url(data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAyAAAAACCA
          YAAACg/LjIAAAAI0lEQVR42u3QIQEAAAACIL/6/4MvTAQOkLYBAAB4kAAAANwMad9AqkRjgNAAAAAASUVORK5CYII=)">
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAAWCAYAAAABxvaqAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIs1vtcMQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAE0lEQVQI12P4//8/AxMDAw
            NdCABMPwMo2ctnoQAAAABJRU5ErkJggg==" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzIZgEiYEgAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAAIElEQVQ4y2P8//8/AyWAiY
            FCMGrAqAGjBowaMGoAAgAALL0DKYQ0DPIAAAAASUVORK5CYII=" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAWCAYAAADJqhx8AAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB
            3RJTUUH3wYeFzME+lXFigAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUHAAAANklEQVQ4y+3OsRUAIAjEUO
            L+O8cJABttJM11/x1qZAGqRBEVcNIqdWj1efDqQbb3HwwwwEfABmQUHSPM9dtDAAAAAElFTkSuQmCC" style="background-color: inherit"/>
            <img alt="." class="hierarchy" src="data: image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIW
            XMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3gYBFzI0BrFQCwAAAERJREFUOMtj/P//PwMlgImBQjDwBrCcOnWKokBgYWBgYDCU+06W5i
            8MUggvnH/EOVJjAW4AuQHJ+O75LYqikXE0LzAAALePEntTkEoSAAAAAElFTkSuQmCC" style="background-color: white; background-color: inherit" title="Primitive Data Type"/> 
            <a href="elementdefinition-definitions.html#ElementDefinition.mapping.map" title="ElementDefinition.mapping.map : Expresses what part of the target specification corresponds
             to this element.">map</a>
            <a name="ElementDefinition.mapping.map"> </a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <span title="This element is included in summaries">Σ</span>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">1..1</td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">
            <a href="datatypes.html#string">string</a>
          </td>
          <td class="hierarchy" style="vertical-align: top; text-align : left; background-color: white; padding:0px 4px 0px 4px">Details of the mapping</td>
        </tr>

        <tr>
          <td class="hierarchy" colspan="5">
            <br/>
            <a href="formats.html#table" title="Legend for this format">
              <img alt="doco" src="help16.png" style="background-color: inherit"/> Documentation for this format
            </a>
          </td>
        </tr>
      </table>
    </div>
  </text>
  <url value="http://hl7.org/fhir/StructureDefinition/ElementDefinition"/>
  <name value="ElementDefinition"/>
  <status value="draft"/>
  <publisher value="HL7 FHIR Standard"/>
  <contact>
    <telecom>
      <system value="other"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
  </contact>
  <date value="2016-03-31T08:01:25+11:00"/>
  <description value="Base StructureDefinition for ElementDefinition Type"/>
  <fhirVersion value="1.4.0"/>
  <mapping>
    <identity value="dex"/>
    <uri value="http://wiki.ihe.net/index.php?title=Data_Element_Exchange"/>
    <name value="IHE Data Element Exchange (DEX)"/>
  </mapping>
  <mapping>
    <identity value="v2"/>
    <uri value="http://hl7.org/v2"/>
    <name value="HL7 v2"/>
  </mapping>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM"/>
  </mapping>
  <mapping>
    <identity value="iso11179"/>
    <uri value="http://metadata-standards.org/11179/"/>
    <name value="ISO 11179"/>
  </mapping>
  <mapping>
    <identity value="loinc"/>
    <uri value="http://loinc.org"/>
    <name value="LOINC"/>
  </mapping>
  <kind value="datatype"/>
  <abstract value="false"/>
  <baseType value="Element"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Element"/>
  <derivation value="specialization"/>
  <snapshot>
    <element>
      <path value="ElementDefinition"/>
      <short value="Definition of an element in a resource or extension"/>
      <definition value="Captures constraints on each element within the resource, profile, or extension."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="eld-13"/>
        <severity value="error"/>
        <human value="Types must be unique by the combination of code and profile"/>
        <expression value="type.select(code+profile).distinct()"/>
        <xpath value="not(exists(for $type in f:type return $type/preceding-sibling::f:type[f:code/@value=$type/f:code/@va
        lue and f:profile/@value = $type/f:profile/@value]))"/>
      </constraint>
      <constraint>
        <key value="eld-14"/>
        <severity value="error"/>
        <human value="Constraints must be unique by key"/>
        <expression value="constraint.select(key).distinct()"/>
        <xpath value="count(f:constraint) = count(distinct-values(f:constraint/f:key/@value))"/>
      </constraint>
      <constraint>
        <key value="eld-11"/>
        <severity value="error"/>
        <human value="Binding can only be present for coded elements, string, and uri"/>
        <expression value="binding.empty() or type.code.empty() or type.select((code = 'code') or (code = 'Coding')
         or (code='CodeableConcept') or (code = 'Quantity') or (code = 'Extension') or (code =
         'string') or (code = 'uri')).exists()"/>
        <xpath value="not(exists(f:binding)) or (count(f:type/f:code) = 0) or  f:type/f:code/@value=('code','Coding','Code
        ableConcept','Quantity','Extension', 'string', 'uri')"/>
      </constraint>
      <constraint>
        <key value="eld-8"/>
        <severity value="error"/>
        <human value="Pattern and value are mutually exclusive"/>
        <expression value="pattern.empty() or fixed.empty()"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'pattern')])) or not(exists(f:*[starts-with(local-name(.),
         'value')]))"/>
      </constraint>
      <constraint>
        <key value="eld-15"/>
        <severity value="error"/>
        <human value="default value and meaningWhenMissing are mutually exclusive"/>
        <expression value="defaultValue.empty() or meaningWhenMissing.empty()"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'fixed')])) or not(exists(f:meaningWhenMissing))"/>
      </constraint>
      <constraint>
        <key value="eld-2"/>
        <severity value="error"/>
        <human value="Min &lt;= Max"/>
        <expression value="min.empty() or max.empty() or (max = '*') or (min &lt;= max.toInteger())"/>
        <xpath value="not(exists(f:min)) or not(exists(f:max)) or (not(f:max/@value) and not(f:min/@value))
         or (f:max/@value = '*') or (number(f:max/@value) &gt;= f:min/@value)"/>
      </constraint>
      <constraint>
        <key value="eld-7"/>
        <severity value="error"/>
        <human value="Pattern may only be specified if there is one type"/>
        <expression value="pattern.empty() or (type.count() = 1)"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'pattern')])) or (count(f:type)=1)"/>
      </constraint>
      <constraint>
        <key value="eld-6"/>
        <severity value="error"/>
        <human value="Fixed value may only be specified if there is one type"/>
        <expression value="fixed.empty() or (type.count() = 1)"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'fixed')])) or (count(f:type)=1)"/>
      </constraint>
      <constraint>
        <key value="eld-5"/>
        <severity value="error"/>
        <human value="if the element definition has a contentReference, it cannot have type, defaultValue, fixed,
         pattern, example, minValue, maxValue, maxLength, or binding"/>
        <expression value="contentReference.empty() or (type.empty() and defaultValue.empty() and fixed.empty() and
         pattern.empty() and example.empty() and minValue.empty() and maxValue.empty() and maxLength.empty()
         and binding.empty())"/>
        <xpath value="not(exists(f:contentReference) and (exists(f:type) or exists(f:*[starts-with(local-name(.),
         'value')]) or exists(f:*[starts-with(local-name(.), 'defaultValue')])  or exists(f:*[starts-with(loc
        al-name(.), 'fixed')]) or exists(f:*[starts-with(local-name(.), 'pattern')]) or exists(f:*[starts-wit
        h(local-name(.), 'example')]) or exists(f:*[starts-with(local-name(.), 'f:minValue')])
         or exists(f:*[starts-with(local-name(.), 'f:maxValue')]) or exists(f:maxLength) or exists(f:binding)
        ))"/>
      </constraint>
      <mapping>
        <identity value="dex"/>
        <map value="RetrieveMetadata response"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="Observation[classCode=OBS, moodCode=DEFN]"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Data_Element"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension."/>
      <comments value="There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.path"/>
      <short value="The path of the element (see the Detailed Descriptions)"/>
      <definition value="The path identifies the element and is expressed as a &quot;.&quot;-separated list of
       ancestor elements, beginning with the name of the resource or extension."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Name, Identifier &amp; Context"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.representation"/>
      <short value="xmlAttr | xmlText | typeAttr | cdaText"/>
      <definition value="Codes that define how this element is represented in instances, when the deviation varies
       from the normal case."/>
      <comments value="This is rarely used except for special cases where the representation deviates from the
       normal, which is done only very reluctantly, and can only be done in the base standard
       (and profiles must reproduce what the base standard does)."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="How a property is represented on the wire."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/property-representation"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.name"/>
      <short value="Name for this particular element definition (reference target)"/>
      <definition value="The name of this element definition. This is a unique name referring to a specific set
       of constraints applied to this element, used to provide a name to different slices of
       the same element."/>
      <comments value="The name SHALL be unique within the structure within the context of the constrained resource
       element.  (Though to avoid confusion, uniqueness across all elements is recommended.)."/>
      <requirements value="May also be used for code generation purposes."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.label"/>
      <short value="Name for element to display with or prompt for element"/>
      <definition value="The text to display beside the element indicating its meaning or to use to prompt for
       the element in a user display or form."/>
      <comments value="Question and label serve similar purposes in they both can be used to prompt for capturing
       a data element.  Whether the question form or label form should be used will depend on
       the type of instrument being used to capture the information."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="./code/display"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.code"/>
      <short value="Defining code"/>
      <definition value="A code that provides the meaning for the element according to a particular terminology."/>
      <comments value="The data element definition and other constraints SHALL be a proper constraint on the
       meaning (as defined in the code system, including relationships) of any code listed here.
