<?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,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 Tue, Jun 16, 2026 19:54+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="ActivityDefinition" type="ActivityDefinition">
    <xs:annotation>
      <xs:documentation xml:lang="en">This resource allows for the definition of some activity to be performed, independent of a particular patient, practitioner, or other performance context.</xs:documentation>
    </xs:annotation>
  </xs:element>
  <xs:complexType name="ActivityDefinition">
    <xs:annotation>
      <xs:documentation xml:lang="en">This resource allows for the definition of some activity to be performed, independent of a particular patient, practitioner, or other performance context.</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 activity definition 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 activity definition is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the activity definition 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 activity definition 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 activity definition when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the activity definition 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 assets.</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 activity definition. 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 activity definition.</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 activity definition 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 activity definition. 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 activity definition 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">A code, group definition, or canonical reference that describes  or identifies the intended subject of the activity being defined.  Canonical references are allowed to support the definition of protocols for drug and substance quality specifications, and is allowed to reference a MedicinalProductDefinition, SubstanceDefinition, AdministrableProductDefinition, ManufacturedItemDefinition, or PackagedProductDefinition resource.</xs:documentation>
            </xs:annotation>
            <xs:element name="subjectCodeableConcept" type="CodeableConcept"/>
            <xs:element name="subjectReference" type="Reference"/>
            <xs:element name="subjectCanonical" type="canonical"/>
          </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 activity definition 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 activity definition 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 activity definition.</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 activity definition 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 activity definition 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 activity definition 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 of how the activity definition is used from a clinical perspective.</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 activity definition and/or its contents. Copyright statements are notices of intellectual property ownership and can include restrictions on the use and publishing of the activity definition.</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 activity definition content was or is planned to be in active use.</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 activity. Topics provide a high-level categorization of the activity 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 any formal logic used by the activity definition.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="kind" minOccurs="0" maxOccurs="1" type="RequestResourceTypes">
            <xs:annotation>
              <xs:documentation xml:lang="en">A description of the kind of resource the activity definition is representing. For example, a MedicationRequest, a ServiceRequest, or a CommunicationRequest.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="profile" minOccurs="0" maxOccurs="1" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">A profile to which the target of the activity definition is expected to conform.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="code" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Detailed description of the type of activity; e.g. What lab test, what procedure, what kind of encounter.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="intent" minOccurs="0" maxOccurs="1" type="RequestIntent">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the level of authority/intentionality associated with the activity and where the request should fit into the workflow chain.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="priority" minOccurs="0" maxOccurs="1" type="RequestPriority">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates how quickly the activity  should be addressed with respect to other requests.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="doNotPerform" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Set this to true if the definition is to indicate that a particular activity should NOT be performed. If true, this element should be interpreted to reinforce a negative coding. For example NPO as a code with a doNotPerform of true would still indicate to NOT perform the action.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">The timing or frequency upon which the described activity is to occur.</xs:documentation>
            </xs:annotation>
            <xs:element name="timingTiming" type="Timing"/>
            <xs:element name="timingAge" type="Age"/>
            <xs:element name="timingRange" type="Range"/>
            <xs:element name="timingDuration" type="Duration"/>
            <xs:element name="timingRelativeTime" type="RelativeTime"/>
          </xs:choice>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">If a CodeableConcept is present, it indicates the pre-condition for performing the service.  For example &quot;pain&quot;, &quot;on flare-up&quot;, etc.</xs:documentation>
            </xs:annotation>
            <xs:element name="asNeededBoolean" type="boolean"/>
            <xs:element name="asNeededCodeableConcept" type="CodeableConcept"/>
          </xs:choice>
          <xs:element name="location" minOccurs="0" maxOccurs="1" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Identifies the facility where the activity will occur; e.g. home, hospital, specific clinic, etc.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="participant" type="ActivityDefinition.Participant" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates who should participate in performing the action described.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">Identifies the food, drug or other product being consumed or supplied in the activity.</xs:documentation>
            </xs:annotation>
            <xs:element name="productReference" type="Reference"/>
            <xs:element name="productCodeableConcept" type="CodeableConcept"/>
          </xs:choice>
          <xs:element name="quantity" minOccurs="0" maxOccurs="1" type="Quantity">
            <xs:annotation>
              <xs:documentation xml:lang="en">Identifies the quantity expected to be consumed at once (per dose, per meal, etc.).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="dosage" minOccurs="0" maxOccurs="unbounded" type="Dosage">
            <xs:annotation>
