Quality Measure Implementation Guide (STU3)
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Quality Measure Implementation Guide (STU3), published by Clinical Quality Information WG. This is not an authorized publication; it is the continuous build for version 3.0.0). This version is based on the current content of https://github.com/HL7/cqf-measures/ and changes regularly. See the Directory of published versions

Resource Profile: CQFMMeasure - XML Profile

Active as of 2019-02-13

XML representation of the measure-cqfm resource profile.

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<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="measure-cqfm"/>
  <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="http://hl7.org/fhir/R4/formats.html#table" 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="http://hl7.org/fhir/R4/formats.html#table" 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="http://hl7.org/fhir/R4/formats.html#table" 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="http://hl7.org/fhir/R4/formats.html#table" 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="http://hl7.org/fhir/R4/formats.html#table" title="Additional information about the element">Description &amp; Constraints</a><span style="float: right"><a href="http://hl7.org/fhir/R4/formats.html#table" title="Legend for this format"><img src="http://hl7.org/fhir/R4/help16.png" 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_resource.png" alt="." style="background-color: white; background-color: inherit" title="Resource" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure">Measure</a><a name="Measure"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/shareablemeasure.html">Shareable Measure</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">A quality measure definition</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_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-measure-cqfm-definitions.html#Measure.meta">meta</a><a name="Measure.meta"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..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 style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#Meta">Meta</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Metadata about the resource</span></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_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-measure-cqfm-definitions.html#Measure.meta.profile">profile</a><a name="Measure.meta.profile"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">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/references.html">canonical</a>(<a style="opacity: 0.5" href="http://hl7.org/fhir/R4/structuredefinition.html">StructureDefinition</a>)</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Profiles this resource claims to conform to</span><br/></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck14.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_slice_item.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Slice Item" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.extension:comment" title="Extension URL = http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-artifactComment">cqfm-artifactComment</a><a name="Measure.extension"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">(Complex)</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Additional documentation, review, or usage guidance</span><br/><span style="font-weight:bold">URL: </span><a href="http://hl7.org/fhir/R4/StructureDefinition-cqfm-artifactComment.html">http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-artifactComment</a><br/></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_bck14.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_slice_item.png" alt="." style="background-color: white; background-color: inherit" title="Slice Item" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.extension:allocation" title="Extension URL = http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-allocation">cqfm-allocation</a><a name="Measure.extension"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: 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#markdown">markdown</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Allocation guidance</span><br/><span style="font-weight:bold">URL: </span><a href="http://hl7.org/fhir/R4/StructureDefinition-cqfm-allocation.html">http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-allocation</a></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck14.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_slice_item.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Slice Item" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.extension:softwaresystem" title="Extension URL = http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-softwaresystem">cqfm-softwaresystem</a><a name="Measure.extension"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</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/references.html">Reference</a>(<a href="StructureDefinition-device-softwaresystem-cqfm.html">CQFM Device</a>)</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Extension</span><br/><span style="font-weight:bold">URL: </span><a href="http://hl7.org/fhir/R4/StructureDefinition-cqfm-softwaresystem.html">http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-softwaresystem</a><br/></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-measure-cqfm-definitions.html#Measure.library">library</a><a name="Measure.library"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span><span style="padding-left: 3px; padding-right: 3px; color: black; null" title="This element has or is affected by some invariants (cqm-2, cqm-2)">I</span></td><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/references.html">canonical</a>(<a href="StructureDefinition-library-cqfm.html">CQFM Library</a>)</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">CQFMMeasures are not required to use a Library, but if they do, it SHALL be a CQFMLibrary.<br/><span style="font-weight:bold">cqm-2: </span>Measures utilizing CQL SHALL reference one and only one CQL library (and that referenced library MUST be the primary library for the measure)</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_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.type">type</a><a name="Measure.type"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">process | outcome | structure | patient-reported-outcome | composite</span><br/><span style="font-weight:bold">Binding: </span><a href="http://terminology.hl7.org/3.1.0/ValueSet-measure-type.html">MeasureType</a> (<a href="http://hl7.org/fhir/R4/terminologies.html#extensible" title="To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated.  If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead.">extensible</a>)</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_bck11.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.group">group</a><a name="Measure.group"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: 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 style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Population criteria group</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_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-measure-cqfm-definitions.html#Measure.group.id">id</a><a name="Measure.group.id"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span><span style="padding-left: 3px; padding-right: 3px; color: black; null" title="This element has or is affected by some invariants (cqm-3, cqm-3)">I</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="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"><span style="opacity: 0.5">Unique id for inter-element referencing</span><br/><span style="font-weight:bold">cqm-3: </span>Group identifiers SHOULD use the convention: &quot;group-[group number]&quot;, where [group number] corresponds with the group naming convention for the criteria within the group</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_bck111.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-measure-cqfm-definitions.html#Measure.group.population">population</a><a name="Measure.group.population"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Population criteria</span><br/></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_bck1110.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_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-measure-cqfm-definitions.html#Measure.group.population.id">id</a><a name="Measure.group.population.id"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..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 style="opacity: 0.5" 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"><span style="opacity: 0.5">Unique id for inter-element referencing</span></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_bck1110.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_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-measure-cqfm-definitions.html#Measure.group.population.code">code</a><a name="Measure.group.population.code"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: 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 style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">initial-population | numerator | numerator-exclusion | denominator | denominator-exclusion | denominator-exception | measure-population | measure-population-exclusion | measure-observation</span><br/><span style="font-weight:bold">Binding: </span><a href="http://terminology.hl7.org/3.1.0/ValueSet-measure-population.html">MeasurePopulationType</a> (<a href="http://hl7.org/fhir/R4/terminologies.html#extensible" title="To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated.  If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead.">extensible</a>)</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1100.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_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.group.population.criteria" title="The name of a valid referenced CQL expression (MUST NOT be namespaced) that defines this population criteria.">criteria</a><a name="Measure.group.population.criteria"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span><span style="padding-left: 3px; padding-right: 3px; color: black; null" title="This element has or is affected by some invariants (cqm-4)">I</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#Expression">Expression</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">The criteria that defines this population</span><br/><span style="font-weight:bold">cqm-4: </span>Group population criteria SHOULD be simple expression names found within the primary library for the measure. The criteria SHOULD NOT include a namespace.</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_bck101.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-measure-cqfm-definitions.html#Measure.group.stratifier">stratifier</a><a name="Measure.group.stratifier"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: 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 style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Stratifier criteria for the measure</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_bck1010.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_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-measure-cqfm-definitions.html#Measure.group.stratifier.id">id</a><a name="Measure.group.stratifier.id"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">1..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 style="opacity: 0.5" 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"><span style="opacity: 0.5">Unique id for inter-element referencing</span></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_bck1000.