        Where multiple codes exist in a terminology that could correspond to the data element,
       the most granular code(s) should be selected, so long as they are not more restrictive
       than the data element itself."/>
      <requirements value="Links the meaning of an element to an external terminology."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Coding"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="example"/>
        <description value="Codes that indicate the meaning of a data element."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/observation-codes"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="loinc"/>
        <map value="LOINC_NUM"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.7"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./code (root or translation)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Data_Element).data_element_concept.identifier"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing"/>
      <short value="This element is sliced - slices follow"/>
      <definition value="Indicates that the element is sliced into a set of alternative definitions (i.e. in a
       structure definition, there are multiple different constraints on a single element in
       the base resource). Slicing can be used in any resource that has cardinality ..* on the
       base resource, or any resource with a choice of types. The set of slices is any elements
       that come after this in the element sequence that have the same path, until a shorter
       path occurs (the shorter path terminates the set)."/>
      <comments value="The first element in the sequence, the one that carries the slicing, is the unconstrained
       element, for reference purposes . This may include the unconstrained children."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="eld-1"/>
        <severity value="error"/>
        <human value="If there are no discriminators, there must be a definition"/>
        <expression value="discriminator or description"/>
        <xpath value="(f:discriminator) or (f:description)"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension."/>
      <comments value="There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.discriminator"/>
      <short value="Element values that are used to distinguish the slices"/>
      <definition value="Designates which child elements are used to discriminate between the slices when processing
       an instance. If one or more discriminators are provided, the value of the child elements
       in the instance data SHALL completely distinguish which slice the element in the resource
       matches based on the allowed values for those elements in each of the slices."/>
      <comments value="If there is no discriminator, the content is hard to process, so this should be avoided.
       If the base element has a cardinality of ..1, and there is a choice of types, the discriminator
       most be &quot;@type&quot;."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.description"/>
      <short value="Text description of how slicing works (or not)"/>
      <definition value="A human-readable text description of how the slicing works. If there is no discriminator,
       this is required to be present to provide whatever information is possible about how the
       slices can be differentiated."/>
      <comments value="If it's really not possible to differentiate them, the design should be re-evaluated to
       make the content usable."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="eld-1"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.ordered"/>
      <short value="If elements must be in same order as slices"/>
      <definition value="If the matching elements have to occur in the same order as defined in the profile."/>
      <comments value="Order should only be required when it is a pressing concern for presentation. Profile
       authors should consider making the order a feature of the rules about the narrative, not
       the rules about the data - requiring ordered data makes the profile much less re-usable."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.rules"/>
      <short value="closed | open | openAtEnd"/>
      <definition value="Whether additional slices are allowed or not. When the slices are ordered, profile authors
       can also say that additional slices are only allowed at the end."/>
      <comments value="Allowing additional elements makes for a much for flexible template - it's open for use
       in wider contexts, but also means that the content of the resource is not closed, and
       applications have to decide how to handle content not described by the profile."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="How slices are interpreted when evaluating an instance."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-slicing-rules"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.short"/>
      <short value="Concise definition for xml presentation"/>
      <definition value="A concise description of what this element means (e.g. for use in autogenerated summaries)."/>
      <comments value="May change the term to provide language more appropriate to the context of the profile
       or to reflect slicing."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.definition"/>
      <short value="Full formal definition as narrative text"/>
      <definition value="Provides a complete explanation of the meaning of the data element for human readability.
        For the case of elements derived from existing elements (e.g. constraints), the definition
       SHALL be consistent with the base definition, but convey the meaning of the element in
       the particular context of use of the resource."/>
      <comments value="It is easy for a different definition to change the meaning of an element and this can
       have nasty downstream consequences. Please be careful when providing definitions."/>
      <requirements value="To allow a user to state the usage of an element in a particular context."/>
      <alias value="Description"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="TERM DEFINITION/DESCRIPTION(S)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.6, OM1.41"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./text"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Designatable_Item).definition.text  acceptability=preferred in default context"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.comments"/>
      <short value="Comments about the use of this element"/>
      <definition value="Explanatory notes and implementation guidance about the data element, including notes
       about how to use the data properly, exceptions to proper use, etc."/>
      <comments value="If it is possible to capture usage rules using constraints, that mechanism should be used
       in preference to this element."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="COMMENTS"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="NTE, OM.32, OM1.33, OM1.39"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./inboundRelationship[typeCode=SUBJ]/source[classCode=LIST, moodCode=EVN]/code"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Administered_Item).explanatory_comment"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.requirements"/>
      <short value="Why this resource has been created"/>
      <definition value="This element is for traceability of why the element was created and why the constraints
       exist as they do. This may be used to point to source materials or specifications that
       drove the structure of this element."/>
      <comments value="This element does not describe the usage of the element (that's done in comments), rather
       it's for traceability of *why* the element is either needed or why the constraints exist
       as they do.  This may be used to point to source materials or specifications that drove
       the structure of this data element."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="R/O/C"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./inboundRelationship[typeCode=META]/source[classCode=ACT, moodCode=EVN, isCriterionInd=true]/reason
        Code/originalText"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Registered_item).document_reference[document_type=requirements].notation"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.alias"/>
      <short value="Other names"/>
      <definition value="Identifies additional names by which this element might also be known."/>
      <requirements value="Allows for better easier recognition of the element by multiple communities, including
       international communities."/>
      <alias value="synonym"/>
      <alias value="other name"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="RELATED NAMES (only some of these apply)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.8, OM1.52"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="Not currently expressible"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Designatable_Item).designation.sign  acceptability!=preferred or context is other than
         default"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.min"/>
      <short value="Minimum Cardinality"/>
      <definition value="The minimum number of times this element SHALL appear in the instance."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="integer"/>
      </type>
      <condition value="eld-2"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Minimum  size of  data element  values?"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.max"/>
      <short value="Maximum Cardinality (a number or *)"/>
      <definition value="The maximum number of times this element is permitted to appear in the instance."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="eld-3"/>
      <condition value="eld-2"/>
      <constraint>
        <key value="eld-3"/>
        <severity value="error"/>
        <human value="Max SHALL be a number or &quot;*&quot;"/>
        <expression value="max.empty() or (max = '*') or (max.toInteger() &gt;= 0)"/>
        <xpath value="@value='*' or (normalize-space(@value)!='' and normalize-space(translate(@value, '0123456789',''))='
        ')"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="OMC.10"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Maximum  size of  data element  values?"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base"/>
      <short value="Base definition information for tools"/>
      <definition value="Information about the base definition of the element, provided to make it unnecessary
       for tools to trace the deviation of the element through the derived and related profiles.
