WHO SMART Trust
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This page is part of the Trust (v1.1.3: Release) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Logical Model: SmartHealthLinkPayload - XML Profile

Draft as of 2024-04-25

XML representation of the SmartHealthLinkPayload logical model.

Raw xml | Download



<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="SmartHealthLinkPayload"/>
  <text>
    <status value="extensions"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the the element can appear in the instance">Card.</a></th><th style="width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description &amp; Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-SmartHealthLinkPayload-definitions.html#SmartHealthLinkPayload" title="Smart Health Link Payload (DRAFT)

This logical model was taken from the SMART Health Link documentation &lt;https://docs.smarthealthit.org/smart-health-links/spec#construct-a-shlink-payload&gt; as if 30 November 2023.

A [[ SMART Health Link]] is generated from this payload according to the algorithm documented here &lt;https://docs.smarthealthit.org/smart-health-links/spec#example-shlink-generation&gt; to create a 

It is generated 

">SmartHealthLinkPayload</a><a name="SmartHealthLinkPayload"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://build.fhir.org/types.html#Base">Base</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Smart Health Link Payload (DRAFT)<br/><span style="font-weight:bold">Instances of this logical model are not marked to be the target of a Reference</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SmartHealthLinkPayload-definitions.html#SmartHealthLinkPayload.url" title="Manifest URL for this SHLink">url</a><a name="SmartHealthLinkPayload.url"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">url</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SmartHealthLinkPayload-definitions.html#SmartHealthLinkPayload.key" title="Decryption key for processing files returned in the manifest. 43 characters, consisting of 32 random bytes base64urlencoded.">key</a><a name="SmartHealthLinkPayload.key"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..1</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Decryption key for processing files returned in the manifest. 43 characters, consisting of 32 random bytes base64urlencoded.</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SmartHealthLinkPayload-definitions.html#SmartHealthLinkPayload.exp" title="Optional. Number representing expiration time in Epoch seconds, as a hint to help the SHL Receiving Application determine if this QR is stale. (Note: epoch times should be parsed into 64-bit numeric types.)">exp</a><a name="SmartHealthLinkPayload.exp"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Optional. Number representing expiration time in Epoch seconds, as a hint to help the SHL Receiving Application determine if this QR is stale. (Note: epoch times should be parsed into 64-bit numeric types.)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SmartHealthLinkPayload-definitions.html#SmartHealthLinkPayload.flag" title="Optional. String created by concatenating single-character flags in alphabetical order
  L Indicates the SHLink is intended for long-term use and manifest content can evolve over time
  P Indicates the SHLink requires a Passcode to resolves
  U Indicates the SHLink's url resolves to a single encrypted file accessible via GET, bypassing the manifest. SHALL NOT be used in combination with P.">flag</a><a name="SmartHealthLinkPayload.flag"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Optional. String created by concatenating single-character flags in alphabetical order
  L Indicates the SHLink is intended for long-term use and manifest content can evolve over time
  P Indicates the SHLink requires a Passcode to resolves
  U Indicates the SHLink's url resolves to a single encrypted file accessible via GET, bypassing the manifest. SHALL NOT be used in combination with P.</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SmartHealthLinkPayload-definitions.html#SmartHealthLinkPayload.label" title="Optional. String no longer than 80 characters that provides a short description of the data behind the SHLink.">label</a><a name="SmartHealthLinkPayload.label"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Optional. String no longer than 80 characters that provides a short description of the data behind the SHLink.</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck00.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="." style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <a href="StructureDefinition-SmartHealthLinkPayload-definitions.html#SmartHealthLinkPayload.v" title="Optional. Integer representing the SHLinks protocol version this SHLink conforms to. MAY be omitted when the default value (1) applies.">v</a><a name="SmartHealthLinkPayload.v"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..1</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Optional. Integer representing the SHLinks protocol version this SHLink conforms to. MAY be omitted when the default value (1) applies.</td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
  </text>
  <url
       value="http://smart.who.int/trust/StructureDefinition/SmartHealthLinkPayload"/>
  <version value="1.1.3"/>
  <name value="SmartHealthLinkPayload"/>
  <title value="Smart Health Link Payload (DRAFT)"/>
  <status value="draft"/>
  <date value="2024-04-25T23:33:19+00:00"/>
  <publisher value="WHO"/>
  <contact>
    <name value="WHO"/>
    <telecom>
      <system value="url"/>
      <value value="http://who.int"/>
    </telecom>
  </contact>
  <description
               value="Smart Health Link Payload (DRAFT)

