<?xml version="1.0" encoding="UTF-8"?>
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/*
  Copyright (c) 2011+, HL7, Inc.
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  are permitted provided that the following conditions are met:
  
   * Redistributions of source code must retain the above copyright notice, this 
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  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="DeviceRequest" type="DeviceRequest">
    <xs:annotation>
      <xs:documentation xml:lang="en">Represents a request for a patient to employ a medical device. The device may be an implantable device, or an external assistive device, such as a walker.</xs:documentation>
    </xs:annotation>
  </xs:element>
  <xs:complexType name="DeviceRequest">
    <xs:annotation>
      <xs:documentation xml:lang="en">Represents a request for a patient to employ a medical device. The device may be an implantable device, or an external assistive device, such as a walker.</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">Identifiers assigned to this order by the orderer or by the receiver.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="basedOn" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Plan/proposal/order fulfilled 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">The request takes the place of the referenced completed or terminated request(s).</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="0" maxOccurs="1" type="RequestStatus">
            <xs:annotation>
              <xs:documentation xml:lang="en">The status of the request.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="intent" minOccurs="1" maxOccurs="1" type="RequestIntent">
            <xs:annotation>
              <xs:documentation xml:lang="en">Whether the request is a proposal, plan, an original order or a reflex order.</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 request 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">If true, indicates that the provider is asking for the patient to either stop using or to not start using the specified device or category of devices. For example, the patient has undergone surgery and the provider is indicating that the patient should not wear contact lenses.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="1" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">The details of the device to be used.</xs:documentation>
            </xs:annotation>
            <xs:element name="productCodeableConcept" type="CodeableConcept"/>
            <xs:element name="productReference" type="Reference"/>
            <xs:element name="productCanonical" type="canonical"/>
          </xs:choice>
          <xs:element name="quantity" minOccurs="0" maxOccurs="1" type="integer">
            <xs:annotation>
              <xs:documentation xml:lang="en">The number of devices to be provided.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="parameter" type="DeviceRequest.Parameter" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Specific parameters for the ordered item.  For example, the prism value for lenses.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="subject" minOccurs="1" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The patient who will use the device.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="encounter" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">An encounter that provides additional context in which this request is made.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">The timing schedule for the use of the device. The Schedule data type allows many different expressions, for example. &quot;Every 8 hours&quot;; &quot;Three times a day&quot;; &quot;1/2 an hour before breakfast for 10 days from 23-Dec 2011:&quot;; &quot;15 Oct 2013, 17 Oct 2013 and 1 Nov 2013&quot;.</xs:documentation>
            </xs:annotation>
            <xs:element name="occurrenceDateTime" type="dateTime"/>
            <xs:element name="occurrencePeriod" type="Period"/>
            <xs:element name="occurrenceTiming" type="Timing"/>
          </xs:choice>
          <xs:element name="authoredOn" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">When the request transitioned to being actionable.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="requester" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The individual or entity who initiated the request and has responsibility for its activation.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="performer" minOccurs="0" maxOccurs="1" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The desired individual or entity to provide the device to the subject of the request (e.g., patient, location).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="location" minOccurs="0" maxOccurs="unbounded" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The preferred location(s) where the device should actually be used in coded or free text form. E.g. at home or nursing day care center.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reason" minOccurs="0" maxOccurs="unbounded" type="CodeableReference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Reason or justification for the use of this device.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="asNeeded" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">This status is to indicate whether the request is a PRN or may be given as needed.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="asNeededFor" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The reason for using the device.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="insurance" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Insurance plans, coverage extensions, pre-authorizations and/or pre-determinations that may be required for delivering the requested service.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="supportingInfo" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Additional clinical information about the patient that may influence the request fulfilment.  For example, this may include where on the subject's body the device will be used (i.e. the target site).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="note" minOccurs="0" maxOccurs="unbounded" type="Annotation">
            <xs:annotation>
              <xs:documentation xml:lang="en">Details about this request that were not represented at all or sufficiently in one of the attributes provided in a class. These may include for example a comment, an instruction, or a note associated with the statement.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="relevantHistory" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Key events in the history of the request.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="DeviceRequest.Parameter">
    <xs:annotation>
      <xs:documentation xml:lang="en">Represents a request for a patient to employ a medical device. The device may be an implantable device, or an external assistive device, such as a walker.</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 code or string that identifies the device detail being asserted.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:choice minOccurs="0" maxOccurs="1" >
            <xs:annotation>
              <xs:documentation xml:lang="en">The value of the device detail.</xs:documentation>
            </xs:annotation>
            <xs:element name="valueCodeableConcept" type="CodeableConcept"/>
            <xs:element name="valueQuantity" type="Quantity"/>
            <xs:element name="valueRange" type="Range"/>
            <xs:element name="valueBoolean" type="boolean"/>
          </xs:choice>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:schema>