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_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-measure-cqfm-definitions.html#Measure.group.stratifier.criteria" title="The name of a valid referenced CQL expression (MUST NOT be namespaced) that defines this stratifier criteria.">criteria</a><a name="Measure.group.stratifier.criteria"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span><span style="padding-left: 3px; padding-right: 3px; color: black; null" title="This element has or is affected by some invariants (cqm-5)">I</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#Expression">Expression</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">How the measure should be stratified</span><br/><span style="font-weight:bold">cqm-5: </span>Group stratifier criteria SHOULD be simple expression names found within the primary library for the measure. The criteria SHOULD NOT include a namespace.</td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck01.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.supplementalData">supplementalData</a><a name="Measure.supplementalData"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span><span style="padding-left: 3px; padding-right: 3px; color: black; null" title="This element has or is affected by some invariants (cqm-6)">I</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#BackboneElement">BackboneElement</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">What other data should be reported with the measure</span><br/><span style="font-weight:bold">cqm-6: </span>Supplemental data SHALL use either criteria or path</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_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: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.supplementalData.id">id</a><a name="Measure.supplementalData.id"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: 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 style="opacity: 0.5" 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"><span style="opacity: 0.5">Unique id for inter-element referencing</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_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: #F7F7F7; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-measure-cqfm-definitions.html#Measure.supplementalData.code">code</a><a name="Measure.supplementalData.code"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5" href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Meaning of the supplemental data</span><br/><span style="font-weight:bold">Binding: </span><a href="http://terminology.hl7.org/3.1.0/ValueSet-measure-data-usage.html">MeasureDataUsage</a> (<a href="http://hl7.org/fhir/R4/terminologies.html#extensible" title="To be conformant, the concept in this element SHALL be from the specified value set if any of the codes within the value set can apply to the concept being communicated.  If the value set does not cover the concept (based on human review), alternate codings (or, data type allowing, text) may be included instead.">extensible</a>)</td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="http://hl7.org/fhir/R4/formats.html#table" title="Legend for this format"><img src="http://hl7.org/fhir/R4/help16.png" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
  </text>
  <url
       value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/measure-cqfm"/>
  <version value="3.0.0"/>
  <name value="CQFMMeasure"/>
  <title value="CQFM Measure"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2019-02-13"/>
  <publisher value="Clinical Quality Information WG"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/cqi"/>
    </telecom>
  </contact>
  <description
               value="The CQFM Measure Profile describes minimum expectations for defining an electronic Clinical Quality Measure (eCQM)"/>
  <jurisdiction>
    <coding>
      <system value="urn:iso:std:iso:3166"/>
      <code value="US"/>
    </coding>
  </jurisdiction>
  <fhirVersion value="4.0.1"/>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM Mapping"/>
  </mapping>
  <mapping>
    <identity value="workflow"/>
    <uri value="http://hl7.org/fhir/workflow"/>
    <name value="Workflow Pattern"/>
  </mapping>
  <mapping>
    <identity value="w5"/>
    <uri value="http://hl7.org/fhir/fivews"/>
    <name value="FiveWs Pattern Mapping"/>
  </mapping>
  <mapping>
    <identity value="objimpl"/>
    <uri value="http://hl7.org/fhir/object-implementation"/>
    <name value="Object Implementation Information"/>
  </mapping>
  <kind value="resource"/>
  <abstract value="false"/>
  <type value="Measure"/>
  <baseDefinition
                  value="http://hl7.org/fhir/StructureDefinition/shareablemeasure"/>
  <derivation value="constraint"/>
  <snapshot>
    <element id="Measure">
      <path value="Measure"/>
      <short value="A quality measure definition"/>
      <definition
                  value="The Measure resource provides the definition of a quality measure."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <constraint>
        <key value="dom-2"/>
        <severity value="error"/>
        <human
               value="If the resource is contained in another resource, it SHALL NOT contain nested Resources"/>
        <expression value="contained.contained.empty()"/>
        <xpath value="not(parent::f:contained and f:contained)"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-3"/>
        <severity value="error"/>
        <human
               value="If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource"/>
        <expression
                    value="contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()"/>
        <xpath
               value="not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:reference/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-4"/>
        <severity value="error"/>
        <human
               value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated"/>
        <expression
                    value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"/>
        <xpath
               value="not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <key value="dom-5"/>
        <severity value="error"/>
        <human
               value="If a resource is contained in another resource, it SHALL NOT have a security label"/>
        <expression value="contained.meta.security.empty()"/>
        <xpath value="not(exists(f:contained/*/f:meta/f:security))"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">
          <valueBoolean value="true"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">
          <valueMarkdown
                         value="When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."/>
        </extension>
        <key value="dom-6"/>
        <severity value="warning"/>
        <human value="A resource should have narrative for robust management"/>
        <expression value="text.`div`.exists()"/>
        <xpath value="exists(f:text/h:div)"/>
        <source value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
      </constraint>
      <constraint>
        <key value="mea-0"/>
        <severity value="warning"/>
        <human
               value="Name should be usable as an identifier for the module by machine processing applications such as code generation"/>
        <expression value="name.matches('[A-Z]([A-Za-z0-9_]){0,254}')"/>
        <xpath
               value="not(exists(f:name/@value)) or matches(f:name/@value, '[A-Z]([A-Za-z0-9_]){0,254}')"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Measure"/>
      </constraint>
      <constraint>
        <key value="mea-1"/>
        <severity value="error"/>
        <human
               value="Stratifier SHALL be either a single criteria or a set of criteria components"/>
        <expression
                    value="group.stratifier.all((code | description | criteria).exists() xor component.exists())"/>
        <xpath
               value="exists(f:group/stratifier/code) or exists(f:group/stratifier/component)"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Measure"/>
      </constraint>
      <mustSupport value="false"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="Entity. Role, or Act"/>
      </mapping>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition"/>
      </mapping>
    </element>
    <element id="Measure.id">
      <path value="Measure.id"/>
      <short value="Logical id of this artifact"/>
      <definition
                  value="The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes."/>
      <comment
               value="The only time that a resource does not have an id is when it is being submitted to the server using a create operation."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.meta">
      <path value="Measure.meta"/>
      <short value="Metadata about the resource"/>
      <definition
                  value="The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Resource.meta"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Meta"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.meta.id">
      <path value="Measure.meta.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.meta.extension">
      <path value="Measure.meta.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <description value="Extensions are always sliced by (at least) url"/>
        <rules value="open"/>
      </slicing>
      <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. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               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>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.meta.versionId">
      <path value="Measure.meta.versionId"/>
      <short value="Version specific identifier"/>
      <definition
                  value="The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted."/>
      <comment
               value="The server assigns this value, and ignores what the client specifies, except in the case that the server is imposing version integrity on updates/deletes."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Meta.versionId"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.meta.lastUpdated">
      <path value="Measure.meta.lastUpdated"/>
      <short value="When the resource version last changed"/>
      <definition
                  value="When the resource last changed - e.g. when the version changed."/>
      <comment
               value="This value is always populated except when the resource is first being created. The server / resource manager sets this value; what a client provides is irrelevant. This is equivalent to the HTTP Last-Modified and SHOULD have the same value on a [read](http://hl7.org/fhir/R4/http.html#read) interaction."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Meta.lastUpdated"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="instant"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.meta.source">
      <path value="Measure.meta.source"/>
      <short value="Identifies where the resource comes from"/>
      <definition
                  value="A uri that identifies the source system of the resource. This provides a minimal amount of [Provenance](http://hl7.org/fhir/R4/provenance.html#) information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc."/>
      <comment
               value="In the provenance resource, this corresponds to Provenance.entity.what[x]. The exact use of the source (and the implied Provenance.entity.role) is left to implementer discretion. Only one nominated source is allowed; for additional provenance details, a full Provenance resource should be used. 

