<?xml version="1.0" encoding="UTF-8"?>
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 * Copyright (C) 2014 - 2019 Health Level 7
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 * distributed under the License is distributed on an "AS IS" BASIS,
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/*
  Copyright (c) 2011+, HL7, Inc.
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without modification, 
  are permitted provided that the following conditions are met:
  
   * Redistributions of source code must retain the above copyright notice, this 
     list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright notice, 
     this list of conditions and the following disclaimer in the documentation 
     and/or other materials provided with the distribution.
   * Neither the name of HL7 nor the names of its contributors may be used to 
     endorse or promote products derived from this software without specific 
     prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
  POSSIBILITY OF SUCH DAMAGE.
  

  Generated on Thu, Apr 9, 2026 17:12+0000 for FHIR v6.0.0-ballot4 

  Note: the schemas &amp; schematrons do not contain all of the rules about what makes resources
  valid. Implementers will still need to be familiar with the content of the specification and with
  any profiles that apply to the resources in order to make a conformant implementation.

-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://hl7.org/fhir" xmlns:xhtml="http://www.w3.org/1999/xhtml" targetNamespace="http://hl7.org/fhir" elementFormDefault="qualified" version="1.0">
  <xs:include schemaLocation="fhir-base.xsd"/>
  <xs:element name="Measure" type="Measure">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
  </xs:element>
  <xs:complexType name="Measure">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
      <xs:documentation xml:lang="en">If the element is present, it must have either a @value, an @id, or extensions</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="MetadataResource">
        <xs:sequence>
          <xs:element name="url" minOccurs="0" maxOccurs="1" type="uri">
            <xs:annotation>
              <xs:documentation xml:lang="en">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 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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="identifier" minOccurs="0" maxOccurs="unbounded" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="version" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the mechanism used to compare versions to determine which is more current.</xs:documentation>
            </xs:annotation>
            <xs:element name="versionAlgorithmString" type="string"/>
            <xs:element name="versionAlgorithmCoding" type="Coding"/>
          </xs:choice>
          <xs:element name="name" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="title" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">A short, descriptive, user-friendly title for the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="subtitle" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">An explanatory or alternate title for the measure giving additional information about its content.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="status" minOccurs="1" maxOccurs="1" type="PublicationStatus">
            <xs:annotation>
              <xs:documentation xml:lang="en">The status of this measure. Enables tracking the life-cycle of the content.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="experimental" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">A Boolean value to indicate that this measure is authored for testing purposes (or education/evaluation/marketing) and no version of this resource will ever be intended for genuine usage.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
            </xs:annotation>
            <xs:element name="subjectCodeableConcept" type="CodeableConcept"/>
            <xs:element name="subjectReference" type="Reference"/>
          </xs:choice>
          <xs:element name="date" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date  (and optionally time) when the measure was last significantly changed. 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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publisher" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">The name of the organization or individual responsible for the release and ongoing maintenance of the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="contact" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">Contact details to assist a user in finding and communicating with the publisher.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="description" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">A free text natural language description of the measure from a consumer's perspective.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="useContext" minOccurs="0" maxOccurs="unbounded" type="UsageContext">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="jurisdiction" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">A legal or geographic region in which the authority that maintains the resource is operating.  In general, the jurisdiction is also found in the useContext.  The useContext may reference additional jurisdictions because the defining jurisdiction does not necessarily limit the jurisdictions of use.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="purpose" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Explanation of why this measure is needed and why it has been designed as it has.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="usage" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">A detailed description, from a clinical perspective, of how the measure is used.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="copyright" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">A copyright statement relating to the measure and/or its contents. Copyright statements are notices of intellectual property ownership and can include restrictions on the use and publishing of the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="copyrightLabel" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">A short string (&lt;50 characters), suitable for inclusion in a page footer that identifies the copyright holder, effective period, and optionally whether rights are restricted. (e.g. 'All rights reserved', 'Some rights reserved').</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="approvalDate" minOccurs="0" maxOccurs="1" type="date">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date on which the resource content was approved by the publisher. Approval happens once when the content is officially approved for usage.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="lastReviewDate" minOccurs="0" maxOccurs="1" type="date">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date on which the resource content was last reviewed. Review happens periodically after approval but does not change the original approval date.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="effectivePeriod" minOccurs="0" maxOccurs="1" type="Period">
            <xs:annotation>
              <xs:documentation xml:lang="en">The period during which the measure content was or is planned to be in active use.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reportingFrequency" minOccurs="0" maxOccurs="1" type="Quantity">
            <xs:annotation>
              <xs:documentation xml:lang="en">The frequency that this measure should be reported, usually specified by the program it is being submitted to.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="topic" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="author" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">An individiual or organization primarily involved in the creation and maintenance of the content.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="editor" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">An individual or organization primarily responsible for internal coherence of the content.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reviewer" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">An individual or organization asserted by the publisher to be primarily responsible for review of some aspect of the content.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="endorser" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">An individual or organization asserted by the publisher to be responsible for officially endorsing the content for use in some setting.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="relatedArtifact" minOccurs="0" maxOccurs="unbounded" type="RelatedArtifact">