This logical model was taken from the SMART Health Link documentation &lt;https://docs.smarthealthit.org/smart-health-links/spec#construct-a-shlink-payload&gt; as if 30 November 2023.

A [[ SMART Health Link]] is generated from this payload according to the algorithm documented here &lt;https://docs.smarthealthit.org/smart-health-links/spec#example-shlink-generation&gt; to create a 

It is generated 

"/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
    </coding>
  </jurisdiction>
  <fhirVersion value="4.0.1"/>
  <kind value="logical"/>
  <abstract value="false"/>
  <type
        value="http://smart.who.int/trust/StructureDefinition/SmartHealthLinkPayload"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Base"/>
  <derivation value="specialization"/>
  <snapshot>
    <element id="SmartHealthLinkPayload">
      <path value="SmartHealthLinkPayload"/>
      <short value="Smart Health Link Payload (DRAFT)"/>
      <definition
                  value="Smart Health Link Payload (DRAFT)

This logical model was taken from the SMART Health Link documentation &lt;https://docs.smarthealthit.org/smart-health-links/spec#construct-a-shlink-payload&gt; as if 30 November 2023.

A [[ SMART Health Link]] is generated from this payload according to the algorithm documented here &lt;https://docs.smarthealthit.org/smart-health-links/spec#example-shlink-generation&gt; to create a 

It is generated 

"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Base"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <isModifier value="false"/>
    </element>
    <element id="SmartHealthLinkPayload.url">
      <path value="SmartHealthLinkPayload.url"/>
      <short value="url"/>
      <definition value="Manifest URL for this SHLink"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="SmartHealthLinkPayload.url"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.key">
      <path value="SmartHealthLinkPayload.key"/>
      <short
             value="Decryption key for processing files returned in the manifest. 43 characters, consisting of 32 random bytes base64urlencoded."/>
      <definition
                  value="Decryption key for processing files returned in the manifest. 43 characters, consisting of 32 random bytes base64urlencoded."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="SmartHealthLinkPayload.key"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.exp">
      <path value="SmartHealthLinkPayload.exp"/>
      <short
             value="Optional. Number representing expiration time in Epoch seconds, as a hint to help the SHL Receiving Application determine if this QR is stale. (Note: epoch times should be parsed into 64-bit numeric types.)"/>
      <definition
                  value="Optional. Number representing expiration time in Epoch seconds, as a hint to help the SHL Receiving Application determine if this QR is stale. (Note: epoch times should be parsed into 64-bit numeric types.)"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SmartHealthLinkPayload.exp"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.flag">
      <path value="SmartHealthLinkPayload.flag"/>
      <short
             value="Optional. String created by concatenating single-character flags in alphabetical order
  L Indicates the SHLink is intended for long-term use and manifest content can evolve over time
  P Indicates the SHLink requires a Passcode to resolves
  U Indicates the SHLink's url resolves to a single encrypted file accessible via GET, bypassing the manifest. SHALL NOT be used in combination with P."/>
      <definition
                  value="Optional. String created by concatenating single-character flags in alphabetical order
  L Indicates the SHLink is intended for long-term use and manifest content can evolve over time
  P Indicates the SHLink requires a Passcode to resolves
  U Indicates the SHLink's url resolves to a single encrypted file accessible via GET, bypassing the manifest. SHALL NOT be used in combination with P."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SmartHealthLinkPayload.flag"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.label">
      <path value="SmartHealthLinkPayload.label"/>
      <short
             value="Optional. String no longer than 80 characters that provides a short description of the data behind the SHLink."/>
      <definition
                  value="Optional. String no longer than 80 characters that provides a short description of the data behind the SHLink."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SmartHealthLinkPayload.label"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.v">
      <path value="SmartHealthLinkPayload.v"/>
      <short
             value="Optional. Integer representing the SHLinks protocol version this SHLink conforms to. MAY be omitted when the default value (1) applies."/>
      <definition
                  value="Optional. Integer representing the SHLinks protocol version this SHLink conforms to. MAY be omitted when the default value (1) applies."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="SmartHealthLinkPayload.v"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
    </element>
  </snapshot>
  <differential>
    <element id="SmartHealthLinkPayload">
      <path value="SmartHealthLinkPayload"/>
      <short value="Smart Health Link Payload (DRAFT)"/>
      <definition
                  value="Smart Health Link Payload (DRAFT)