This element can be used to indicate where the current master source of a resource that has a canonical URL if the resource is no longer hosted at the canonical URL."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Meta.source"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.meta.profile">
      <path value="Measure.meta.profile"/>
      <short value="Profiles this resource claims to conform to"/>
      <definition
                  value="A list of profiles (references to [StructureDefinition](http://hl7.org/fhir/R4/structuredefinition.html#) resources) that this resource claims to conform to. The URL is a reference to [StructureDefinition.url](http://hl7.org/fhir/R4/structuredefinition-definitions.html#StructureDefinition.url)."/>
      <comment
               value="It is up to the server and/or other infrastructure of policy to determine whether/how these claims are verified and/or updated over time.  The list of profile URLs is a set."/>
      <requirements value="A measure must declare its profile."/>
      <min value="1"/>
      <max value="*"/>
      <base>
        <path value="Meta.profile"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="canonical"/>
        <targetProfile
                       value="http://hl7.org/fhir/StructureDefinition/StructureDefinition"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.meta.security">
      <path value="Measure.meta.security"/>
      <short value="Security Labels applied to this resource"/>
      <definition
                  value="Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure."/>
      <comment
               value="The security labels can be updated without changing the stated version of the resource. The list of security labels is a set. Uniqueness is based the system/code, and version and display are ignored."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Meta.security"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Coding"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SecurityLabels"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="extensible"/>
        <description
                     value="Security Labels from the Healthcare Privacy and Security Classification System."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/security-labels"/>
      </binding>
    </element>
    <element id="Measure.meta.tag">
      <path value="Measure.meta.tag"/>
      <short value="Tags applied to this resource"/>
      <definition
                  value="Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource."/>
      <comment
               value="The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Meta.tag"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Coding"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Tags"/>
        </extension>
        <strength value="example"/>
        <description
                     value="Codes that represent various types of tags, commonly workflow-related; e.g. &quot;Needs review by Dr. Jones&quot;."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/common-tags"/>
      </binding>
    </element>
    <element id="Measure.implicitRules">
      <path value="Measure.implicitRules"/>
      <short value="A set of rules under which this content was created"/>
      <definition
                  value="A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc."/>
      <comment
               value="Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.implicitRules"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.language">
      <path value="Measure.language"/>
      <short value="Language of the resource content"/>
      <definition value="The base language in which the resource is written."/>
      <comment
               value="Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Resource.language"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet">
          <valueCanonical value="http://hl7.org/fhir/ValueSet/all-languages"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Language"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="preferred"/>
        <description value="A human language."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/languages"/>
      </binding>
    </element>
    <element id="Measure.text">
      <path value="Measure.text"/>
      <short value="Text summary of the resource, for human interpretation"/>
      <definition
                  value="A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it &quot;clinically safe&quot; for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety."/>
      <comment
               value="Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary for data from legacy systems where information is captured as a &quot;text blob&quot; or where text is additionally entered raw or narrated and encoded information is added later."/>
      <alias value="narrative"/>
      <alias value="html"/>
      <alias value="xhtml"/>
      <alias value="display"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="DomainResource.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Narrative"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="Act.text?"/>
      </mapping>
    </element>
    <element id="Measure.contained">
      <path value="Measure.contained"/>
      <short value="Contained, inline Resources"/>
      <definition
                  value="These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope."/>
      <comment
               value="This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels."/>
      <alias value="inline resources"/>
      <alias value="anonymous resources"/>
      <alias value="contained resources"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.contained"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Resource"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.extension">
      <path value="Measure.extension"/>
      <slicing>
        <discriminator>
          <type value="value"/>
          <path value="url"/>
        </discriminator>
        <ordered value="false"/>
        <rules value="open"/>
      </slicing>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.extension:comment">
      <path value="Measure.extension"/>
      <sliceName value="comment"/>
      <short value="Additional documentation, review, or usage guidance"/>
      <definition
                  value="A comment containing additional documentation, a review comment, usage guidance, or other relevant information from a particular user."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-artifactComment"/>
      </type>
      <condition value="ele-1"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
    </element>
    <element id="Measure.extension:allocation">
      <path value="Measure.extension"/>
      <sliceName value="allocation"/>
      <short value="Allocation guidance"/>
      <definition
                  value="Specifies additional guidance for determining how the allocation for the measure specification should be performed."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="DomainResource.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-allocation"/>
      </type>
      <condition value="ele-1"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
    </element>
    <element id="Measure.extension:softwaresystem">
      <path value="Measure.extension"/>
      <sliceName value="softwaresystem"/>
      <short value="Extension"/>
      <definition
                  value="Specifies the software systems used in the packaging and testing of measure and library resources. Specifically to know which version of what software was used."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-softwaresystem"/>
      </type>
      <condition value="ele-1"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
    </element>
    <element id="Measure.modifierExtension">
      <path value="Measure.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               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."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="DomainResource.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.url">
      <path value="Measure.url"/>
      <short
             value="Canonical identifier for this measure, represented as a URI (globally unique)"/>
      <definition
                  value="An absolute URI that is used to identify this measure when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this measure is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the measure is stored on different servers."/>
      <comment
               value="Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred.  Multiple instances may share the same URL if they have a distinct version.

The determination of when to create a new version of a resource (same url, new version) vs. defining a new artifact is up to the author.  Considerations for making this decision are found in [Technical and Business Versions](http://hl7.org/fhir/resource.html#versions). 

