Da Vinci - Coverage Requirements Discovery
2.2.1 - STU 2.2

Da Vinci - Coverage Requirements Discovery, published by HL7 International / Financial Management. This guide is not an authorized publication; it is the continuous build for version 2.2.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-crd/ and changes regularly. See the Directory of published versions

## Logical Model: CRD CDSHooks Request (Logical Definition) - XML Profile

Page standards status: Trial-use | Maturity Level: 4

XML representation of the CRDHooksRequest logical model.

Raw xml | Download

    <StructureDefinition xmlns="http://hl7.org/fhir">
      <id value="CRDHooksRequest"/>
      <language value="en"/>
      <text>
        <status value="extensions"/>
        <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition CRDHooksRequest</b></p><a name="CRDHooksRequest"> </a><a name="hcCRDHooksRequest"> </a><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px; width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; padding-top: 3px; padding-bottom: 3px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description &amp; Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64, " alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest">CDSHooksRequest</a><a name="CDSHooksRequest"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/tools/1.1.2/StructureDefinition-CDSHooksRequest.html">CDSHooksRequest</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Request for decision support</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_extension_simple.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Simple Extension" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.extension">extension</a><a name="CDSHooksRequest.extension"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/tools/1.1.2/StructureDefinition-CDSHooksExtensions.html">CDSHooksExtensions</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Extension</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_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-CRDHooksRequest-definitions.html#CDSHooksRequest.hook">hook</a><a name="CDSHooksRequest.hook"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Hook event triggering call<br class="binding"/><span style="font-weight:bold" title="null" class="binding">Binding: </span><a href="ValueSet-cdsHookType.html" title="http://hl7.org/fhir/us/davinci-crd/ValueSet/cdsHookType" class="binding">CDS Hook Types Value Set</a><span title="null" class="binding"> (</span><a href="http://hl7.org/fhir/R4/terminologies.html#required" title="To be conformant, the concept in this element SHALL be from the specified value set." class="binding">required</a><span title="null" class="binding">)</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.hookInstance">hookInstance</a><a name="CDSHooksRequest.hookInstance"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#uuid">uuid</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Unique id for hook invocation</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.fhirServer">fhirServer</a><a name="CDSHooksRequest.fhirServer"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..<span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#url">url</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Location to query for data</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.fhirAuthorization">fhirAuthorization</a><a name="CDSHooksRequest.fhirAuthorization"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..<span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/tools/1.1.2/StructureDefinition-CDSHooksElement.html">CDSHooksElement</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Auth to use in queries</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.fhirAuthorization.accessToken">accessToken</a><a name="CDSHooksRequest.fhirAuthorization.accessToken"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Auth token for query header</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.fhirAuthorization.tokenType">tokenType</a><a name="CDSHooksRequest.fhirAuthorization.tokenType"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Bearer</span></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.fhirAuthorization.expiresIn">expiresIn</a><a name="CDSHooksRequest.fhirAuthorization.expiresIn"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#integer">integer</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Seconds token is valid</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck110.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.fhirAuthorization.scope">scope</a><a name="CDSHooksRequest.fhirAuthorization.scope"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Granted access scopes</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck100.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.fhirAuthorization.subject" title="If the granted SMART scopes include patient scopes (i.e. 'patient/'), the access token is restricted to a specific patient. This field SHOULD be populated to identify the FHIR id of that patient.">subject</a><a name="CDSHooksRequest.fhirAuthorization.subject"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Patient id for access</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck10.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.context">context</a><a name="CDSHooksRequest.context"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/tools/1.1.2/StructureDefinition-CDSHookContext.html">CDSHookContext</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Context for decision support<br/>JSON: If<code>%resource.hook = 'appointment-book'</code>then the type is <code>http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookAppointmentBookContext</code><br/>JSON: If<code>%resource.hook = 'encounter-start'</code>then the type is <code>http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterStartContext</code><br/>JSON: If<code>%resource.hook = 'encounter-discharge'</code>then the type is <code>http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterDischargeContext</code><br/>JSON: If<code>%resource.hook = 'order-dispatch'</code>then the type is <code>http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDOrderDispatchContext</code><br/>JSON: If<code>%resource.hook = 'order-select'</code>then the type is <code>http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext</code><br/>JSON: If<code>%resource.hook = 'order-sign'</code>then the type is <code>http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext</code></td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck01.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.prefetch">prefetch</a><a name="CDSHooksRequest.prefetch"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Base</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Prefetch info requested by server</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck010.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.prefetch.key">key</a><a name="CDSHooksRequest.prefetch.key"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#code">code</a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Key as specfied in server prefetch config</td></tr>
