WHO Immunization Implementation Guide
0.2.0 - ci-build

WHO Immunization Implementation Guide, published by WHO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-immunizations/tree/123/merge and changes regularly. See the Directory of published versions

: IMMZ.D5.DT.Polio contraindications - XML Representation

Draft as of 2026-03-03

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<PlanDefinition xmlns="http://hl7.org/fhir">
  <id value="IMMZD5DTPolioContraindications"/>
  <meta>
    <profile
             value="http://hl7.org/fhir/uv/cpg/StructureDefinition/cpg-recommendationdefinition"/>
    <profile
             value="http://hl7.org/fhir/uv/crmi/StructureDefinition/crmi-shareableplandefinition"/>
    <profile
             value="http://hl7.org/fhir/uv/crmi/StructureDefinition/crmi-publishableplandefinition"/>
  </meta>
  <text>
    <status value="extensions"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
<div>
    <table class="grid dict">
        
        <tr>
            <th scope="row"><b>Id: </b></th>
            <td style="padding-left: 4px;">IMMZD5DTPolioContraindications</td>
        </tr>
        

        
        <tr>
            <th scope="row"><b>Url: </b></th>
            <td style="padding-left: 4px;"><a href="PlanDefinition-IMMZD5DTPolioContraindications.html">IMMZ.D5.DT.Polio contraindications</a></td>
        </tr>
        

        
        <tr>
            <th scope="row"><b>Version: </b></th>
            <td style="padding-left: 4px;">0.2.0</td>
        </tr>
        

        

        
        <tr>
            <th scope="row"><b>Title: </b></th>
            <td style="padding-left: 4px;">IMMZ.D5.DT.Polio contraindications</td>
        </tr>
        

        

        
        <tr>
            <th scope="row"><b>Status: </b></th>
            <td style="padding-left: 4px;">draft</td>
        </tr>
        

        

        
        <tr>
            <th scope="row"><b>Type: </b></th>
            <td style="padding-left: 4px;">
                
                    
                        
                        <p style="margin-bottom: 5px;">
                            <b>system: </b> <span><a href="http://terminology.hl7.org/7.0.1/CodeSystem-plan-definition-type.html">http://terminology.hl7.org/CodeSystem/plan-definition-type</a></span>
                        </p>
                        
                        
                        <p style="margin-bottom: 5px;">
                            <b>code: </b> <span>eca-rule</span>
                        </p>
                        
                        
                    
                
                
            </td>
        </tr>
        

        

        
        <tr>
            <th scope="row"><b>Date: </b></th>
            <td style="padding-left: 4px;">2026-03-03 13:07:11+0000</td>
        </tr>
        

        
        <tr>
            <th scope="row"><b>Publisher: </b></th>
            <td style="padding-left: 4px;">WHO</td>
        </tr>
        

        
        <tr>
            <th scope="row"><b>Description: </b></th>
            <td style="padding-left: 4px;"><div><p>IMMZ.D5.DT.Polio contraindications
IMMZ.D5.DT.Polio contraindications</p>
</div></td>
        </tr>
        

        
        <tr>
            <th scope="row"><b>Knowledge Capability: </b></th>
            <td style="padding-left: 4px;">
                
                computable 
            </td>
        </tr>
        

        

        

        

        

        

        

        

        

        

        
        <tr>
            <th scope="row"><b>Related Artifacts: </b></th>
            <td style="padding-left: 4px;">
                
                
                <p><b>References</b></p>
                <ul>
                    
                    <li><div><p>WHO recommendations for routine immunization - summary tables (January 2025)</p>
</div><br/><a href="null"/></li>
                    
                </ul>
                
                
                
                
                
                
            </td>
        </tr>
        

        
        <tr>
            <th scope="row"><b>Libraries: </b></th>
            <td style="padding-left: 4px;">
                <table class="grid-dict">
                    
                    <tr>
                        <td><a href="Library-IMMZD5DTPolioContraindicationsLogic.html">IMMZD5DTPolioContraindicationsLogic</a></td>
                    </tr>
                    