In some cases, the resource can no longer be found at the stated url, but the url itself cannot change. Implementations can use the [meta.source](http://hl7.org/fhir/resource.html#meta) element to indicate where the current master source of the resource can be found."/>
      <requirements
                    value="Allows the measure to be referenced by a single globally unique identifier."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.url"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.url"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.identifier"/>
      </mapping>
    </element>
    <element id="Measure.identifier">
      <path value="Measure.identifier"/>
      <short value="Additional identifier for the measure"/>
      <definition
                  value="A formal identifier that is used to identify this measure when it is represented in other formats, or referenced in a specification, model, design or an instance."/>
      <comment
               value="Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this measure outside of FHIR, where it is not possible to use the logical URI."/>
      <requirements
                    value="Allows externally provided and/or usable business identifiers to be easily associated with the module."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.identifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Identifier"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.identifier"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.identifier"/>
      </mapping>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
    </element>
    <element id="Measure.version">
      <path value="Measure.version"/>
      <short value="Business version of the measure"/>
      <definition
                  value="The identifier that is used to identify this version of the measure when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the measure author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence. To provide a version consistent with the Decision Support Service specification, use the format Major.Minor.Revision (e.g. 1.0.0). For more information on versioning knowledge assets, refer to the Decision Support Service specification. Note that a version is required for non-experimental active artifacts."/>
      <comment
               value="There may be different measure instances that have the same identifier but different versions.  The version can be appended to the url in a reference to allow a reference to a particular business version of the measure with the format [url]|[version]."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.version"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.version"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.version"/>
      </mapping>
    </element>
    <element id="Measure.name">
      <path value="Measure.name"/>
      <short value="Name for this measure (computer friendly)"/>
      <definition
                  value="A natural language name identifying the measure. This name should be usable as an identifier for the module by machine processing applications such as code generation."/>
      <comment
               value="The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly."/>
      <requirements value="Support human navigation and code generation."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.name"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <condition value="inv-0"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.title">
      <path value="Measure.title"/>
      <short value="Name for this measure (human friendly)"/>
      <definition
                  value="A short, descriptive, user-friendly title for the measure."/>
      <comment
               value="This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.title"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.title"/>
      </mapping>
    </element>
    <element id="Measure.subtitle">
      <path value="Measure.subtitle"/>
      <short value="Subordinate title of the measure"/>
      <definition
                  value="An explanatory or alternate title for the measure giving additional information about its content."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.subtitle"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.status">
      <path value="Measure.status"/>
      <short value="draft | active | retired | unknown"/>
      <definition
                  value="The status of this measure. Enables tracking the life-cycle of the content."/>
      <comment
               value="Allows filtering of measures that are appropriate for use versus not."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.status"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="This is labeled as &quot;Is Modifier&quot; because applications should not use a retired {{title}} without due consideration"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="PublicationStatus"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="required"/>
        <description value="The lifecycle status of an artifact."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/publication-status|4.0.1"/>
      </binding>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.status"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.status"/>
      </mapping>
    </element>
    <element id="Measure.experimental">
      <path value="Measure.experimental"/>
      <short value="For testing purposes, not real usage"/>
      <definition
                  value="A Boolean value to indicate that this measure is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage."/>
      <comment
               value="Allows filtering of measures that are appropriate for use versus not."/>
      <requirements
                    value="Enables experimental content to be developed following the same lifecycle that would be used for a production-level measure."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.experimental"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.experimental"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.class"/>
      </mapping>
    </element>
    <element id="Measure.subject[x]">
      <path value="Measure.subject[x]"/>
      <short
             value="E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device"/>
      <definition
                  value="The intended subjects for the measure. If this element is not provided, a Patient subject is assumed, but the subject of the measure can be anything."/>
      <comment
               value="The subject of the measure is critical in interpreting the criteria definitions, as the logic in the measures is evaluated with respect to a particular subject. This corresponds roughly to the notion of a Compartment in that it limits what content is available based on its relationship to the subject. In CQL, this corresponds to the context declaration."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.subject[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Reference"/>
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group"/>
      </type>
      <meaningWhenMissing value="Patient"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SubjectType"/>
        </extension>
        <strength value="extensible"/>
        <description
                     value="The possible types of subjects for a measure (E.g. Patient, Practitioner, Organization, Location, etc.)."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/subject-type"/>
      </binding>
    </element>
    <element id="Measure.date">
      <path value="Measure.date"/>
      <short value="Date last changed"/>
      <definition
                  value="The date  (and optionally time) when the measure was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the measure changes."/>
      <comment
               value="Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the measure. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource."/>
      <alias value="Revision Date"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.date"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="dateTime"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.date"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.recorded"/>
      </mapping>
    </element>
    <element id="Measure.publisher">
      <path value="Measure.publisher"/>
      <short value="Name of the publisher (organization or individual)"/>
      <definition
                  value="The name of the organization or individual that published the measure."/>
      <comment
               value="Usually an organization but may be an individual. The publisher (or steward) of the measure is the organization or individual primarily responsible for the maintenance and upkeep of the measure. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the measure. This item SHOULD be populated unless the information is available from context."/>
      <requirements
                    value="Helps establish the &quot;authority/credibility&quot; of the measure.  May also allow for contact."/>
      <alias value="steward"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.publisher"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.publisher"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.witness"/>
      </mapping>
    </element>
    <element id="Measure.contact">
      <path value="Measure.contact"/>
      <short value="Contact details for the publisher"/>
      <definition
                  value="Contact details to assist a user in finding and communicating with the publisher."/>
      <comment
               value="May be a web site, an email address, a telephone number, etc."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.contact"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="ContactDetail"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.contact"/>
      </mapping>
    </element>
    <element id="Measure.description">
      <path value="Measure.description"/>
      <short value="Natural language description of the measure"/>
      <definition
                  value="A free text natural language description of the measure from a consumer's perspective."/>
      <comment
               value="This description can be used to capture details such as why the measure was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the measure as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the measure is presumed to be the predominant language in the place the measure was created)."/>
      <alias value="scope"/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.description"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.description"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.useContext">
      <path value="Measure.useContext"/>
      <short value="The context that the content is intended to support"/>
      <definition
                  value="The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate measure instances."/>
      <comment
               value="When multiple useContexts are specified, there is no expectation that all or any of the contexts apply."/>
      <requirements value="Assist in searching for appropriate content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.useContext"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="UsageContext"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.useContext"/>
