<?xml version="1.0" encoding="UTF-8"?>
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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 
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   * 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 
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  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 
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  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 
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  Generated on Tue, May 19, 2026 20:26+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="CommunicationRequest" type="CommunicationRequest">
    <xs:annotation>
      <xs:documentation xml:lang="en">A request to convey information from a sender to a recipient.</xs:documentation>
    </xs:annotation>
  </xs:element>
  <xs:complexType name="CommunicationRequest">
    <xs:annotation>
      <xs:documentation xml:lang="en">A request to convey information from a sender to a recipient.</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="DomainResource">
        <xs:sequence>
          <xs:element name="identifier" minOccurs="0" maxOccurs="unbounded" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">Business identifiers assigned to this communication request by the performer or other systems which remain constant as the resource is updated and propagates from server to server.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="basedOn" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">A plan or proposal that is fulfilled in whole or in part by this request.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="replaces" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Completed or terminated request(s) whose function is taken by this new request.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="groupIdentifier" minOccurs="0" maxOccurs="1" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">A shared identifier common to multiple independent Request instances that were activated/authorized more or less simultaneously by a single author.  The presence of the same identifier on each request ties those requests together and may have business ramifications in terms of reporting of results, billing, etc.  E.g. a requisition number shared by a set of lab tests ordered together, or a prescription number shared by all meds ordered at one time.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="status" minOccurs="1" maxOccurs="1" type="RequestStatus">
            <xs:annotation>
              <xs:documentation xml:lang="en">The status of the proposal or order.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="statusReason" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Captures the reason for the current state of the CommunicationRequest.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="intent" minOccurs="1" maxOccurs="1" type="RequestIntent">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates the level of authority/intentionality associated with the CommunicationRequest and where the request fits into the workflow chain.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="category" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The type of message to be sent such as alert, notification, reminder, instruction, etc.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="priority" minOccurs="0" maxOccurs="1" type="RequestPriority">
            <xs:annotation>
              <xs:documentation xml:lang="en">Characterizes how quickly the proposed act must be initiated. Includes concepts such as stat, urgent, routine.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="doNotPerform" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">If true indicates that the CommunicationRequest is asking for the specified action to *not* occur.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="medium" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">A channel that was used for this communication (e.g. email, fax).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="subject" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The patient or group that is the focus of this communication request.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="about" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Other resources that pertain to this communication request and to which this communication request should be associated.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="encounter" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The Encounter during which this CommunicationRequest was created or to which the creation of this record is tightly associated.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="payload" type="CommunicationRequest.Payload" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Text, attachment(s), or resource(s) to be communicated to the recipient.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">The time when this communication is to occur.</xs:documentation>
            </xs:annotation>
            <xs:element name="occurrenceDateTime" type="dateTime"/>
            <xs:element name="occurrencePeriod" type="Period"/>
          </xs:choice>
          <xs:element name="authoredOn" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">For draft requests, indicates the date of initial creation.  For requests with other statuses, indicates the date of activation.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="requester" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The device, individual, or organization who asks for the information to be shared.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="recipient" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The entity (e.g. person, organization, clinical information system, device, group, or care team) which is the intended target of the communication.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="informationProvider" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The entity (e.g. person, organization, clinical information system, or device) which is to be the source of the communication.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reason" minOccurs="0" maxOccurs="unbounded" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Describes why the request is being made in coded or textual form.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="note" minOccurs="0" maxOccurs="unbounded" type="Annotation">
            <xs:annotation>
              <xs:documentation xml:lang="en">Comments made about the request by the requester, sender, recipient, subject or other participants.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="CommunicationRequest.Payload">
    <xs:annotation>
      <xs:documentation xml:lang="en">A request to convey information from a sender to a recipient.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:choice minOccurs="1" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">The content (or for multi-part communications, one portion of the communication) to be communicated.</xs:documentation>
            </xs:annotation>
            <xs:element name="contentAttachment" type="Attachment"/>
            <xs:element name="contentReference" type="Reference"/>
            <xs:element name="contentCodeableConcept" type="CodeableConcept"/>
          </xs:choice>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:schema>