              <xs:documentation xml:lang="en">Provides detailed dosage instructions in the same way that they are described for MedicationRequest resources.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="bodySite" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the sites on the subject's body where the procedure should be performed (I.e. the target sites).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="specimenRequirement" minOccurs="0" maxOccurs="unbounded" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">Defines specimen requirements for the action to be performed, such as required specimens for a lab test.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="observationRequirement" minOccurs="0" maxOccurs="unbounded" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">Defines observation requirements for the action to be performed, such as body weight or surface area.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="observationResultRequirement" minOccurs="0" maxOccurs="unbounded" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">Defines the observations that are expected to be produced by the action.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="transform" minOccurs="0" maxOccurs="1" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">A reference to a StructureMap resource that defines a transform that can be executed to produce the intent resource using the ActivityDefinition instance as the input.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="dynamicValue" type="ActivityDefinition.DynamicValue" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Dynamic values that will be evaluated to produce values for elements of the resulting resource. For example, if the dosage of a medication must be computed based on the patient's weight, a dynamic value would be used to specify an expression that calculated the weight, and the path on the request resource that would contain the result.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="ActivityDefinition.Participant">
    <xs:annotation>
      <xs:documentation xml:lang="en">This resource allows for the definition of some activity to be performed, independent of a particular patient, practitioner, or other performance context.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="1" type="ActionParticipantType">
            <xs:annotation>
              <xs:documentation xml:lang="en">The type of participant in the action.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="typeCanonical" minOccurs="0" maxOccurs="1" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">The type of participant in the action.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="typeReference" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The type of participant in the action.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="role" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The role the participant should play in performing the described action.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="function" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates how the actor will be involved in the action - author, reviewer, witness, etc.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="ActivityDefinition.DynamicValue">
    <xs:annotation>
      <xs:documentation xml:lang="en">This resource allows for the definition of some activity to be performed, independent of a particular patient, practitioner, or other performance context.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="path" minOccurs="1" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">The path to the element to be customized. This is the path on the resource that will hold the result of the calculation defined by the expression. The specified path SHALL be a FHIRPath resolvable on the specified target type of the ActivityDefinition, and SHALL consist only of identifiers, constant indexers, and a restricted subset of functions. The path is allowed to contain qualifiers (.) to traverse sub-elements, as well as indexers ([x]) to traverse multiple-cardinality sub-elements (see the [Simple FHIRPath Profile](fhirpath.html#simple) for full details).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="expression" minOccurs="1" maxOccurs="1" type="Expression">
            <xs:annotation>
              <xs:documentation xml:lang="en">An expression specifying the value of the customized element.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:simpleType name="ActionParticipantTypeEnum">
    <xs:restriction base="code-primitive">
      <xs:enumeration value="careteam">
        <xs:annotation>
          <xs:documentation xml:lang="en">CareTeam</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="device">
        <xs:annotation>
          <xs:documentation xml:lang="en">Device</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="group">
        <xs:annotation>
          <xs:documentation xml:lang="en">Group</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="healthcareservice">
        <xs:annotation>
          <xs:documentation xml:lang="en">HealthcareService</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="location">
        <xs:annotation>
          <xs:documentation xml:lang="en">Location</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="organization">
        <xs:annotation>
          <xs:documentation xml:lang="en">Organization</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="patient">
        <xs:annotation>
          <xs:documentation xml:lang="en">Patient</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="practitioner">
        <xs:annotation>
          <xs:documentation xml:lang="en">Practitioner</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="practitionerrole">
        <xs:annotation>
          <xs:documentation xml:lang="en">PractitionerRole</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="relatedperson">
        <xs:annotation>
          <xs:documentation xml:lang="en">RelatedPerson</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:complexType name="ActionParticipantType">
    <xs:annotation>
      <xs:documentation xml:lang="en"></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="Element">
        <xs:attribute name="value" type="ActionParticipantTypeEnum" use="optional"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:simpleType name="RequestIntentEnum">
    <xs:restriction base="code-primitive">
      <xs:enumeration value="proposal">
        <xs:annotation>
          <xs:documentation xml:lang="en">Proposal</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="solicit-offer">
        <xs:annotation>
          <xs:documentation xml:lang="en">Solicit Offer</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="offer-response">
        <xs:annotation>
          <xs:documentation xml:lang="en">Offer Response</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="plan">
        <xs:annotation>
          <xs:documentation xml:lang="en">Plan</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="directive">
        <xs:annotation>
          <xs:documentation xml:lang="en">Directive</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="order">
        <xs:annotation>
          <xs:documentation xml:lang="en">Order</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="original-order">
        <xs:annotation>
          <xs:documentation xml:lang="en">Original Order</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="reflex-order">
        <xs:annotation>
          <xs:documentation xml:lang="en">Reflex Order</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="filler-order">
        <xs:annotation>
          <xs:documentation xml:lang="en">Filler Order</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="instance-order">
        <xs:annotation>
          <xs:documentation xml:lang="en">Instance Order</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="option">
        <xs:annotation>
          <xs:documentation xml:lang="en">Option</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:complexType name="RequestIntent">
    <xs:annotation>
      <xs:documentation xml:lang="en"></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="Element">
        <xs:attribute name="value" type="RequestIntentEnum" use="optional"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:simpleType name="RequestPriorityEnum">
    <xs:restriction base="code-primitive">
      <xs:enumeration value="routine">
        <xs:annotation>
          <xs:documentation xml:lang="en">Routine</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="urgent">
        <xs:annotation>
          <xs:documentation xml:lang="en">Urgent</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="asap">
        <xs:annotation>
          <xs:documentation xml:lang="en">ASAP</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="stat">
        <xs:annotation>
          <xs:documentation xml:lang="en">STAT</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:complexType name="RequestPriority">
    <xs:annotation>
      <xs:documentation xml:lang="en"></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="Element">
        <xs:attribute name="value" type="RequestPriorityEnum" use="optional"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:schema>