       This information is only provided where the element definition represents a constraint
       on another element definition, and must be present if there is a base element definition."/>
      <comments value="The base information does not carry any information that could not be determined from
       the path and related profiles, but making this determination requires both that the related
       profiles are available, and that the algorithm to determine them be available. So they
       are deformalised into this location for tooling convenience, and to ensure that the base
       information is available without dependencies."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Element"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension."/>
      <comments value="There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.path"/>
      <short value="Path that identifies the base element"/>
      <definition value="The Path that identifies the base element - this matches the ElementDefinition.path for
       that element. Across FHIR, there is only one base definition of any element - that is,
       an element definition on a [[[StructureDefinition]]] without a StructureDefinition.base."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.min"/>
      <short value="Min cardinality of the base element"/>
      <definition value="Minimum cardinality of the base element identified by the path."/>
      <comments value="This is provided for consistency with max, and may affect code generation of mandatory
       elements of the base resource are generated differently (some reference implementations
       have done this)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="integer"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.max"/>
      <short value="Max cardinality of the base element"/>
      <definition value="Maximum cardinality of the base element identified by the path."/>
      <comments value="This is provided to code generation, since the wire representation in JSON differs depending
       on whether the base element has max &gt; 1. Also, some forms of code generation may differ."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.contentReference"/>
      <short value="Reference to definition of content for the element"/>
      <definition value="Identifies the identity of an element defined elsewhere in the profile whose content rules
       should be applied to the current element."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <condition value="eld-5"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
        <valueString value="TypeRef"/>
      </extension>
      <path value="ElementDefinition.type"/>
      <short value="Data type and Profile for this element"/>
      <definition value="The data type or resource that the value of this element is permitted to be."/>
      <comments value="The Type of the element can be left blank, in which case the type is inherited from the
       resource. The type can only be listed in this field if it is an allowed option in the
       base resource."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <condition value="eld-13"/>
      <constraint>
        <key value="eld-4"/>
        <severity value="error"/>
        <human value="Aggregation may only be specified if one of the allowed types for the element is a resource"/>
        <expression value="aggregation.empty() or (code = 'Reference')"/>
        <xpath value="not(exists(f:aggregation)) or exists(f:code[@value = 'Reference'])"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="dex"/>
        <map value="valueDomain.dataType"/>
      </mapping>
      <mapping>
        <identity value="loinc"/>
        <map value="HL7_V2_DATATYPE (translation required), HL7_V3_DATATYPE (translation required)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.3, OMC.9"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.data+Q14type"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension."/>
      <comments value="There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.code"/>
      <short value="Name of Data type or Resource"/>
      <definition value="Name of Data type or Resource that is a(or the) type used for this element."/>
      <comments value="If the element is a reference to another resource, this element contains &quot;Reference&quot;,
       and the profile element refers to the profile of the allowed target of the resource, which
       may be a reference to the general definition of a resource (e.g. http://hl7.org/fhir/StructureDefini
      tion/Patient). There would be one pair of type/code for each allowed target resource type."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="Either a resource or a data type."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/defined-types"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="loinc"/>
        <map value="HL7_V2_DATATYPE (translation required), HL7_V3_DATATYPE (translation required)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.3"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.data+Q14type"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.profile"/>
      <short value="Profile (StructureDefinition) to apply (or IG)"/>
      <definition value="Identifies a profile structure or implementation Guide that SHALL hold for resources or
       datatypes referenced as the type of this element. Can be a local reference - to another
       structure in this profile, or a reference to a structure in another profile. When more
       than one profile is specified, the content must conform to all of them. When an implementation
       guide is specified, the resource SHALL conform to at least one profile defined in the
       implementation guide."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="uri"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.aggregation"/>
      <short value="contained | referenced | bundled - how aggregated"/>
      <definition value="If the type is a reference to another resource, how the resource is or can be aggregated
       - is it a contained resource, or a reference, and if the context is a bundle, is it included
       in the bundle."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <condition value="eld-4"/>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="How resource references can be aggregated."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-aggregation-mode"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.versioning"/>
      <short value="either | independent | specific"/>
      <definition value="Whether this reference needs to be version specific or version independent, or whetehr
       either can be used."/>
      <comments value="The base specification never makes a rule as to which form is allowed, but implementation
       guides may do this."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <defaultValueCode value="either"/>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="Whether a reference needs to be version specific or version independent, or whetehr either
         can be used"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/reference-version-rules"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.defaultValue[x]"/>
      <short value="Specified value if missing from instance"/>
      <definition value="The value that should be used if there is no value stated in the instance (e.g. 'if not
       otherwise specified, the abstract is false')."/>
      <comments value="Default values can only be specified on a resource, data type, or extension definition,
       and never in a profile that applies to one of these. Specifying a default value means
       that the property can never been unknown - it must always have a value. Further, the default
       value can never be changed. For these reasons, default values are (and should be) used
       extremely sparingly."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <condition value="eld-15"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.meaningWhenMissing"/>
      <short value="Implicit meaning when this element is missing"/>
      <definition value="The Implicit meaning that is to be understood when this element is missing (e.g. 'when
       this element is missing, the period is ongoing'."/>
      <comments value="Implicit meanings for missing values can only be specified on a resource, data type, or
       extension definition, and never in a profile that applies to one of these. An implicit
       meaning for a missing value can never be changed, and specifying one has the consequence
       that constraining its use in profiles eliminates use cases as possibilities, not merely
       moving them out of scope."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <condition value="eld-15"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.fixed[x]"/>
      <short value="Value must be exactly this"/>
      <definition value="Specifies a value that SHALL be exactly the value  for this element in the instance. For
       purposes of comparison, non-significant whitespace is ignored, and all values must be
       an exact match (case and accent sensitive). Missing elements/attributes must also be missing."/>
      <comments value="This is not recommended for Coding and CodeableConcept since these often have highly contextual
       properties such as version or display."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <condition value="eld-5"/>
      <condition value="eld-6"/>
      <condition value="eld-8"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="N/A (only relevant when constraining, which 11179 doesn't do)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.pattern[x]"/>
      <short value="Value must have at least these property values"/>
      <definition value="Specifies a value that the value in the instance SHALL follow - that is, any value in
       the pattern must be found in the instance. Other additional values may be found too. This
       is effectively constraint by example.  The values of elements present in the pattern must
       match exactly (case-sensitive, accent-sensitive, etc.)."/>
      <comments value="Mostly used for fixing values of CodeableConcept. At present, pattern[x] is not recommended
       as a basis for slicing while issues related to this are investigated during the DSTU period."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <condition value="eld-5"/>
      <condition value="eld-7"/>
      <condition value="eld-8"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.example[x]"/>
      <short value="Example value (as defined for type)"/>
      <definition value="A sample value for this element demonstrating the type of information that would typically
       be captured."/>
      <comments value="This will most commonly be present for data where it's not implicitly obvious from either
       the data type or value set what the values might be.  (I.e. Example values for dates or
       quantities would generally be unnecessary.)  If the example value is fully populated,
       the publication tool can generate an instance automatically."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="EXMPL_ANSWERS"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".example"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.minValue[x]"/>
      <short value="Minimum Allowed Value (for some types)"/>
      <definition value="The minimum allowed value for the element. The value is inclusive. This is allowed for
       the types date, dateTime, instant, time, decimal, integer, and Quantity."/>
      <comments value="Except for date/date/instant, the type of the minValue[x] SHALL be the same as the specified
       type of the element. For the date/dateTime/instant values, the type of minValue[x] SHALL
       be either the same, or a a [Duration](datatypes.html#duration) which specifies a relative
       time limit to the current time. The duration value is positive, and is subtracted from
       the current clock to determine the minimum allowable value.   A minimum value for a Quantity
       is interpreted as an canonical minimum - e.g. you cannot provide 100mg if the minimum
       value is 10g."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.maxValue[x]"/>
      <short value="Maximum Allowed Value (for some types)"/>
      <definition value="The maximum allowed value for the element. The value is inclusive. This is allowed for
       the types date, dateTime, instant, time, decimal, integer, and Quantity."/>
      <comments value="Except for date/date/instant, the type of the maxValue[x] SHALL be the same as the specified
       type of the element. For the date/dateTime/instant values, the type of maxValue[x] SHALL
       be either the same, or a a [Duration](datatypes.html#duration) which specifies a relative
       time limit to the current time. The duration value is positive, and is added to the current
       clock to determine the maximum allowable value.   A maximum value for a Quantity is interpreted
       as an canonical maximum - e.g. you cannot provide 10g if the maximum value is 50mg."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.maxLength"/>
      <short value="Max length for strings"/>
      <definition value="Indicates the maximum length in characters that is permitted to be present in conformant
       instances and which is expected to be supported by conformant consumers that support the
       element."/>
      <comments value="Receivers are not required to reject instances that exceed the maximum length.  The full
       length could be stored.  In some cases, data might be truncated, though truncation should
       be undertaken with care and an understanding of the consequences of doing so. If not specified,
       there is no conformance expectation for length support."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="integer"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="OMC.12"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.maximum_character_quantity"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.condition"/>
      <short value="Reference to invariant about presence"/>
      <definition value="A reference to an invariant that may make additional statements about the cardinality
       or value in the instance."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="id"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint"/>
      <short value="Condition that must evaluate to true"/>
      <definition value="Formal constraints such as co-occurrence and other constraints that can be computationally
       evaluated within the context of the instance."/>
      <comments value="Constraints should be declared on the &quot;context&quot; element - the lowest element
       in the hierarchy that is common to all nodes referenced by the constraint."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.constraint.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.constraint.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension."/>
      <comments value="There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.constraint.key"/>
      <short value="Target of 'condition' reference above"/>
      <definition value="Allows identification of which elements have their cardinalities impacted by the constraint.