      </mapping>
    </element>
    <element id="Measure.jurisdiction">
      <path value="Measure.jurisdiction"/>
      <short value="Intended jurisdiction for measure (if applicable)"/>
      <definition
                  value="A legal or geographic region in which the measure is intended to be used."/>
      <comment
               value="It may be possible for the measure to be used in jurisdictions other than those for which it was originally designed or intended."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.jurisdiction"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Jurisdiction"/>
        </extension>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding">
          <valueBoolean value="true"/>
        </extension>
        <strength value="extensible"/>
        <description
                     value="Countries and regions within which this artifact is targeted for use."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/jurisdiction"/>
      </binding>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.jurisdiction"/>
      </mapping>
    </element>
    <element id="Measure.purpose">
      <path value="Measure.purpose"/>
      <short value="Why this measure is defined"/>
      <definition
                  value="Explanation of why this measure is needed and why it has been designed as it has."/>
      <comment
               value="This element does not describe the usage of the measure. Instead, it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is.  This may be used to point to source materials or specifications that drove the structure of this measure."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.purpose"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.purpose"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="FiveWs.why[x]"/>
      </mapping>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
    </element>
    <element id="Measure.usage">
      <path value="Measure.usage"/>
      <short value="Describes the clinical usage of the measure"/>
      <definition
                  value="A detailed description, from a clinical perspective, of how the measure is used."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.usage"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.copyright">
      <path value="Measure.copyright"/>
      <short value="Use and/or publishing restrictions"/>
      <definition
                  value="A copyright statement relating to the measure and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the measure."/>
      <requirements
                    value="Consumers must be able to determine any legal restrictions on the use of the measure and/or its content."/>
      <alias value="License"/>
      <alias value="Restrictions"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.copyright"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.copyright"/>
      </mapping>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
    </element>
    <element id="Measure.approvalDate">
      <path value="Measure.approvalDate"/>
      <short value="When the measure was approved by publisher"/>
      <definition
                  value="The date on which the resource content was approved by the publisher. Approval happens once when the content is officially approved for usage."/>
      <comment
               value="The 'date' element may be more recent than the approval date because of minor changes or editorial corrections."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.approvalDate"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="date"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.approvalDate"/>
      </mapping>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
    </element>
    <element id="Measure.lastReviewDate">
      <path value="Measure.lastReviewDate"/>
      <short value="When the measure was last reviewed"/>
      <definition
                  value="The date on which the resource content was last reviewed. Review happens periodically after approval but does not change the original approval date."/>
      <comment
               value="If specified, this date follows the original approval date."/>
      <requirements
                    value="Gives a sense of how &quot;current&quot; the content is.  Resources that have not been reviewed in a long time may have a risk of being less appropriate/relevant."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.lastReviewDate"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="date"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.lastReviewDate"/>
      </mapping>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
    </element>
    <element id="Measure.effectivePeriod">
      <path value="Measure.effectivePeriod"/>
      <short value="When the measure is expected to be used"/>
      <definition
                  value="The period during which the measure content was or is planned to be in active use."/>
      <comment
               value="The effective period for a measure  determines when the content is applicable for usage and is independent of publication and review dates. For example, a measure intended to be used for the year 2016 might be published in 2015."/>
      <requirements
                    value="Allows establishing a transition before a resource comes into effect and also allows for a sunsetting  process when new versions of the measure are or are expected to be used instead."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.effectivePeriod"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Period"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="workflow"/>
        <map value="Definition.effectivePeriod"/>
      </mapping>
      <mapping>
        <identity value="objimpl"/>
        <map value="no-gen-base"/>
      </mapping>
    </element>
    <element id="Measure.topic">
      <path value="Measure.topic"/>
      <short
             value="The category of the measure, such as Education, Treatment, Assessment, etc."/>
      <definition
                  value="Descriptive topics related to the content of the measure. Topics provide a high-level categorization grouping types of measures that can be useful for filtering and searching."/>
      <requirements
                    value="Repositories must be able to determine how to categorize the measure so that it can be found by topical searches."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.topic"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="DefinitionTopic"/>
        </extension>
        <strength value="example"/>
        <description
                     value="High-level categorization of the definition, used for searching, sorting, and filtering."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/definition-topic"/>
      </binding>
    </element>
    <element id="Measure.author">
      <path value="Measure.author"/>
      <short value="Who authored the content"/>
      <definition
                  value="An individiual or organization primarily involved in the creation and maintenance of the content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.author"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="ContactDetail"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value=".participation[typeCode=AUT]"/>
      </mapping>
    </element>
    <element id="Measure.editor">
      <path value="Measure.editor"/>
      <short value="Who edited the content"/>
      <definition
                  value="An individual or organization primarily responsible for internal coherence of the content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.editor"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="ContactDetail"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.reviewer">
      <path value="Measure.reviewer"/>
      <short value="Who reviewed the content"/>
      <definition
                  value="An individual or organization primarily responsible for review of some aspect of the content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.reviewer"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="ContactDetail"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map
             value=".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer or endorser}"/>
      </mapping>
    </element>
    <element id="Measure.endorser">
      <path value="Measure.endorser"/>
      <short value="Who endorsed the content"/>
      <definition
                  value="An individual or organization responsible for officially endorsing the content for use in some setting."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.endorser"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="ContactDetail"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map
             value=".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer or endorser}"/>
      </mapping>
    </element>
    <element id="Measure.relatedArtifact">
      <path value="Measure.relatedArtifact"/>
      <short value="Additional documentation, citations, etc."/>
      <definition
                  value="Related artifacts such as additional documentation, justification, or bibliographic references."/>
      <comment
               value="Each related artifact is either an attachment, or a reference to another resource, but not both."/>
      <requirements
                    value="Measures must be able to provide enough information for consumers of the content (and/or interventions or results produced by the content) to be able to determine and understand the justification for and evidence in support of the content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.relatedArtifact"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="RelatedArtifact"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.library">
      <path value="Measure.library"/>
      <short
             value="CQFMMeasures are not required to use a Library, but if they do, it SHALL be a CQFMLibrary."/>
      <definition
                  value="A reference to a Library resource containing the formal logic used by the measure."/>
      <requirements
                    value="A computable measure MUST provide one primary library reference containing population criteria definitions for the measure."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.library"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="canonical"/>
        <targetProfile
                       value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/library-cqfm"/>
      </type>
      <condition value="cqm-2"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="cqm-2"/>
        <severity value="warning"/>
        <human
               value="Measures utilizing CQL SHALL reference one and only one CQL library (and that referenced library MUST be the primary library for the measure)"/>
        <expression value="exists()"/>
        <xpath value="exists(f)"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.disclaimer">
      <path value="Measure.disclaimer"/>
      <short value="Disclaimer for use of the measure or its referenced content"/>
      <definition