                </table>
            </td>
        </tr>
        

        
        <tr>
            <th scope="row"><b>Actions: </b></th>
            <td style="padding-left: 4px;">
                <table class="grid-dict">
                    
                    <tr>
                        <td>
                            
                            <b> Check for contraindications before administering the vaccine(s) due:</b> Contraindication for bOPV immunization
                            
                            <br/>
                            
                            
                            <b>If:</b>
                            
                            <i>Applicability:</i>
                            
                            Poliovirus vaccination with bOPV is contraindicated
                            
                            <i>(Poliovirus vaccination with bOPV is contraindicated)</i>
                            <br/>
                            
                            
                            
                            
                            <b>Then:</b> <i>Definition:</i> <a href="ActivityDefinition-IMMZD5DTMR.html">IMMZD5DTMR</a><br/>
                            
                            <i>Dynamic Values:</i><br/>
                            
                            id: <i>(Draft Medication Request ID for bOPV dose)</i>
                            <br/>
                            
                            medication: <i>(Concept { codes: { Code { system: 'http://smart.who.int/immunizations/CodeSystem/IMMZ.Z', code: 'DE30', display: 'Oral polio vaccines' } }, display: 'Oral polio vaccines' })</i>
                            <br/>
                            
                            
                            
                            
                        </td>
                    </tr>
                    
                    <tr>
                        <td>
                            
                            <b> Check for Guidance for the patient regarding IMMZ.D5.DT.Polio contraindications.:</b> Show Guidance for the patient regarding IMMZ.D5.DT.Polio contraindications.
                            
                            <br/>
                            
                            
                            <b>If:</b>
                            
                            <i>Applicability:</i>
                            
                            Has Guidance
                            
                            <i>(Has Guidance)</i>
                            <br/>
                            
                            
                            
                            
                            <b>Then:</b> <i>Definition:</i> <a href="ActivityDefinition-IMMZD2DTCR.html">IMMZ.D2.DT.CR</a><br/>
                            
                            <i>Dynamic Values:</i><br/>
                            
                            status: <i>('active')</i>
                            <br/>
                            
                            payload.contentString: <i>(Guidance)</i>
                            <br/>
                            
                            category.coding: <i>(Code { system: 'http://terminology.hl7.org/CodeSystem/communication-category', code: 'alert' })</i>
                            <br/>
                            
                            priority: <i>(Code { system: 'http://hl7.org/fhir/request-priority', code: 'routine' })</i>
                            <br/>
                            
                            
                            