        Will not be referenced for constraints that do not affect cardinality."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
      <condition value="eld-14"/>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.requirements"/>
      <short value="Why this constraint is necessary or appropriate"/>
      <definition value="Description of why this constraint is necessary or appropriate."/>
      <comments value="To be used if the reason for the constraint may not be intuitive to all implementers."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.severity"/>
      <short value="error | warning"/>
      <definition value="Identifies the impact constraint violation has on the conformance of the instance."/>
      <comments value="This allows constraints to be asserted as &quot;shall&quot; (error) and &quot;should&quot;
       (warning)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="SHALL applications comply with this constraint?"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/constraint-severity"/>
        </valueSetReference>
      </binding>
    </element>
    <element>
      <path value="ElementDefinition.constraint.human"/>
      <short value="Human description of constraint"/>
      <definition value="Text that can be used to describe the constraint in messages identifying that the constraint
       has been violated."/>
      <comments value="Should be expressed in business terms as much as possible."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.expression"/>
      <short value="FluentPath expression of constraint"/>
      <definition value="A [FluentPath](fluentpath.html) expression of constraint that can be executed to see if
       this constraint is met."/>
      <requirements value="Used by validation tooling tests of the validity of the resource."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.xpath"/>
      <short value="XPath expression of constraint"/>
      <definition value="An XPath expression of constraint that can be executed to see if this constraint is met."/>
      <comments value="Elements SHALL use &quot;f&quot; as the namespace prefix for the FHIR namespace, and &quot;x&quot;
       for the xhtml namespace, and SHALL NOT use any other prefixes."/>
      <requirements value="Used in Schematron tests of the validity of the resource."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.mustSupport"/>
      <short value="If the element must supported"/>
      <definition value="If true, implementations that produce or consume resources SHALL provide &quot;support&quot;
       for the element in some meaningful way.  If false, the element may be ignored and not
       supported."/>
      <comments value="&quot;Something useful&quot; is context dependent and impossible to describe in the base
       FHIR specification. For this reason, tue mustSupport flag is never set to true by the
       FHIR specification itself - it is only set to true in profiles.   This is done in [Resource
       Profiles](profiling.html#mustsupport), where the profile labels an element as mustSupport=true.
       When a profile does this, it SHALL also make clear exactly what kind of &quot;support&quot;
       is required, as this can mean many things.  Note that an element that has the property
       IsModifier is not necessarily a &quot;key&quot; element (e.g. one of the important elements
       to make use of the resource), nor is it automatically mustSupport - however both of these
       things are more likely to be true for IsModifier elements than for other elements."/>
      <requirements value="Allows a profile to set expectations for system capabilities beyond merely respecting
       cardinality constraints."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.isModifier"/>
      <short value="If this modifies the meaning of other elements"/>
      <definition value="If true, the value of this element affects the interpretation of the element or resource
       that contains it, and the value of the element cannot be ignored. Typically, this is used
       for status, negation and qualification codes. The effect of this is that the element cannot
       be ignored by systems: they SHALL either recognize the element and process it, and/or
       a pre-determination has been made that it is not relevant to their particular system."/>
      <comments value="Only the definition of an element can set IsModifier true - either the specification itself
       or where an extension is originally defined. Once set, it cannot be changed in derived
       profiles. An element/extension that has isModifier=true SHOULD also have a minimum cardinality
       of 1, so that there is no lack of clarity about what to do if it is missing. If it can
       be missing, the definition SHALL make the meaning of a missing element clear."/>
      <requirements value="Allows elements to be introduced into a specification that can't safely be ignored by
       applications that don't recognize them."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.isSummary"/>
      <short value="Include when _summary = true?"/>
      <definition value="Whether the element should be included if a client requests a search with the parameter
       _summary=true."/>
      <comments value="Some resources include a set of simple metadata, and some very large data. This element
       is used to reduce the quantity of data returned in searches. Note that servers may pre-cache
       summarized resources for optimal performance, so servers may not support per-profile use
       of the isSummary flag."/>
      <requirements value="Allow clients to search through large resources quickly."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding"/>
      <short value="ValueSet details if this is coded"/>
      <definition value="Binds to a value set if this element is coded (code, Coding, CodeableConcept)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Element"/>
      </type>
      <condition value="eld-11"/>
      <constraint>
        <key value="eld-10"/>
        <severity value="error"/>
        <human value="provide either a reference or a description (or both)"/>
        <expression value="valueSet or description"/>
        <xpath value="(exists(f:valueSetUri) or exists(f:valueSetReference)) or exists(f:description)"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="ANSWER LIST, NORMATIVE ANSWER LIST"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM3, OMC.11"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension."/>
      <comments value="There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.strength"/>
      <short value="required | extensible | preferred | example"/>
      <definition value="Indicates the degree of conformance expectations associated with this binding - that is,
       the degree to which the provided value set must be adhered to in the instances."/>
      <comments value="For further discussion, see [[[Using Terminologies]]]."/>
      <alias value="conformance"/>
      <alias value="extensibility"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="Indication of the degree of conformance expectations associated with a binding."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/binding-strength"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="loinc"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.description"/>
      <short value="Human explanation of the value set"/>
      <definition value="Describes the intended use of this particular set of codes."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="eld-10"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.description"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.valueSet[x]"/>
      <short value="Source of value set"/>
      <definition value="Points to the value set or external definition (e.g. implicit value set) that identifies
       the set of codes to be used."/>
      <comments value="For value sets with a referenceResource, the display can contain the value set description.
        The reference may be version-specific or not."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/ValueSet"/>
      </type>
      <condition value="eld-10"/>
      <condition value="eld-12"/>
      <constraint>
        <key value="eld-12"/>
        <severity value="error"/>
        <human value="URI SHALL start with http:// or https:// urn:"/>
        <expression value="startsWith('http:') or startsWith('https') or startsWith('urn:')"/>
        <xpath value="starts-with(string(@value), 'http:') or starts-with(string(@value), 'https:') or starts-with(string(
        @value), 'urn:')"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="dex"/>
        <map value="valueDomain.valueSet"/>
      </mapping>
      <mapping>
        <identity value="loinc"/>
        <map value="CODE_TABLE"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="points to explicit list or expression that evaluates to list of (Enumerated_Value_Domain).member"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping"/>
      <short value="Map element to another set of definitions"/>
      <definition value="Identifies a concept from an external specification that roughly corresponds to this element."/>
      <comments value="Mappings are not necessarily specific enough for safe translation."/>
      <requirements value="Provides guidance to implementers familiar with or converting content from other specifications."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="dex"/>
        <map value="mappingSpecification"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Registered_item).document_reference[document_type=mapping]  Also, .meaning linkage to
         Data_Element_Concept is done as a mapping to a reference model.  (Data_Element_Concepts
         are all defined in some sort of reference model, be that Object_Class and Property or
         some other mechanism)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order to make the use of extensions safe and manageable, there is a
       strict set of governance  applied to the definition and use of extensions. Though any
       implementer is allowed to define an extension, there is a set of requirements that SHALL
       be met as part of the definition of the extension."/>
      <comments value="There can be no stigma associated with the use of extensions by any application, project,
       or standard - regardless of the institution or jurisdiction that uses or defines the extensions.