            <xs:annotation>
              <xs:documentation xml:lang="en">Related artifacts such as additional documentation, justification, or bibliographic references.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="library" minOccurs="0" maxOccurs="unbounded" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">A reference to a Library resource containing the formal logic used by the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="disclaimer" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Notices and disclaimers regarding the use of the measure or related to intellectual property (such as code systems) referenced by the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="riskAdjustment" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="rateAggregation" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Describes how to combine the information calculated, based on logic in each of several populations, into one summarized result.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="rationale" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Provides a detailed justification of the need for the measure including statements pertaining to importance criterion: impact, gap in care, and evidence.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="clinicalRecommendationStatement" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Provides a summary of relevant clinical guidelines or other clinical recommendations supporting the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="term" type="Measure.Term" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Provides a description of an individual term used within the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="guidance" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Additional guidance for the measure including how it can be used in a clinical context, and the intent of the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="group" type="Measure.Group" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">A group of population criteria for the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="supplementalData" type="Measure.SupplementalData" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Measure.Term">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="code" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">A codeable representation of the defined term.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="definition" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Provides a definition for the term as used within the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Measure.Group">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="linkId" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">An identifier that is unique within the Measure allowing linkage to the equivalent item in a MeasureReport resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="title" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the title for the group.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="code" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="description" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The human readable description of this population group.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="type" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">The intended subjects for the measure. If this element is not provided, there is no subject context (i.e. population criteria are evaluated from the perspective of the entire system, rather than from the perspective of a particular subject).</xs:documentation>
            </xs:annotation>
            <xs:element name="subjectCodeableConcept" type="CodeableConcept"/>
            <xs:element name="subjectReference" type="Reference"/>
          </xs:choice>
          <xs:element name="basis" minOccurs="0" maxOccurs="1" type="FHIRTypes">
            <xs:annotation>
              <xs:documentation xml:lang="en">The population basis specifies the type of elements in the population. For a subject-based measure, this is boolean (because the subject and the population basis are the same, and the population criteria define yes/no values for each individual in the population). For measures that have a population basis that is different than the subject, this element specifies the type of the population basis. For example, an encounter-based measure has a subject of Patient and a population basis of Encounter, and the population criteria all return lists of Encounters.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="basisRequirement" minOccurs="0" maxOccurs="unbounded" type="DataRequirement">
            <xs:annotation>
              <xs:documentation xml:lang="en">Specifies population basis requirements (i.e. what constitutes a case, or what is being counted) as a DataRequirement. If multiple basisRequirements are specified, criteria expressions may return data that satisfies ANY basisRequirement. A data element satisfies a basisRequirement if the instance `is` of the type, conforms to ALL the specified profiles, and matches ALL the codeFilters. basisRequirements SHALL specify type, MAY specify profile and codeFilter, and SHALL NOT specify dateFilter, valueFilter, limit, or sort. If basis is specified, any basisRequirement SHALL be consistent with the specified basis (i.e. the type of each basisRequirement SHALL be the same type as, or a subtype of the basis type).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="scoring" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="scoringUnit" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Defines the expected units of measure for the measure score. This element SHOULD be specified as a UCUM unit.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="scoringPrecision" minOccurs="0" maxOccurs="1" type="positiveInt">
            <xs:annotation>
              <xs:documentation xml:lang="en">When the score is a decimal value this should be used to specify the expected minimum number of digits after the decimal point to use for the precision of the value. When a scoringUnit is also specified, this value is the expected minimum number of digits after the decimal point when the score is expressed in the units specified.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="compositeScoring" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">If this is a composite measure, the scoring method used to combine the component measures to determine the composite score.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="component" type="Measure.Component" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">If this is a composite measure, a component of the composite.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="rateAggregation" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Describes how to combine the information calculated, based on logic in each of several populations, into one summarized result.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="improvementNotation" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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). Exercise caution when using any values besides increase or decrease for improvementNotation.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="improvementNotationGuidance" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Narrative text to explain the improvement notation and how to interpret it.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="library" minOccurs="0" maxOccurs="unbounded" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">A reference to a Library resource containing the formal logic used by the measure group.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="population" type="Measure.Population" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">A population criteria for the measure.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="stratifier" type="Measure.Stratifier" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">A stratifier for the measure, specified as either a criteria expression, or a set of components that define value-based stratifier expressions.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Measure.Component">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="measure" minOccurs="0" maxOccurs="1" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">The measure that contains the definition of the component calculation.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="groupId" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Specifies the id of a particular group within the measure referenced by the related artifact resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="weight" minOccurs="0" maxOccurs="1" type="decimal">