                  value="Notices and disclaimers regarding the use of the measure or related to intellectual property (such as code systems) referenced by the measure."/>
      <requirements
                    value="Some organizations require that notices and disclosures be included when publishing measures that reference their intellecutal property."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.disclaimer"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.scoring">
      <path value="Measure.scoring"/>
      <short value="proportion | ratio | continuous-variable | cohort"/>
      <definition
                  value="Indicates how the calculation is performed for the measure, including proportion, ratio, continuous-variable, and cohort. The value set is extensible, allowing additional measure scoring types to be represented."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.scoring"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="MeasureScoring"/>
        </extension>
        <strength value="extensible"/>
        <description value="The scoring type of the measure."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/measure-scoring"/>
      </binding>
    </element>
    <element id="Measure.compositeScoring">
      <path value="Measure.compositeScoring"/>
      <short value="opportunity | all-or-nothing | linear | weighted"/>
      <definition
                  value="If this is a composite measure, the scoring method used to combine the component measures to determine the composite score."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.compositeScoring"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="CompositeMeasureScoring"/>
        </extension>
        <strength value="extensible"/>
        <description value="The composite scoring method of the measure."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/composite-measure-scoring"/>
      </binding>
    </element>
    <element id="Measure.type">
      <path value="Measure.type"/>
      <short
             value="process | outcome | structure | patient-reported-outcome | composite"/>
      <definition
                  value="Indicates whether the measure is used to examine a process, an outcome over time, a patient-reported outcome, or a structure measure such as utilization."/>
      <requirements value="A measure must indicate the type of the measure."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.type"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <strength value="extensible"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/measure-type"/>
      </binding>
    </element>
    <element id="Measure.riskAdjustment">
      <path value="Measure.riskAdjustment"/>
      <short value="How risk adjustment is applied for this measure"/>
      <definition
                  value="A description of the risk adjustment factors that may impact the resulting score for the measure and how they may be accounted for when computing and reporting measure results."/>
      <comment
               value="Describes the method of adjusting for clinical severity and conditions present at the start of care that can influence patient outcomes for making valid comparisons of outcome measures across providers. Indicates whether a measure is subject to the statistical process for reducing, removing, or clarifying the influences of confounding factors to allow for more useful comparisons."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.riskAdjustment"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.rateAggregation">
      <path value="Measure.rateAggregation"/>
      <short value="How is rate aggregation performed for this measure"/>
      <definition
                  value="Describes how to combine the information calculated, based on logic in each of several populations, into one summarized result."/>
      <comment
               value="The measure rate for an organization or clinician is based upon the entities’ aggregate data and summarizes the performance of the entity over a given time period (e.g., monthly, quarterly, yearly). The aggregated data are derived from the results of a specific measure algorithm and, if appropriate, the application of specific risk adjustment models.  Can also be used to describe how to risk adjust the data based on supplemental data elements described in the eMeasure (e.g., pneumonia hospital measures antibiotic selection in the ICU versus non-ICU and then the roll-up of the two). This could be applied to aggregated cohort measure definitions (e.g., CDC's aggregate reporting for TB at the state level)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.rateAggregation"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.rationale">
      <path value="Measure.rationale"/>
      <short value="Detailed description of why the measure exists"/>
      <definition
                  value="Provides a succinct statement of the need for the measure. Usually includes statements pertaining to importance criterion: impact, gap in care, and evidence."/>
      <requirements
                    value="Measure developers need to be able to provide a detailed description of the purpose of the measure. This element provides detailed rationale, where the purpose element provides a summary of the rationale."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.rationale"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.clinicalRecommendationStatement">
      <path value="Measure.clinicalRecommendationStatement"/>
      <short value="Summary of clinical guidelines"/>
      <definition
                  value="Provides a summary of relevant clinical guidelines or other clinical recommendations supporting the measure."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.clinicalRecommendationStatement"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.improvementNotation">
      <path value="Measure.improvementNotation"/>
      <short value="increase | decrease"/>
      <definition
                  value="Information on whether an increase or decrease in score is the preferred result (e.g., a higher score indicates better quality OR a lower score indicates better quality OR quality is within a range)."/>
      <requirements
                    value="Measure consumers and implementers must be able to determine how to interpret a measure score."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.improvementNotation"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="MeasureImprovementNotation"/>
        </extension>
        <strength value="required"/>
        <description
                     value="Observation values that indicate what change in a measurement value or score is indicative of an improvement in the measured item or scored issue."/>
        <valueSet
                  value="http://hl7.org/fhir/ValueSet/measure-improvement-notation|4.0.1"/>
      </binding>
    </element>
    <element id="Measure.definition">
      <path value="Measure.definition"/>
      <short value="Defined terms used in the measure documentation"/>
      <definition
                  value="Provides a description of an individual term used within the measure."/>
      <requirements
                    value="Measure developers must be able to provide precise definitions of terms used within measure descriptions and guidance to help communicate the intent of the measure."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.definition"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.guidance">
      <path value="Measure.guidance"/>
      <short value="Additional guidance for implementers"/>
      <definition
                  value="Additional guidance for the measure including how it can be used in a clinical context, and the intent of the measure."/>
      <requirements
                    value="Measure developers must be able to provide additional guidance for implementers to understand the intent with greater specificity than that provided in the population criteria of the measure. This element provides detailed guidance, where the usage element provides a summary of the guidance."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.guidance"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="markdown"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="true"/>
    </element>
    <element id="Measure.group">
      <path value="Measure.group"/>
      <short value="Population criteria group"/>
      <definition value="A group of population criteria for the measure."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.group"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.id">
      <path value="Measure.group.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <condition value="cqm-3"/>
      <constraint>
        <key value="cqm-3"/>
        <severity value="warning"/>
        <human
               value="Group identifiers SHOULD use the convention: &quot;group-[group number]&quot;, where [group number] corresponds with the group naming convention for the criteria within the group"/>
        <expression value="value.startsWith('group-')"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.extension">
      <path value="Measure.group.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. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               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>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.modifierExtension">
      <path value="Measure.group.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               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."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.group.code">
      <path value="Measure.group.code"/>
      <short value="Meaning of the group"/>
      <definition
                  value="Indicates a meaning for the group. This can be as simple as a unique identifier, or it can establish meaning in a broader context by drawing from a terminology, allowing groups to be correlated across measures."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.description">
      <path value="Measure.group.description"/>
      <short value="Summary description"/>
      <definition
                  value="The human readable description of this population group."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.description"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.population">
      <path value="Measure.group.population"/>
      <short value="Population criteria"/>
      <definition value="A population criteria for the measure."/>
      <requirements
                    value="A measure must specify at least one population or composite calculation for each population group."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.group.population"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.population.id">
      <path value="Measure.group.population.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <requirements
                    value="A measure must specify at least one population or composite calculation for each population group."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.population.extension">