        The use of extensions is what allows the FHIR specification to retain a core level of
       simplicity for everyone."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.identity"/>
      <short value="Reference to mapping declaration"/>
      <definition value="An internal reference to the definition of a mapping."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.language"/>
      <short value="Computable language of mapping"/>
      <definition value="Identifies the computable language in which mapping.map is expressed."/>
      <comments value="If omitted, then there can be no expectation of computational interpretation of the mapping."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="The mime type of an attachment. Any valid mime type is allowed."/>
        <valueSetUri value="http://www.rfc-editor.org/bcp/bcp13.txt"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.map"/>
      <short value="Details of the mapping"/>
      <definition value="Expresses what part of the target specification corresponds to this element."/>
      <comments value="For most mappings, the syntax is undefined.  Syntax will be provided for mappings to the
       RIM.  Multiple mappings may be possible and may include constraints on other resource
       elements that identify when a particular mapping applies."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="ObjectClass, Property (this is one possible data model that can be mapped to - the uri
         would identify the data model  mappingSpecification.mappingScript"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element>
      <path value="ElementDefinition"/>
      <short value="Definition of an element in a resource or extension"/>
      <definition value="Captures constraints on each element within the resource, profile, or extension."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="eld-13"/>
        <severity value="error"/>
        <human value="Types must be unique by the combination of code and profile"/>
        <expression value="type.select(code+profile).distinct()"/>
        <xpath value="not(exists(for $type in f:type return $type/preceding-sibling::f:type[f:code/@value=$type/f:code/@va
        lue and f:profile/@value = $type/f:profile/@value]))"/>
      </constraint>
      <constraint>
        <key value="eld-14"/>
        <severity value="error"/>
        <human value="Constraints must be unique by key"/>
        <expression value="constraint.select(key).distinct()"/>
        <xpath value="count(f:constraint) = count(distinct-values(f:constraint/f:key/@value))"/>
      </constraint>
      <constraint>
        <key value="eld-11"/>
        <severity value="error"/>
        <human value="Binding can only be present for coded elements, string, and uri"/>
        <expression value="binding.empty() or type.code.empty() or type.select((code = 'code') or (code = 'Coding')
         or (code='CodeableConcept') or (code = 'Quantity') or (code = 'Extension') or (code =
         'string') or (code = 'uri')).exists()"/>
        <xpath value="not(exists(f:binding)) or (count(f:type/f:code) = 0) or  f:type/f:code/@value=('code','Coding','Code
        ableConcept','Quantity','Extension', 'string', 'uri')"/>
      </constraint>
      <constraint>
        <key value="eld-8"/>
        <severity value="error"/>
        <human value="Pattern and value are mutually exclusive"/>
        <expression value="pattern.empty() or fixed.empty()"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'pattern')])) or not(exists(f:*[starts-with(local-name(.),
         'value')]))"/>
      </constraint>
      <constraint>
        <key value="eld-15"/>
        <severity value="error"/>
        <human value="default value and meaningWhenMissing are mutually exclusive"/>
        <expression value="defaultValue.empty() or meaningWhenMissing.empty()"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'fixed')])) or not(exists(f:meaningWhenMissing))"/>
      </constraint>
      <constraint>
        <key value="eld-2"/>
        <severity value="error"/>
        <human value="Min &lt;= Max"/>
        <expression value="min.empty() or max.empty() or (max = '*') or (min &lt;= max.toInteger())"/>
        <xpath value="not(exists(f:min)) or not(exists(f:max)) or (not(f:max/@value) and not(f:min/@value))
         or (f:max/@value = '*') or (number(f:max/@value) &gt;= f:min/@value)"/>
      </constraint>
      <constraint>
        <key value="eld-7"/>
        <severity value="error"/>
        <human value="Pattern may only be specified if there is one type"/>
        <expression value="pattern.empty() or (type.count() = 1)"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'pattern')])) or (count(f:type)=1)"/>
      </constraint>
      <constraint>
        <key value="eld-6"/>
        <severity value="error"/>
        <human value="Fixed value may only be specified if there is one type"/>
        <expression value="fixed.empty() or (type.count() = 1)"/>
        <xpath value="not(exists(f:*[starts-with(local-name(.), 'fixed')])) or (count(f:type)=1)"/>
      </constraint>
      <constraint>
        <key value="eld-5"/>
        <severity value="error"/>
        <human value="if the element definition has a contentReference, it cannot have type, defaultValue, fixed,
         pattern, example, minValue, maxValue, maxLength, or binding"/>
        <expression value="contentReference.empty() or (type.empty() and defaultValue.empty() and fixed.empty() and
         pattern.empty() and example.empty() and minValue.empty() and maxValue.empty() and maxLength.empty()
         and binding.empty())"/>
        <xpath value="not(exists(f:contentReference) and (exists(f:type) or exists(f:*[starts-with(local-name(.),
         'value')]) or exists(f:*[starts-with(local-name(.), 'defaultValue')])  or exists(f:*[starts-with(loc
        al-name(.), 'fixed')]) or exists(f:*[starts-with(local-name(.), 'pattern')]) or exists(f:*[starts-wit
        h(local-name(.), 'example')]) or exists(f:*[starts-with(local-name(.), 'f:minValue')])
         or exists(f:*[starts-with(local-name(.), 'f:maxValue')]) or exists(f:maxLength) or exists(f:binding)
        ))"/>
      </constraint>
      <mapping>
        <identity value="dex"/>
        <map value="RetrieveMetadata response"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="Observation[classCode=OBS, moodCode=DEFN]"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Data_Element"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.path"/>
      <short value="The path of the element (see the Detailed Descriptions)"/>
      <definition value="The path identifies the element and is expressed as a &quot;.&quot;-separated list of
       ancestor elements, beginning with the name of the resource or extension."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Name, Identifier &amp; Context"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.representation"/>
      <short value="xmlAttr | xmlText | typeAttr | cdaText"/>
      <definition value="Codes that define how this element is represented in instances, when the deviation varies
       from the normal case."/>
      <comments value="This is rarely used except for special cases where the representation deviates from the
       normal, which is done only very reluctantly, and can only be done in the base standard
       (and profiles must reproduce what the base standard does)."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="How a property is represented on the wire."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/property-representation"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.name"/>
      <short value="Name for this particular element definition (reference target)"/>
      <definition value="The name of this element definition. This is a unique name referring to a specific set
       of constraints applied to this element, used to provide a name to different slices of
       the same element."/>
      <comments value="The name SHALL be unique within the structure within the context of the constrained resource
       element.  (Though to avoid confusion, uniqueness across all elements is recommended.)."/>
      <requirements value="May also be used for code generation purposes."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.label"/>
      <short value="Name for element to display with or prompt for element"/>
      <definition value="The text to display beside the element indicating its meaning or to use to prompt for
       the element in a user display or form."/>
      <comments value="Question and label serve similar purposes in they both can be used to prompt for capturing
       a data element.  Whether the question form or label form should be used will depend on
       the type of instrument being used to capture the information."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="./code/display"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.code"/>
      <short value="Defining code"/>
      <definition value="A code that provides the meaning for the element according to a particular terminology."/>
      <comments value="The data element definition and other constraints SHALL be a proper constraint on the
       meaning (as defined in the code system, including relationships) of any code listed here.
        Where multiple codes exist in a terminology that could correspond to the data element,
       the most granular code(s) should be selected, so long as they are not more restrictive
       than the data element itself."/>
      <requirements value="Links the meaning of an element to an external terminology."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Coding"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="example"/>
        <description value="Codes that indicate the meaning of a data element."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/observation-codes"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="loinc"/>
        <map value="LOINC_NUM"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.7"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./code (root or translation)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Data_Element).data_element_concept.identifier"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing"/>
      <short value="This element is sliced - slices follow"/>
      <definition value="Indicates that the element is sliced into a set of alternative definitions (i.e. in a
       structure definition, there are multiple different constraints on a single element in
       the base resource). Slicing can be used in any resource that has cardinality ..* on the
       base resource, or any resource with a choice of types. The set of slices is any elements
       that come after this in the element sequence that have the same path, until a shorter
       path occurs (the shorter path terminates the set)."/>
      <comments value="The first element in the sequence, the one that carries the slicing, is the unconstrained
       element, for reference purposes . This may include the unconstrained children."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Element"/>
      </type>
      <constraint>
        <key value="eld-1"/>
        <severity value="error"/>
        <human value="If there are no discriminators, there must be a definition"/>
        <expression value="discriminator or description"/>
        <xpath value="(f:discriminator) or (f:description)"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.discriminator"/>
      <short value="Element values that are used to distinguish the slices"/>
      <definition value="Designates which child elements are used to discriminate between the slices when processing
       an instance. If one or more discriminators are provided, the value of the child elements
       in the instance data SHALL completely distinguish which slice the element in the resource
       matches based on the allowed values for those elements in each of the slices."/>
      <comments value="If there is no discriminator, the content is hard to process, so this should be avoided.