            <xs:annotation>
              <xs:documentation xml:lang="en">What is the weight of the contribution of this measure to the overall score.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Measure.Population">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="linkId" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">An identifier that is unique within the Measure allowing linkage to the equivalent population in a MeasureReport resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="title" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the title for the group's population.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="code" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The type of population criteria.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="description" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The human readable description of this population criteria.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="criteria" minOccurs="0" maxOccurs="1" type="Expression">
            <xs:annotation>
              <xs:documentation xml:lang="en">An expression that specifies the criteria for the population, typically the name of an expression in a library.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="groupDefinition" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">A Group resource that defines this population as a set of characteristics.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="inputPopulationId" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">The id of a population element in this measure that provides the input for this population criteria. In most cases, the scoring structure of the measure implies specific relationships (e.g. the Numerator uses the Denominator as the source in a proportion scoring). In some cases, however, multiple possible choices exist and must be resolved explicitly. For example in a ratio measure with multiple initial populations, the denominator must specify which population should be used as the starting point.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="aggregateMethod" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Specifies which method should be used to aggregate measure observation values. For most scoring types, this is implied by scoring (e.g. a proportion measure counts members of the populations). For continuous variables, however, this information must be specified to ensure correct calculation.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Measure.Stratifier">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="linkId" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">An identifier that is unique within the Measure allowing linkage to the equivalent item in a MeasureReport resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="title" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the title for the stratifier of the group.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="code" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="description" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The human readable description of this stratifier criteria.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="criteria" minOccurs="0" maxOccurs="1" type="Expression">
            <xs:annotation>
              <xs:documentation xml:lang="en">An expression that specifies a criteria-based stratifier for the measure. This is typically the name of an expression defined within a referenced library, and SHALL use the same basis as other population criteria for the population group.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="groupDefinition" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">A Group resource that defines this population as a set of characteristics.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="component" type="Measure.Component1" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">A component of a value-based stratifier 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.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Measure.Component1">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="linkId" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">An identifier that is unique within the Measure allowing linkage to the equivalent item in a MeasureReport resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="code" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="description" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The human readable description of this stratifier criteria component.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="criteria" minOccurs="0" maxOccurs="1" type="Expression">
            <xs:annotation>
              <xs:documentation xml:lang="en">An expression that returns the value of this component of the stratifier for a member of the population. This is typically the name of an expression defined within a referenced library, but it may also be a path to a stratifier element, evaluated from the perspective of the measure subject. If this is a non-subject-based measure, the expression may be a reference to a function that takes an argument of the type of the measure basis, allowing the stratifier value to be determined for each member of the population.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="groupDefinition" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">A Group resource that defines this population as a set of characteristics.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="valueSet" minOccurs="0" maxOccurs="1" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">A value set defining the set of possible values for stratum in this stratifier. If criteria and valueSet are both present, they SHALL be consistent (i.e. criteria expressions SHALL produce stratum values that are codes in the value set referenced by this element). Note that this MAY be strictly at the code level (e.g. an Age Range code that is just the string value `01Y--05Y` with the system ignored).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="unit" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates what units, if any, stratifier values are expected to be expressed in. This element SHOULD be specified in UCUM units or calendar units.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Measure.SupplementalData">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Measure resource provides the definition of a quality measure.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="linkId" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">An identifier that is unique within the Measure allowing linkage to the equivalent item in a MeasureReport resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="code" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="usage" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="description" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The human readable description of this supplemental data.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="criteria" minOccurs="1" maxOccurs="1" type="Expression">
            <xs:annotation>
              <xs:documentation xml:lang="en">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.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="valueSet" minOccurs="0" maxOccurs="1" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">A value set defining the set of possible values for supplemental data in this element. If criteria and valueSet are both present, they SHALL be consistent (i.e. criteria expressions SHALL produce supplemental data values that are codes in the value set referenced by this element). Note that this MAY be strictly at the code level (e.g. an Age Range code that is just the string value `01Y--05Y` with the system ignored).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="unit" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates what units, if any, supplemental data values are expected to be expressed in. This element SHOULD be specified in UCUM units or calendar units.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:schema>