This logical model was taken from the SMART Health Link documentation &lt;https://docs.smarthealthit.org/smart-health-links/spec#construct-a-shlink-payload&gt; as if 30 November 2023.

A [[ SMART Health Link]] is generated from this payload according to the algorithm documented here &lt;https://docs.smarthealthit.org/smart-health-links/spec#example-shlink-generation&gt; to create a 

It is generated 

"/>
    </element>
    <element id="SmartHealthLinkPayload.url">
      <path value="SmartHealthLinkPayload.url"/>
      <short value="url"/>
      <definition value="Manifest URL for this SHLink"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.key">
      <path value="SmartHealthLinkPayload.key"/>
      <short
             value="Decryption key for processing files returned in the manifest. 43 characters, consisting of 32 random bytes base64urlencoded."/>
      <definition
                  value="Decryption key for processing files returned in the manifest. 43 characters, consisting of 32 random bytes base64urlencoded."/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.exp">
      <path value="SmartHealthLinkPayload.exp"/>
      <short
             value="Optional. Number representing expiration time in Epoch seconds, as a hint to help the SHL Receiving Application determine if this QR is stale. (Note: epoch times should be parsed into 64-bit numeric types.)"/>
      <definition
                  value="Optional. Number representing expiration time in Epoch seconds, as a hint to help the SHL Receiving Application determine if this QR is stale. (Note: epoch times should be parsed into 64-bit numeric types.)"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.flag">
      <path value="SmartHealthLinkPayload.flag"/>
      <short
             value="Optional. String created by concatenating single-character flags in alphabetical order
  L Indicates the SHLink is intended for long-term use and manifest content can evolve over time
  P Indicates the SHLink requires a Passcode to resolves
  U Indicates the SHLink's url resolves to a single encrypted file accessible via GET, bypassing the manifest. SHALL NOT be used in combination with P."/>
      <definition
                  value="Optional. String created by concatenating single-character flags in alphabetical order
  L Indicates the SHLink is intended for long-term use and manifest content can evolve over time
  P Indicates the SHLink requires a Passcode to resolves
  U Indicates the SHLink's url resolves to a single encrypted file accessible via GET, bypassing the manifest. SHALL NOT be used in combination with P."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.label">
      <path value="SmartHealthLinkPayload.label"/>
      <short
             value="Optional. String no longer than 80 characters that provides a short description of the data behind the SHLink."/>
      <definition
                  value="Optional. String no longer than 80 characters that provides a short description of the data behind the SHLink."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
    <element id="SmartHealthLinkPayload.v">
      <path value="SmartHealthLinkPayload.v"/>
      <short
             value="Optional. Integer representing the SHLinks protocol version this SHLink conforms to. MAY be omitted when the default value (1) applies."/>
      <definition
                  value="Optional. Integer representing the SHLinks protocol version this SHLink conforms to. MAY be omitted when the default value (1) applies."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="string"/>
      </type>
    </element>
  </differential>
</StructureDefinition>