       If the base element has a cardinality of ..1, and there is a choice of types, the discriminator
       most be &quot;@type&quot;."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.description"/>
      <short value="Text description of how slicing works (or not)"/>
      <definition value="A human-readable text description of how the slicing works. If there is no discriminator,
       this is required to be present to provide whatever information is possible about how the
       slices can be differentiated."/>
      <comments value="If it's really not possible to differentiate them, the design should be re-evaluated to
       make the content usable."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="eld-1"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.ordered"/>
      <short value="If elements must be in same order as slices"/>
      <definition value="If the matching elements have to occur in the same order as defined in the profile."/>
      <comments value="Order should only be required when it is a pressing concern for presentation. Profile
       authors should consider making the order a feature of the rules about the narrative, not
       the rules about the data - requiring ordered data makes the profile much less re-usable."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.slicing.rules"/>
      <short value="closed | open | openAtEnd"/>
      <definition value="Whether additional slices are allowed or not. When the slices are ordered, profile authors
       can also say that additional slices are only allowed at the end."/>
      <comments value="Allowing additional elements makes for a much for flexible template - it's open for use
       in wider contexts, but also means that the content of the resource is not closed, and
       applications have to decide how to handle content not described by the profile."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="How slices are interpreted when evaluating an instance."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-slicing-rules"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.short"/>
      <short value="Concise definition for xml presentation"/>
      <definition value="A concise description of what this element means (e.g. for use in autogenerated summaries)."/>
      <comments value="May change the term to provide language more appropriate to the context of the profile
       or to reflect slicing."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.definition"/>
      <short value="Full formal definition as narrative text"/>
      <definition value="Provides a complete explanation of the meaning of the data element for human readability.
        For the case of elements derived from existing elements (e.g. constraints), the definition
       SHALL be consistent with the base definition, but convey the meaning of the element in
       the particular context of use of the resource."/>
      <comments value="It is easy for a different definition to change the meaning of an element and this can
       have nasty downstream consequences. Please be careful when providing definitions."/>
      <requirements value="To allow a user to state the usage of an element in a particular context."/>
      <alias value="Description"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="TERM DEFINITION/DESCRIPTION(S)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.6, OM1.41"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./text"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Designatable_Item).definition.text  acceptability=preferred in default context"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.comments"/>
      <short value="Comments about the use of this element"/>
      <definition value="Explanatory notes and implementation guidance about the data element, including notes
       about how to use the data properly, exceptions to proper use, etc."/>
      <comments value="If it is possible to capture usage rules using constraints, that mechanism should be used
       in preference to this element."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="COMMENTS"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="NTE, OM.32, OM1.33, OM1.39"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./inboundRelationship[typeCode=SUBJ]/source[classCode=LIST, moodCode=EVN]/code"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Administered_Item).explanatory_comment"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.requirements"/>
      <short value="Why this resource has been created"/>
      <definition value="This element is for traceability of why the element was created and why the constraints
       exist as they do. This may be used to point to source materials or specifications that
       drove the structure of this element."/>
      <comments value="This element does not describe the usage of the element (that's done in comments), rather
       it's for traceability of *why* the element is either needed or why the constraints exist
       as they do.  This may be used to point to source materials or specifications that drove
       the structure of this data element."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="R/O/C"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="./inboundRelationship[typeCode=META]/source[classCode=ACT, moodCode=EVN, isCriterionInd=true]/reason
        Code/originalText"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Registered_item).document_reference[document_type=requirements].notation"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.alias"/>
      <short value="Other names"/>
      <definition value="Identifies additional names by which this element might also be known."/>
      <requirements value="Allows for better easier recognition of the element by multiple communities, including
       international communities."/>
      <alias value="synonym"/>
      <alias value="other name"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="RELATED NAMES (only some of these apply)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.8, OM1.52"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="Not currently expressible"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="(Designatable_Item).designation.sign  acceptability!=preferred or context is other than
         default"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.min"/>
      <short value="Minimum Cardinality"/>
      <definition value="The minimum number of times this element SHALL appear in the instance."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="integer"/>
      </type>
      <condition value="eld-2"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Minimum  size of  data element  values?"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.max"/>
      <short value="Maximum Cardinality (a number or *)"/>
      <definition value="The maximum number of times this element is permitted to appear in the instance."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="eld-3"/>
      <condition value="eld-2"/>
      <constraint>
        <key value="eld-3"/>
        <severity value="error"/>
        <human value="Max SHALL be a number or &quot;*&quot;"/>
        <expression value="max.empty() or (max = '*') or (max.toInteger() &gt;= 0)"/>
        <xpath value="@value='*' or (normalize-space(@value)!='' and normalize-space(translate(@value, '0123456789',''))='
        ')"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="OMC.10"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Maximum  size of  data element  values?"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base"/>
      <short value="Base definition information for tools"/>
      <definition value="Information about the base definition of the element, provided to make it unnecessary
       for tools to trace the deviation of the element through the derived and related profiles.
       This information is only provided where the element definition represents a constraint
       on another element definition, and must be present if there is a base element definition."/>
      <comments value="The base information does not carry any information that could not be determined from
       the path and related profiles, but making this determination requires both that the related
       profiles are available, and that the algorithm to determine them be available. So they
       are deformalised into this location for tooling convenience, and to ensure that the base
       information is available without dependencies."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Element"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.path"/>
      <short value="Path that identifies the base element"/>
      <definition value="The Path that identifies the base element - this matches the ElementDefinition.path for
       that element. Across FHIR, there is only one base definition of any element - that is,
       an element definition on a [[[StructureDefinition]]] without a StructureDefinition.base."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.min"/>
      <short value="Min cardinality of the base element"/>
      <definition value="Minimum cardinality of the base element identified by the path."/>
      <comments value="This is provided for consistency with max, and may affect code generation of mandatory
       elements of the base resource are generated differently (some reference implementations
       have done this)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="integer"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.base.max"/>
      <short value="Max cardinality of the base element"/>
      <definition value="Maximum cardinality of the base element identified by the path."/>
      <comments value="This is provided to code generation, since the wire representation in JSON differs depending
       on whether the base element has max &gt; 1. Also, some forms of code generation may differ."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.contentReference"/>
      <short value="Reference to definition of content for the element"/>
      <definition value="Identifies the identity of an element defined elsewhere in the profile whose content rules
       should be applied to the current element."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <condition value="eld-5"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name">
        <valueString value="TypeRef"/>
      </extension>
      <path value="ElementDefinition.type"/>
      <short value="Data type and Profile for this element"/>
      <definition value="The data type or resource that the value of this element is permitted to be."/>
      <comments value="The Type of the element can be left blank, in which case the type is inherited from the
       resource. The type can only be listed in this field if it is an allowed option in the
       base resource."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <condition value="eld-13"/>
      <constraint>
        <key value="eld-4"/>
        <severity value="error"/>
        <human value="Aggregation may only be specified if one of the allowed types for the element is a resource"/>
        <expression value="aggregation.empty() or (code = 'Reference')"/>
        <xpath value="not(exists(f:aggregation)) or exists(f:code[@value = 'Reference'])"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="dex"/>
        <map value="valueDomain.dataType"/>
      </mapping>
      <mapping>
        <identity value="loinc"/>
        <map value="HL7_V2_DATATYPE (translation required), HL7_V3_DATATYPE (translation required)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.3, OMC.9"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.data+Q14type"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.code"/>
      <short value="Name of Data type or Resource"/>
      <definition value="Name of Data type or Resource that is a(or the) type used for this element."/>
      <comments value="If the element is a reference to another resource, this element contains &quot;Reference&quot;,
       and the profile element refers to the profile of the allowed target of the resource, which
       may be a reference to the general definition of a resource (e.g. http://hl7.org/fhir/StructureDefini