                            
                        </td>
                    </tr>
                    
                </table>
            </td>
        </tr>
        
    </table>
</div>
</div>
  </text>
  <contained>
    <Library>
      <id value="effective-data-requirements"/>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-directReferenceCode">
        <valueCoding>
          <system
                  value="http://smart.who.int/immunizations/CodeSystem/IMMZ.D"/>
          <code value="DE161"/>
          <display value="Potential contraindications"/>
        </valueCoding>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-directReferenceCode">
        <valueCoding>
          <system
                  value="http://smart.who.int/immunizations/CodeSystem/IMMZ.D"/>
          <code value="DE167"/>
          <display value="Severe allergic reactions"/>
        </valueCoding>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-directReferenceCode">
        <valueCoding>
          <system
                  value="http://terminology.hl7.org/CodeSystem/condition-clinical"/>
          <code value="active"/>
        </valueCoding>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-directReferenceCode">
        <valueCoding>
          <system
                  value="http://terminology.hl7.org/CodeSystem/condition-clinical"/>
          <code value="recurrence"/>
        </valueCoding>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-directReferenceCode">
        <valueCoding>
          <system
                  value="http://terminology.hl7.org/CodeSystem/condition-clinical"/>
          <code value="relapse"/>
        </valueCoding>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-directReferenceCode">
        <valueCoding>
          <system
                  value="http://smart.who.int/immunizations/CodeSystem/IMMZ.D"/>
          <code value="DE200"/>
          <display value="Severely immunocompromised"/>
        </valueCoding>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-directReferenceCode">
        <valueCoding>
          <system
                  value="http://smart.who.int/immunizations/CodeSystem/IMMZ.D"/>
          <code value="DE187"/>
          <display value="Immunodeficiency syndromes"/>
        </valueCoding>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="Potential contraindications"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Potential contraindications observations
*/
define &quot;Potential contraindications&quot;:
  ([Observation: Concepts.&quot;Potential contraindications&quot;]).complete()"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="0"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severe allergic reactions Observation"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Observation for Severe allergic reactions
*/
define &quot;CI Severe allergic reactions Observation&quot;:
  &quot;Potential contraindications&quot; O
    where O.value ~ Concepts.&quot;CI-Severe allergic reactions&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="1"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severe allergic reactions Observation"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Observation for Severe allergic reactions
*/
define &quot;CI Severe allergic reactions Observation&quot;:
  Elements.&quot;CI Severe allergic reactions Observation&quot;.encounterOrOnBefore(EncounterId, Today)"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="2"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severe allergic reactions Condition"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Condition for Severe allergic reactions
*/
define &quot;CI Severe allergic reactions Condition&quot;:
  [Condition: Concepts.&quot;CI-Severe allergic reactions&quot;]"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="3"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severe allergic reactions Condition"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Condition for Severe allergic reactions
*/
define &quot;CI Severe allergic reactions Condition&quot;:
  Elements.&quot;CI Severe allergic reactions Condition&quot; C
    where C.prevalenceInterval() includes Today"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="4"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString
                       value="The client has history of severe allergic reactions"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@input: The client has history of severe allergic reactions
@pseudocode: &quot;Potential contraindications&quot; = &quot;Severe allergic reactions&quot;
*/
define &quot;The client has history of severe allergic reactions&quot;:
  exists &quot;CI Severe allergic reactions Observation&quot;
    or exists &quot;CI Severe allergic reactions Condition&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="5"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString
                       value="The client has history of severe allergic reactions"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@input: The client has history of severe allergic reactions
@pseudocode: &quot;Potential contraindications&quot; = &quot;Severe allergic reactions&quot;
@code: The client has history of severe allergic reactions-59
@decision: IMMZ.D5.DT.Polio contraindications
*/
define &quot;The client has history of severe allergic reactions&quot;:
  Encounter.&quot;The client has history of severe allergic reactions&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="6"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString
                       value="Poliovirus vaccination could be contraindicated. Clinical judgement required"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@output: Poliovirus vaccination could be contraindicated. Clinical judgement required
@pseudocode: &quot;Immunization recommendation status&quot; = &quot;Further evaluation needed&quot;
*/
define &quot;Poliovirus vaccination could be contraindicated. Clinical judgement required&quot;:
  Encounter.&quot;The client has history of severe allergic reactions&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="7"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString
                       value="Poliovirus vaccination could be contraindicated. Clinical judgement required Guidance"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@output: Poliovirus vaccination could be contraindicated. Clinical judgement required Guidance