    <tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck000.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-CRDHooksRequest-definitions.html#CDSHooksRequest.prefetch.value">value</a><a name="CDSHooksRequest.prefetch.value"> </a></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Resource</span></td><td style="vertical-align: top; text-align : var(--ig-left,left); background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Resource(s) matching prefetch criteria</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, " alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
      </text>
      <extension
                 url="http://hl7.org/fhir/tools/StructureDefinition/json-suppress-resourcetype">
        <valueBoolean value="true"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
        <valueCode value="fm"/>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
        <valueInteger value="4">
          <extension
                     url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
            <valueCanonical
                            value="http://hl7.org/fhir/us/davinci-crd/ImplementationGuide/davinci-crd"/>
          </extension>
        </valueInteger>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
        <valueCode value="trial-use">
          <extension
                     url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
            <valueCanonical
                            value="http://hl7.org/fhir/us/davinci-crd/ImplementationGuide/davinci-crd"/>
          </extension>
        </valueCode>
      </extension>
      <url
           value="http://hl7.org/fhir/us/davinci-crd/StructureDefinition/CRDHooksRequest"/>
      <identifier>
        <system value="urn:ietf:rfc:3986"/>
        <value value="urn:oid:2.16.840.1.113883.4.642.40.18.42.34"/>
      </identifier>
      <version value="2.2.1"/>
      <name value="CRDHooksRequest"/>
      <title value="CRD CDSHooks Request (Logical Definition)"/>
      <status value="active"/>
      <date value="2026-03-26T15:54:25+00:00"/>
      <publisher value="HL7 International / Financial Management"/>
      <contact>
        <telecom>
          <system value="url"/>
          <value value="http://www.hl7.org/Special/committees/fm"/>
        </telecom>
      </contact>
      <description
                   value="Defines CRD-specific constraints on the CDS Hooks Request logical model"/>
      <jurisdiction>
        <coding>
          <system value="urn:iso:std:iso:3166"/>
          <code value="US"/>
        </coding>
      </jurisdiction>
      <fhirVersion value="4.0.1"/>
      <kind value="logical"/>
      <abstract value="false"/>
      <type
            value="http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest"/>
      <baseDefinition
                      value="http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest"/>
      <derivation value="constraint"/>
      <snapshot>
        <extension
                   url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version">
          <valueString value="1.1.2"/>
        </extension>
        <element id="CDSHooksRequest">
          <path value="CDSHooksRequest"/>
          <short value="Request for decision support"/>
          <definition
                      value="The data structure that used when invoking a CDS Hook service"/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="Base"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <constraint>
            <key value="cds-r-1"/>
            <severity value="error"/>
            <human
                   value="if fhirAuthorization details are provided, a fhirServer SHALL be specified"/>
            <expression
                        value="fhirAuthorization.exists() implies fhirServer.exists()"/>
            <source
                    value="http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest"/>
          </constraint>
          <isModifier value="false"/>
        </element>
        <element id="CDSHooksRequest.extension">
          <path value="CDSHooksRequest.extension"/>
          <short value="Extension"/>
          <definition value="An Extension"/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksElement.extension"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code
                  value="http://hl7.org/fhir/tools/StructureDefinition/CDSHooksExtensions"/>
          </type>
        </element>
        <element id="CDSHooksRequest.hook">
          <path value="CDSHooksRequest.hook"/>
          <short value="Hook event triggering call"/>
          <definition value="The hook that triggered this CDS Service call"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.hook"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="code"/>
          </type>
          <mustSupport value="true"/>
          <binding>
            <strength value="required"/>
            <valueSet
                      value="http://hl7.org/fhir/us/davinci-crd/ValueSet/cdsHookType"/>
          </binding>
        </element>
        <element id="CDSHooksRequest.hookInstance">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/implied-string-prefix">
            <valueString value="urn:uuid:"/>
          </extension>
          <path value="CDSHooksRequest.hookInstance"/>
          <short value="Unique id for hook invocation"/>
          <definition
                      value="While working in the CDS Client, a user can perform multiple actions in series or in parallel. For example, a clinician might prescribe two drugs in a row; each prescription action would be assigned a unique hookInstance. This allows a CDS Service to uniquely identify each hook invocation"/>
          <comment
                   value="Note: the hookInstance is globally unique and should contain enough entropy to be un-guessable."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.hookInstance"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="uuid"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirServer">
          <path value="CDSHooksRequest.fhirServer"/>
          <short value="Location to query for data"/>
          <definition
                      value="The base URL of the CDS Client's FHIR server. If fhirAuthorization is provided, this field is REQUIRED. The scheme MUST be https when production data is exchanged"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirServer"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="url"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization">
          <path value="CDSHooksRequest.fhirAuthorization"/>
          <short value="Auth to use in queries"/>
          <definition