      tion/Patient). There would be one pair of type/code for each allowed target resource type."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="Either a resource or a data type."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/defined-types"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="loinc"/>
        <map value="HL7_V2_DATATYPE (translation required), HL7_V3_DATATYPE (translation required)"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM1.3"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.data+Q14type"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.profile"/>
      <short value="Profile (StructureDefinition) to apply (or IG)"/>
      <definition value="Identifies a profile structure or implementation Guide that SHALL hold for resources or
       datatypes referenced as the type of this element. Can be a local reference - to another
       structure in this profile, or a reference to a structure in another profile. When more
       than one profile is specified, the content must conform to all of them. When an implementation
       guide is specified, the resource SHALL conform to at least one profile defined in the
       implementation guide."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="uri"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.aggregation"/>
      <short value="contained | referenced | bundled - how aggregated"/>
      <definition value="If the type is a reference to another resource, how the resource is or can be aggregated
       - is it a contained resource, or a reference, and if the context is a bundle, is it included
       in the bundle."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="code"/>
      </type>
      <condition value="eld-4"/>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="How resource references can be aggregated."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/resource-aggregation-mode"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.type.versioning"/>
      <short value="either | independent | specific"/>
      <definition value="Whether this reference needs to be version specific or version independent, or whetehr
       either can be used."/>
      <comments value="The base specification never makes a rule as to which form is allowed, but implementation
       guides may do this."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <defaultValueCode value="either"/>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="Whether a reference needs to be version specific or version independent, or whetehr either
         can be used"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/reference-version-rules"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.defaultValue[x]"/>
      <short value="Specified value if missing from instance"/>
      <definition value="The value that should be used if there is no value stated in the instance (e.g. 'if not
       otherwise specified, the abstract is false')."/>
      <comments value="Default values can only be specified on a resource, data type, or extension definition,
       and never in a profile that applies to one of these. Specifying a default value means
       that the property can never been unknown - it must always have a value. Further, the default
       value can never be changed. For these reasons, default values are (and should be) used
       extremely sparingly."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <condition value="eld-15"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.meaningWhenMissing"/>
      <short value="Implicit meaning when this element is missing"/>
      <definition value="The Implicit meaning that is to be understood when this element is missing (e.g. 'when
       this element is missing, the period is ongoing'."/>
      <comments value="Implicit meanings for missing values can only be specified on a resource, data type, or
       extension definition, and never in a profile that applies to one of these. An implicit
       meaning for a missing value can never be changed, and specifying one has the consequence
       that constraining its use in profiles eliminates use cases as possibilities, not merely
       moving them out of scope."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="markdown"/>
      </type>
      <condition value="eld-15"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.fixed[x]"/>
      <short value="Value must be exactly this"/>
      <definition value="Specifies a value that SHALL be exactly the value  for this element in the instance. For
       purposes of comparison, non-significant whitespace is ignored, and all values must be
       an exact match (case and accent sensitive). Missing elements/attributes must also be missing."/>
      <comments value="This is not recommended for Coding and CodeableConcept since these often have highly contextual
       properties such as version or display."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <condition value="eld-5"/>
      <condition value="eld-6"/>
      <condition value="eld-8"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="N/A (only relevant when constraining, which 11179 doesn't do)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.pattern[x]"/>
      <short value="Value must have at least these property values"/>
      <definition value="Specifies a value that the value in the instance SHALL follow - that is, any value in
       the pattern must be found in the instance. Other additional values may be found too. This
       is effectively constraint by example.  The values of elements present in the pattern must
       match exactly (case-sensitive, accent-sensitive, etc.)."/>
      <comments value="Mostly used for fixing values of CodeableConcept. At present, pattern[x] is not recommended
       as a basis for slicing while issues related to this are investigated during the DSTU period."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <condition value="eld-5"/>
      <condition value="eld-7"/>
      <condition value="eld-8"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.example[x]"/>
      <short value="Example value (as defined for type)"/>
      <definition value="A sample value for this element demonstrating the type of information that would typically
       be captured."/>
      <comments value="This will most commonly be present for data where it's not implicitly obvious from either
       the data type or value set what the values might be.  (I.e. Example values for dates or
       quantities would generally be unnecessary.)  If the example value is fully populated,
       the publication tool can generate an instance automatically."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="EXMPL_ANSWERS"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".example"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.minValue[x]"/>
      <short value="Minimum Allowed Value (for some types)"/>
      <definition value="The minimum allowed value for the element. The value is inclusive. This is allowed for
       the types date, dateTime, instant, time, decimal, integer, and Quantity."/>
      <comments value="Except for date/date/instant, the type of the minValue[x] SHALL be the same as the specified
       type of the element. For the date/dateTime/instant values, the type of minValue[x] SHALL
       be either the same, or a a [Duration](datatypes.html#duration) which specifies a relative
       time limit to the current time. The duration value is positive, and is subtracted from
       the current clock to determine the minimum allowable value.   A minimum value for a Quantity
       is interpreted as an canonical minimum - e.g. you cannot provide 100mg if the minimum
       value is 10g."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.maxValue[x]"/>
      <short value="Maximum Allowed Value (for some types)"/>
      <definition value="The maximum allowed value for the element. The value is inclusive. This is allowed for
       the types date, dateTime, instant, time, decimal, integer, and Quantity."/>
      <comments value="Except for date/date/instant, the type of the maxValue[x] SHALL be the same as the specified
       type of the element. For the date/dateTime/instant values, the type of maxValue[x] SHALL
       be either the same, or a a [Duration](datatypes.html#duration) which specifies a relative
       time limit to the current time. The duration value is positive, and is added to the current
       clock to determine the maximum allowable value.   A maximum value for a Quantity is interpreted
       as an canonical maximum - e.g. you cannot provide 10g if the maximum value is 50mg."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="integer"/>
      </type>
      <type>
        <code value="decimal"/>
      </type>
      <type>
        <code value="base64Binary"/>
      </type>
      <type>
        <code value="instant"/>
      </type>
      <type>
        <code value="string"/>
      </type>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="date"/>
      </type>
      <type>
        <code value="dateTime"/>
      </type>
      <type>
        <code value="time"/>
      </type>
      <type>
        <code value="code"/>
      </type>
      <type>
        <code value="oid"/>
      </type>
      <type>
        <code value="id"/>
      </type>
      <type>
        <code value="unsignedInt"/>
      </type>
      <type>
        <code value="positiveInt"/>
      </type>
      <type>
        <code value="markdown"/>
      </type>
      <type>
        <code value="Annotation"/>
      </type>
      <type>
        <code value="Attachment"/>
      </type>
      <type>
        <code value="Identifier"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Coding"/>
      </type>
      <type>
        <code value="Quantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <type>
        <code value="Period"/>
      </type>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="SampledData"/>
      </type>
      <type>
        <code value="Signature"/>
      </type>
      <type>
        <code value="HumanName"/>
      </type>
      <type>
        <code value="Address"/>
      </type>
      <type>
        <code value="ContactPoint"/>
      </type>
      <type>
        <code value="Timing"/>
      </type>
      <type>
        <code value="Reference"/>
      </type>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.maxLength"/>
      <short value="Max length for strings"/>
      <definition value="Indicates the maximum length in characters that is permitted to be present in conformant
       instances and which is expected to be supported by conformant consumers that support the
       element."/>
      <comments value="Receivers are not required to reject instances that exceed the maximum length.  The full
       length could be stored.  In some cases, data might be truncated, though truncation should
       be undertaken with care and an understanding of the consequences of doing so. If not specified,
       there is no conformance expectation for length support."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="integer"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="OMC.12"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.maximum_character_quantity"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.condition"/>
      <short value="Reference to invariant about presence"/>
      <definition value="A reference to an invariant that may make additional statements about the cardinality
       or value in the instance."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="id"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint"/>
      <short value="Condition that must evaluate to true"/>
      <definition value="Formal constraints such as co-occurrence and other constraints that can be computationally
       evaluated within the context of the instance."/>
      <comments value="Constraints should be declared on the &quot;context&quot; element - the lowest element
       in the hierarchy that is common to all nodes referenced by the constraint."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.constraint.key"/>
      <short value="Target of 'condition' reference above"/>
      <definition value="Allows identification of which elements have their cardinalities impacted by the constraint.