      <path value="Measure.group.population.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. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               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>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.population.modifierExtension">
      <path value="Measure.group.population.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               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."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.group.population.code">
      <path value="Measure.group.population.code"/>
      <short
             value="initial-population | numerator | numerator-exclusion | denominator | denominator-exclusion | denominator-exception | measure-population | measure-population-exclusion | measure-observation"/>
      <definition value="The type of population criteria."/>
      <requirements
                    value="A measure must specify the type of population criteria."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.population.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <strength value="extensible"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/measure-population"/>
      </binding>
    </element>
    <element id="Measure.group.population.description">
      <path value="Measure.group.population.description"/>
      <short value="The human readable description of this population criteria"/>
      <definition
                  value="The human readable description of this population criteria."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.population.description"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.population.criteria">
      <path value="Measure.group.population.criteria"/>
      <short value="The criteria that defines this population"/>
      <definition
                  value="The name of a valid referenced CQL expression (MUST NOT be namespaced) that defines this population criteria."/>
      <comment
               value="In the case of a continuous-variable or ratio measure, this may be the name of a function that calculates the value of the individual observation for each patient or event in the population. For these types of measures, individual observations are reported as observation resources included in the evaluatedResources bundle for each patient. See the MeasureReport resource or the Quality Reporting topic for more information."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.population.criteria"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Expression"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="cqm-4"/>
        <severity value="warning"/>
        <human
               value="Group population criteria SHOULD be simple expression names found within the primary library for the measure. The criteria SHOULD NOT include a namespace."/>
        <expression value="value.startsWith(library).not()"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier">
      <path value="Measure.group.stratifier"/>
      <short value="Stratifier criteria for the measure"/>
      <definition
                  value="The stratifier criteria for the measure report, specified as either the name of a valid CQL expression defined within a referenced library or a valid FHIR Resource Path."/>
      <requirements
                    value="A measure should provide stratification information if appropriate for the measure content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.group.stratifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier.id">
      <path value="Measure.group.stratifier.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <requirements
                    value="A measure should provide stratification information if appropriate for the measure content."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.stratifier.extension">
      <path value="Measure.group.stratifier.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. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               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>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.stratifier.modifierExtension">
      <path value="Measure.group.stratifier.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               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."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.group.stratifier.code">
      <path value="Measure.group.stratifier.code"/>
      <short value="Meaning of the stratifier"/>
      <definition
                  value="Indicates a meaning for the stratifier. This can be as simple as a unique identifier, or it can establish meaning in a broader context by drawing from a terminology, allowing stratifiers to be correlated across measures."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.stratifier.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier.description">
      <path value="Measure.group.stratifier.description"/>
      <short value="The human readable description of this stratifier"/>
      <definition
                  value="The human readable description of this stratifier criteria."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.stratifier.description"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier.criteria">
      <path value="Measure.group.stratifier.criteria"/>
      <short value="How the measure should be stratified"/>
      <definition
                  value="The name of a valid referenced CQL expression (MUST NOT be namespaced) that defines this stratifier criteria."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.stratifier.criteria"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Expression"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="cqm-5"/>
        <severity value="warning"/>
        <human
               value="Group stratifier criteria SHOULD be simple expression names found within the primary library for the measure. The criteria SHOULD NOT include a namespace."/>
        <expression value="value.startsWith(library).not()"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier.component">
      <path value="Measure.group.stratifier.component"/>
      <short value="Stratifier criteria component for the measure"/>
      <definition
                  value="A component of the stratifier criteria for the measure report, specified as either the name of a valid CQL expression defined within a referenced library or a valid FHIR Resource Path."/>
      <comment
               value="Stratifiers are defined either as a single criteria, or as a set of component criteria."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.group.stratifier.component"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier.component.id">
      <path value="Measure.group.stratifier.component.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.stratifier.component.extension">
      <path value="Measure.group.stratifier.component.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. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               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>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.group.stratifier.component.modifierExtension">
      <path value="Measure.group.stratifier.component.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               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."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.group.stratifier.component.code">
      <path value="Measure.group.stratifier.component.code"/>
      <short value="Meaning of the stratifier component"/>
      <definition
                  value="Indicates a meaning for the stratifier component. This can be as simple as a unique identifier, or it can establish meaning in a broader context by drawing from a terminology, allowing stratifiers to be correlated across measures."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.stratifier.component.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier.component.description">
      <path value="Measure.group.stratifier.component.description"/>
      <short value="The human readable description of this stratifier component"/>
      <definition
                  value="The human readable description of this stratifier criteria component."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.stratifier.component.description"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.group.stratifier.component.criteria">
      <path value="Measure.group.stratifier.component.criteria"/>
      <short value="Component of how the measure should be stratified"/>
      <definition
                  value="An expression that specifies the criteria for this component of the stratifier. This is typically the name of an expression defined within a referenced library, but it may also be a path to a stratifier element."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.group.stratifier.component.criteria"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Expression"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.supplementalData">
      <path value="Measure.supplementalData"/>
      <short value="What other data should be reported with the measure"/>
      <definition
                  value="The supplemental data criteria for the measure report, specified as either the name of a valid CQL expression within a referenced library, or a valid FHIR Resource Path."/>
      <comment
               value="Note that supplemental data are reported as observations for each patient and included in the evaluatedResources bundle. See the MeasureReport resource or the Quality Reporting topic for more information."/>
      <requirements
                    value="A measure should provide supplemental data appropriate for the measure content."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.supplementalData"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="cqm-6"/>
        <severity value="warning"/>
        <human value="Supplemental data SHALL use either criteria or path"/>
        <expression value="criteria.exists() or path.exists()"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.supplementalData.id">
      <path value="Measure.supplementalData.id"/>
      <representation value="xmlAttr"/>
      <short value="Unique id for inter-element referencing"/>
      <definition
                  value="Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces."/>
      <requirements
                    value="A measure should provide supplemental data appropriate for the measure content."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/>
        </extension>
        <code value="http://hl7.org/fhirpath/System.String"/>
      </type>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.supplementalData.extension">
      <path value="Measure.supplementalData.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. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
      <comment
               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>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Measure.supplementalData.modifierExtension">
      <path value="Measure.supplementalData.modifierExtension"/>
      <short value="Extensions that cannot be ignored even if unrecognized"/>
      <definition
                  value="May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. 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 can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