                      value="A structure holding an OAuth 2.0 bearer access token granting the CDS Service access to FHIR resources, along with supplemental information relating to the token"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirAuthorization"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code
                  value="http://hl7.org/fhir/tools/StructureDefinition/CDSHooksElement"/>
          </type>
          <constraint>
            <key value="cds-r-2"/>
            <severity value="error"/>
            <human
                   value="If the granted SMART scopes include patient scopes (i.e. 'patient/'), the patient field SHOULD be populated to identify the FHIR id of that patient."/>
            <expression
                        value="scope.contains('Patient/') implies patient.exists()"/>
            <source
                    value="http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest"/>
          </constraint>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.extension">
          <path value="CDSHooksRequest.fhirAuthorization.extension"/>
          <short value="Object that has Named Extension Properties"/>
          <definition
                      value="A JSON object that has properties where the names are defined by the extension definitions"/>
          <comment
                   value="Extension structures SHOULD use a strategy for naming that ensures global uniqueness, such as reverse-domain-name notation, e.g. com.cds-hooks.sandbox.myextension-practitionerspecialty. How to handle complex extensions (objects) is not defined"/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksElement.extension"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code
                  value="http://hl7.org/fhir/tools/StructureDefinition/CDSHooksExtensions"/>
          </type>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.accessToken">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/json-name">
            <valueString value="access_token"/>
          </extension>
          <path value="CDSHooksRequest.fhirAuthorization.accessToken"/>
          <short value="Auth token for query header"/>
          <definition
                      value="This is the OAuth 2.0 access token that provides access to the FHIR server"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirAuthorization.accessToken"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="string"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.tokenType">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/json-name">
            <valueString value="token_type"/>
          </extension>
          <path value="CDSHooksRequest.fhirAuthorization.tokenType"/>
          <short value="Bearer"/>
          <definition
                      value="The type of token provided.  (Present to support future extensibility)"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirAuthorization.tokenType"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="code"/>
          </type>
          <fixedCode value="Bearer"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.expiresIn">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/json-name">
            <valueString value="expires_in"/>
          </extension>
          <path value="CDSHooksRequest.fhirAuthorization.expiresIn"/>
          <short value="Seconds token is valid"/>
          <definition value="The lifetime in seconds of the access token."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirAuthorization.expiresIn"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="integer"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.scope">
          <path value="CDSHooksRequest.fhirAuthorization.scope"/>
          <short value="Granted access scopes"/>
          <definition value="The scopes the access token grants the CDS Service"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirAuthorization.scope"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="string"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.subject">
          <path value="CDSHooksRequest.fhirAuthorization.subject"/>
          <short value="Patient id for access"/>
          <definition
                      value="If the granted SMART scopes include patient scopes (i.e. 'patient/'), the access token is restricted to a specific patient. This field SHOULD be populated to identify the FHIR id of that patient."/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirAuthorization.subject"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="string"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.patient">
          <path value="CDSHooksRequest.fhirAuthorization.patient"/>
          <short value="OAuth 2.0 client identifier of the CDS Service"/>
          <definition
                      value="The OAuth 2.0 client identifier of the CDS Service, as registered with the CDS Client's authorization server"/>
          <min value="0"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.fhirAuthorization.patient"/>
            <min value="0"/>
            <max value="1"/>
          </base>
          <type>
            <code value="id"/>
          </type>
        </element>
        <element id="CDSHooksRequest.context">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'appointment-book'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookAppointmentBookContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'encounter-start'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookEncounterStartContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'encounter-discharge'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookEncounterDischargeContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'patient-view'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookPatientViewContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'order-dispatch'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookOrderDispatchContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'order-sign'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookOrderSignContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'order-select'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookOrderSelectContext"/>
            </extension>
          </extension>
          <path value="CDSHooksRequest.context"/>
          <short value="Context for decision support"/>
          <definition
                      value="Hook-specific contextual data that the CDS service will need"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.context"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code
                  value="http://hl7.org/fhir/tools/StructureDefinition/CDSHookContext"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.prefetch">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/json-property-key">
            <valueCode value="key"/>
          </extension>
          <path value="CDSHooksRequest.prefetch"/>