        Will not be referenced for constraints that do not affect cardinality."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
      <condition value="eld-14"/>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.requirements"/>
      <short value="Why this constraint is necessary or appropriate"/>
      <definition value="Description of why this constraint is necessary or appropriate."/>
      <comments value="To be used if the reason for the constraint may not be intuitive to all implementers."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.severity"/>
      <short value="error | warning"/>
      <definition value="Identifies the impact constraint violation has on the conformance of the instance."/>
      <comments value="This allows constraints to be asserted as &quot;shall&quot; (error) and &quot;should&quot;
       (warning)."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="SHALL applications comply with this constraint?"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/constraint-severity"/>
        </valueSetReference>
      </binding>
    </element>
    <element>
      <path value="ElementDefinition.constraint.human"/>
      <short value="Human description of constraint"/>
      <definition value="Text that can be used to describe the constraint in messages identifying that the constraint
       has been violated."/>
      <comments value="Should be expressed in business terms as much as possible."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.expression"/>
      <short value="FluentPath expression of constraint"/>
      <definition value="A [FluentPath](fluentpath.html) expression of constraint that can be executed to see if
       this constraint is met."/>
      <requirements value="Used by validation tooling tests of the validity of the resource."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.constraint.xpath"/>
      <short value="XPath expression of constraint"/>
      <definition value="An XPath expression of constraint that can be executed to see if this constraint is met."/>
      <comments value="Elements SHALL use &quot;f&quot; as the namespace prefix for the FHIR namespace, and &quot;x&quot;
       for the xhtml namespace, and SHALL NOT use any other prefixes."/>
      <requirements value="Used in Schematron tests of the validity of the resource."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="ElementDefinition.mustSupport"/>
      <short value="If the element must supported"/>
      <definition value="If true, implementations that produce or consume resources SHALL provide &quot;support&quot;
       for the element in some meaningful way.  If false, the element may be ignored and not
       supported."/>
      <comments value="&quot;Something useful&quot; is context dependent and impossible to describe in the base
       FHIR specification. For this reason, tue mustSupport flag is never set to true by the
       FHIR specification itself - it is only set to true in profiles.   This is done in [Resource
       Profiles](profiling.html#mustsupport), where the profile labels an element as mustSupport=true.
       When a profile does this, it SHALL also make clear exactly what kind of &quot;support&quot;
       is required, as this can mean many things.  Note that an element that has the property
       IsModifier is not necessarily a &quot;key&quot; element (e.g. one of the important elements
       to make use of the resource), nor is it automatically mustSupport - however both of these
       things are more likely to be true for IsModifier elements than for other elements."/>
      <requirements value="Allows a profile to set expectations for system capabilities beyond merely respecting
       cardinality constraints."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.isModifier"/>
      <short value="If this modifies the meaning of other elements"/>
      <definition value="If true, the value of this element affects the interpretation of the element or resource
       that contains it, and the value of the element cannot be ignored. Typically, this is used
       for status, negation and qualification codes. The effect of this is that the element cannot
       be ignored by systems: they SHALL either recognize the element and process it, and/or
       a pre-determination has been made that it is not relevant to their particular system."/>
      <comments value="Only the definition of an element can set IsModifier true - either the specification itself
       or where an extension is originally defined. Once set, it cannot be changed in derived
       profiles. An element/extension that has isModifier=true SHOULD also have a minimum cardinality
       of 1, so that there is no lack of clarity about what to do if it is missing. If it can
       be missing, the definition SHALL make the meaning of a missing element clear."/>
      <requirements value="Allows elements to be introduced into a specification that can't safely be ignored by
       applications that don't recognize them."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.isSummary"/>
      <short value="Include when _summary = true?"/>
      <definition value="Whether the element should be included if a client requests a search with the parameter
       _summary=true."/>
      <comments value="Some resources include a set of simple metadata, and some very large data. This element
       is used to reduce the quantity of data returned in searches. Note that servers may pre-cache
       summarized resources for optimal performance, so servers may not support per-profile use
       of the isSummary flag."/>
      <requirements value="Allow clients to search through large resources quickly."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="boolean"/>
      </type>
      <defaultValueBoolean value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="iso11179"/>
        <map value="??"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding"/>
      <short value="ValueSet details if this is coded"/>
      <definition value="Binds to a value set if this element is coded (code, Coding, CodeableConcept)."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Element"/>
      </type>
      <condition value="eld-11"/>
      <constraint>
        <key value="eld-10"/>
        <severity value="error"/>
        <human value="provide either a reference or a description (or both)"/>
        <expression value="valueSet or description"/>
        <xpath value="(exists(f:valueSetUri) or exists(f:valueSetReference)) or exists(f:description)"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="loinc"/>
        <map value="ANSWER LIST, NORMATIVE ANSWER LIST"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="OM3, OMC.11"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.strength"/>
      <short value="required | extensible | preferred | example"/>
      <definition value="Indicates the degree of conformance expectations associated with this binding - that is,
       the degree to which the provided value set must be adhered to in the instances."/>
      <comments value="For further discussion, see [[[Using Terminologies]]]."/>
      <alias value="conformance"/>
      <alias value="extensibility"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="Indication of the degree of conformance expectations associated with a binding."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/binding-strength"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="loinc"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="v2"/>
        <map value="N/A"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.description"/>
      <short value="Human explanation of the value set"/>
      <definition value="Describes the intended use of this particular set of codes."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <condition value="eld-10"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value=".domain.description"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.binding.valueSet[x]"/>
      <short value="Source of value set"/>
      <definition value="Points to the value set or external definition (e.g. implicit value set) that identifies
       the set of codes to be used."/>
      <comments value="For value sets with a referenceResource, the display can contain the value set description.
        The reference may be version-specific or not."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="uri"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/ValueSet"/>
      </type>
      <condition value="eld-10"/>
      <condition value="eld-12"/>
      <constraint>
        <key value="eld-12"/>
        <severity value="error"/>
        <human value="URI SHALL start with http:// or https:// urn:"/>
        <expression value="startsWith('http:') or startsWith('https') or startsWith('urn:')"/>
        <xpath value="starts-with(string(@value), 'http:') or starts-with(string(@value), 'https:') or starts-with(string(
        @value), 'urn:')"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="dex"/>
        <map value="valueDomain.valueSet"/>
      </mapping>
      <mapping>
        <identity value="loinc"/>
        <map value="CODE_TABLE"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="points to explicit list or expression that evaluates to list of (Enumerated_Value_Domain).member"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping"/>
      <short value="Map element to another set of definitions"/>
      <definition value="Identifies a concept from an external specification that roughly corresponds to this element."/>
      <comments value="Mappings are not necessarily specific enough for safe translation."/>
      <requirements value="Provides guidance to implementers familiar with or converting content from other specifications."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Element"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="dex"/>
        <map value="mappingSpecification"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="Registered_item).document_reference[document_type=mapping]  Also, .meaning linkage to
         Data_Element_Concept is done as a mapping to a reference model.  (Data_Element_Concepts
         are all defined in some sort of reference model, be that Object_Class and Property or
         some other mechanism)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.identity"/>
      <short value="Reference to mapping declaration"/>
      <definition value="An internal reference to the definition of a mapping."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="id"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.language"/>
      <short value="Computable language of mapping"/>
      <definition value="Identifies the computable language in which mapping.map is expressed."/>
      <comments value="If omitted, then there can be no expectation of computational interpretation of the mapping."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="code"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="The mime type of an attachment. Any valid mime type is allowed."/>
        <valueSetUri value="http://www.rfc-editor.org/bcp/bcp13.txt"/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
    </element>
    <element>
      <path value="ElementDefinition.mapping.map"/>
      <short value="Details of the mapping"/>
      <definition value="Expresses what part of the target specification corresponds to this element."/>
      <comments value="For most mappings, the syntax is undefined.  Syntax will be provided for mappings to the
       RIM.  Multiple mappings may be possible and may include constraints on other resource
       elements that identify when a particular mapping applies."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A (MIF territory)"/>
      </mapping>
      <mapping>
        <identity value="iso11179"/>
        <map value="ObjectClass, Property (this is one possible data model that can be mapped to - the uri
         would identify the data model  mappingSpecification.mappingScript"/>
      </mapping>
    </element>
  </differential>
</StructureDefinition>

Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.