      <comment
               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."/>
      <requirements
                    value="Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/extensibility.html#modifierExtension)."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="BackboneElement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath
               value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), &quot;value&quot;)])"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
      </constraint>
      <isModifier value="true"/>
      <isModifierReason
                        value="Modifier extensions are expected to modify the meaning or interpretation of the element that contains them"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Measure.supplementalData.code">
      <path value="Measure.supplementalData.code"/>
      <short value="Meaning of the supplemental data"/>
      <definition
                  value="Indicates a meaning for the supplemental data. This can be as simple as a unique identifier, or it can establish meaning in a broader context by drawing from a terminology, allowing supplemental data to be correlated across measures."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.supplementalData.code"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <mustSupport value="true"/>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <strength value="extensible"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/measure-data-usage"/>
      </binding>
    </element>
    <element id="Measure.supplementalData.usage">
      <path value="Measure.supplementalData.usage"/>
      <short value="supplemental-data | risk-adjustment-factor"/>
      <definition
                  value="An indicator of the intended usage for the supplemental data element. Supplemental data indicates the data is additional information requested to augment the measure information. Risk adjustment factor indicates the data is additional information used to calculate risk adjustment factors when applying a risk model to the measure calculation."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="Measure.supplementalData.usage"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
      <binding>
        <extension
                   url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="MeasureDataUsage"/>
        </extension>
        <strength value="extensible"/>
        <description
                     value="The intended usage for supplemental data elements in the measure."/>
        <valueSet value="http://hl7.org/fhir/ValueSet/measure-data-usage"/>
      </binding>
    </element>
    <element id="Measure.supplementalData.description">
      <path value="Measure.supplementalData.description"/>
      <short value="The human readable description of this supplemental data"/>
      <definition
                  value="The human readable description of this supplemental data."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Measure.supplementalData.description"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
    <element id="Measure.supplementalData.criteria">
      <path value="Measure.supplementalData.criteria"/>
      <short value="Expression describing additional data to be reported"/>
      <definition
                  value="The criteria for the supplemental data. This is typically the name of a valid expression defined within a referenced library, but it may also be a path to a specific data element. The criteria defines the data to be returned for this element."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Measure.supplementalData.criteria"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Expression"/>
      </type>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="hasValue() or (children().count() &gt; id.count())"/>
        <xpath value="@value|f:*|h:div"/>
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/>
      </constraint>
      <isModifier value="false"/>
      <isSummary value="false"/>
    </element>
  </snapshot>
  <differential>
    <element id="Measure">
      <path value="Measure"/>
      <mustSupport value="false"/>
    </element>
    <element id="Measure.meta">
      <path value="Measure.meta"/>
      <min value="1"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.meta.profile">
      <path value="Measure.meta.profile"/>
      <requirements value="A measure must declare its profile."/>
      <min value="1"/>
      <max value="*"/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.extension:comment">
      <path value="Measure.extension"/>
      <sliceName value="comment"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-artifactComment"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.extension:allocation">
      <path value="Measure.extension"/>
      <sliceName value="allocation"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-allocation"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.extension:softwaresystem">
      <path value="Measure.extension"/>
      <sliceName value="softwaresystem"/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="Extension"/>
        <profile
                 value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/cqfm-softwaresystem"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.library">
      <path value="Measure.library"/>
      <short
             value="CQFMMeasures are not required to use a Library, but if they do, it SHALL be a CQFMLibrary."/>
      <requirements
                    value="A computable measure MUST provide one primary library reference containing population criteria definitions for the measure."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="canonical"/>
        <targetProfile
                       value="http://hl7.org/fhir/us/cqfmeasures/StructureDefinition/library-cqfm"/>
      </type>
      <condition value="cqm-2"/>
      <constraint>
        <key value="cqm-2"/>
        <severity value="warning"/>
        <human
               value="Measures utilizing CQL SHALL reference one and only one CQL library (and that referenced library MUST be the primary library for the measure)"/>
        <expression value="exists()"/>
        <xpath value="exists(f)"/>
      </constraint>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.type">
      <path value="Measure.type"/>
      <requirements value="A measure must indicate the type of the measure."/>
      <mustSupport value="true"/>
      <binding>
        <strength value="extensible"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/measure-type"/>
      </binding>
    </element>
    <element id="Measure.group">
      <path value="Measure.group"/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.group.id">
      <path value="Measure.group.id"/>
      <condition value="cqm-3"/>
      <constraint>
        <key value="cqm-3"/>
        <severity value="warning"/>
        <human
               value="Group identifiers SHOULD use the convention: &quot;group-[group number]&quot;, where [group number] corresponds with the group naming convention for the criteria within the group"/>
        <expression value="value.startsWith('group-')"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.group.population">
      <path value="Measure.group.population"/>
      <requirements
                    value="A measure must specify at least one population or composite calculation for each population group."/>
      <min value="0"/>
      <max value="*"/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.group.population.id">
      <path value="Measure.group.population.id"/>
      <requirements
                    value="A measure must specify at least one population or composite calculation for each population group."/>
      <min value="1"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.group.population.code">
      <path value="Measure.group.population.code"/>
      <requirements
                    value="A measure must specify the type of population criteria."/>
      <min value="1"/>
      <max value="1"/>
      <mustSupport value="true"/>
      <binding>
        <strength value="extensible"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/measure-population"/>
      </binding>
    </element>
    <element id="Measure.group.population.criteria">
      <path value="Measure.group.population.criteria"/>
      <definition
                  value="The name of a valid referenced CQL expression (MUST NOT be namespaced) that defines this population criteria."/>
      <constraint>
        <key value="cqm-4"/>
        <severity value="warning"/>
        <human
               value="Group population criteria SHOULD be simple expression names found within the primary library for the measure. The criteria SHOULD NOT include a namespace."/>
        <expression value="value.startsWith(library).not()"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.group.stratifier">
      <path value="Measure.group.stratifier"/>
      <requirements
                    value="A measure should provide stratification information if appropriate for the measure content."/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.group.stratifier.id">
      <path value="Measure.group.stratifier.id"/>
      <requirements
                    value="A measure should provide stratification information if appropriate for the measure content."/>
      <min value="1"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.group.stratifier.criteria">
      <path value="Measure.group.stratifier.criteria"/>
      <definition
                  value="The name of a valid referenced CQL expression (MUST NOT be namespaced) that defines this stratifier criteria."/>
      <constraint>
        <key value="cqm-5"/>
        <severity value="warning"/>
        <human
               value="Group stratifier criteria SHOULD be simple expression names found within the primary library for the measure. The criteria SHOULD NOT include a namespace."/>
        <expression value="value.startsWith(library).not()"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.supplementalData">
      <path value="Measure.supplementalData"/>
      <requirements
                    value="A measure should provide supplemental data appropriate for the measure content."/>
      <constraint>
        <key value="cqm-6"/>
        <severity value="warning"/>
        <human value="Supplemental data SHALL use either criteria or path"/>
        <expression value="criteria.exists() or path.exists()"/>
        <xpath value="exists(f:value)"/>
      </constraint>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.supplementalData.id">
      <path value="Measure.supplementalData.id"/>
      <requirements
                    value="A measure should provide supplemental data appropriate for the measure content."/>
      <min value="1"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element id="Measure.supplementalData.code">
      <path value="Measure.supplementalData.code"/>
      <mustSupport value="true"/>
      <binding>
        <strength value="extensible"/>
        <valueSet value="http://terminology.hl7.org/ValueSet/measure-data-usage"/>
      </binding>
    </element>
  </differential>
</StructureDefinition>