          <short value="Prefetch info requested by server"/>
          <definition
                      value="An object containing key/value pairs of FHIR queries that this Request is requesting the CDS Client to perform and provide on each Request call. The key is a string that describes the type of data being requested and the value is a string representing the FHIR query"/>
          <comment
                   value="While this is mustSupport, CRD clients are not required to pass any or all prefetch data requested by the CRD server."/>
          <min value="0"/>
          <max value="*"/>
          <base>
            <path value="CDSHooksRequest.prefetch"/>
            <min value="0"/>
            <max value="*"/>
          </base>
          <type>
            <code value="Base"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.prefetch.key">
          <path value="CDSHooksRequest.prefetch.key"/>
          <short value="Key as specfied in server prefetch config"/>
          <definition
                      value="Name of the FHIR query/read from the CDS Hooks Services object provided by the server"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.prefetch.key"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="code"/>
          </type>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.prefetch.value">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/json-nullable">
            <valueBoolean value="true"/>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/id-expectation">
            <valueCode value="optional"/>
          </extension>
          <path value="CDSHooksRequest.prefetch.value"/>
          <short value="Resource(s) matching prefetch criteria"/>
          <definition
                      value="What was found by executing the search or read requested by the CDS Hooks Service in the context of this particular hook invocation"/>
          <min value="1"/>
          <max value="1"/>
          <base>
            <path value="CDSHooksRequest.prefetch.value"/>
            <min value="1"/>
            <max value="1"/>
          </base>
          <type>
            <code value="Resource"/>
          </type>
          <mustSupport value="true"/>
        </element>
      </snapshot>
      <differential>
        <element id="CDSHooksRequest">
          <path value="CDSHooksRequest"/>
          <short value="Request for decision support"/>
        </element>
        <element id="CDSHooksRequest.extension">
          <path value="CDSHooksRequest.extension"/>
        </element>
        <element id="CDSHooksRequest.hook">
          <path value="CDSHooksRequest.hook"/>
          <short value="Hook event triggering call"/>
          <type>
            <code value="code"/>
          </type>
          <mustSupport value="true"/>
          <binding>
            <strength value="required"/>
            <valueSet
                      value="http://hl7.org/fhir/us/davinci-crd/ValueSet/cdsHookType"/>
          </binding>
        </element>
        <element id="CDSHooksRequest.hookInstance">
          <path value="CDSHooksRequest.hookInstance"/>
          <short value="Unique id for hook invocation"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirServer">
          <path value="CDSHooksRequest.fhirServer"/>
          <short value="Location to query for data"/>
          <min value="1"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization">
          <path value="CDSHooksRequest.fhirAuthorization"/>
          <short value="Auth to use in queries"/>
          <min value="1"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.accessToken">
          <path value="CDSHooksRequest.fhirAuthorization.accessToken"/>
          <short value="Auth token for query header"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.tokenType">
          <path value="CDSHooksRequest.fhirAuthorization.tokenType"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.expiresIn">
          <path value="CDSHooksRequest.fhirAuthorization.expiresIn"/>
          <short value="Seconds token is valid"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.scope">
          <path value="CDSHooksRequest.fhirAuthorization.scope"/>
          <short value="Granted access scopes"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.fhirAuthorization.subject">
          <path value="CDSHooksRequest.fhirAuthorization.subject"/>
          <short value="Patient id for access"/>
          <definition
                      value="If the granted SMART scopes include patient scopes (i.e. 'patient/'), the access token is restricted to a specific patient. This field SHOULD be populated to identify the FHIR id of that patient."/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.context">
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'appointment-book'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookAppointmentBookContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'encounter-start'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterStartContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'encounter-discharge'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterDischargeContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'order-dispatch'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDOrderDispatchContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'order-select'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext"/>
            </extension>
          </extension>
          <extension
                     url="http://hl7.org/fhir/tools/StructureDefinition/type-specifier">
            <extension url="condition">
              <valueString value="%resource.hook = 'order-sign'"/>
            </extension>
            <extension url="type">
              <valueCode
                         value="http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext"/>
            </extension>
          </extension>
          <path value="CDSHooksRequest.context"/>
          <short value="Context for decision support"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.prefetch">
          <path value="CDSHooksRequest.prefetch"/>
          <short value="Prefetch info requested by server"/>
          <comment
                   value="While this is mustSupport, CRD clients are not required to pass any or all prefetch data requested by the CRD server."/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.prefetch.key">
          <path value="CDSHooksRequest.prefetch.key"/>
          <short value="Key as specfied in server prefetch config"/>
          <mustSupport value="true"/>
        </element>
        <element id="CDSHooksRequest.prefetch.value">
          <path value="CDSHooksRequest.prefetch.value"/>
          <short value="Resource(s) matching prefetch criteria"/>
          <mustSupport value="true"/>
        </element>
      </differential>
    </StructureDefinition>