@guidance: Do not vaccinate client with inactivated polio vaccine (IPV) if client has had a previous severe reaction or known allergy to streptomycin, neomycin or polymyxin B.
Do not vaccinate client with oral polio vaccine (OPV) if client has had a allergic reaction to OPV or to the trace antibiotics contained.
*/
define &quot;Poliovirus vaccination could be contraindicated. Clinical judgement required Guidance&quot;:
  'Do not vaccinate client with inactivated polio vaccine (IPV) if client has had a previous severe reaction or known allergy to streptomycin, neomycin or polymyxin B.
Do not vaccinate client with oral polio vaccine (OPV) if client has had a allergic reaction to OPV or to the trace antibiotics contained.'"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="8"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severely immunocompromised Observation"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Observation for Severely immunocompromised
*/
define &quot;CI Severely immunocompromised Observation&quot;:
  &quot;Potential contraindications&quot; O
    where O.value ~ Concepts.&quot;CI-Severely immunocompromised&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="9"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severely immunocompromised Observation"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Observation for Severely immunocompromised
*/
define &quot;CI Severely immunocompromised Observation&quot;:
  Elements.&quot;CI Severely immunocompromised Observation&quot;.encounterOrOnBefore(EncounterId, Today)"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="10"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severely immunocompromised Condition"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Condition for Severely immunocompromised
*/
define &quot;CI Severely immunocompromised Condition&quot;:
  [Condition: Concepts.&quot;CI-Severely immunocompromised&quot;]"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="11"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Severely immunocompromised Condition"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Condition for Severely immunocompromised
*/
define &quot;CI Severely immunocompromised Condition&quot;:
  Elements.&quot;CI Severely immunocompromised Condition&quot; C
    where C.prevalenceInterval() includes Today"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="12"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="The client is severely immunocompromised"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@input: The client is severely immunocompromised
@pseudocode: &quot;Potential contraindications&quot; = &quot;Severely immunocompromised&quot;
*/
define &quot;The client is severely immunocompromised&quot;:
  exists &quot;CI Severely immunocompromised Observation&quot;
    or exists &quot;CI Severely immunocompromised Condition&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="13"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="The client is severely immunocompromised"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@input: The client is severely immunocompromised
@pseudocode: &quot;Potential contraindications&quot; = &quot;Severely immunocompromised&quot;
@code: The client is severely immunocompromised-60
@decision: IMMZ.D5.DT.Polio contraindications
*/
define &quot;The client is severely immunocompromised&quot;:
  Encounter.&quot;The client is severely immunocompromised&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="14"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString
                       value="Poliovirus vaccination with bOPV is contraindicated Case 1"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@output: Poliovirus vaccination with bOPV is contraindicated Case 1
@pseudocode: Clinical judgement is required if vaccination with IPV is considered
&quot;Immunization recommendation status&quot; = &quot;Contraindicated&quot; (where &quot;Type of poliovirus dose&quot; = &quot;bOPV&quot;) AND &quot;Immunization recommendation status&quot; = &quot;Further evaluation needed&quot; (where &quot;Type of poliovirus dose&quot; = &quot;IPV&quot;)
*/
define &quot;Poliovirus vaccination with bOPV is contraindicated Case 1&quot;:
  Encounter.&quot;The client is severely immunocompromised&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="15"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Immunodeficiency syndromes Observation"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Observation for Immunodeficiency syndromes
*/
define &quot;CI Immunodeficiency syndromes Observation&quot;:
  &quot;Potential contraindications&quot; O
    where O.value ~ Concepts.&quot;CI-Immunodeficiency syndromes&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="16"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Immunodeficiency syndromes Observation"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Observation for Immunodeficiency syndromes
*/
define &quot;CI Immunodeficiency syndromes Observation&quot;:
  Elements.&quot;CI Immunodeficiency syndromes Observation&quot;.encounterOrOnBefore(EncounterId, Today)"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="17"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Immunodeficiency syndromes Condition"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Condition for Immunodeficiency syndromes
*/
define &quot;CI Immunodeficiency syndromes Condition&quot;:
  [Condition: Concepts.&quot;CI-Immunodeficiency syndromes&quot;]"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="18"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="CI Immunodeficiency syndromes Condition"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Condition for Immunodeficiency syndromes
*/
define &quot;CI Immunodeficiency syndromes Condition&quot;:
  Elements.&quot;CI Immunodeficiency syndromes Condition&quot; C
    where C.prevalenceInterval() includes Today"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="19"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="The client has immunodeficiency syndromes"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@input: The client has immunodeficiency syndromes
@pseudocode: &quot;Potential contraindications&quot; = &quot;Immunodeficiency syndromes&quot;
*/
define &quot;The client has immunodeficiency syndromes&quot;:
  exists &quot;CI Immunodeficiency syndromes Observation&quot;
    or exists &quot;CI Immunodeficiency syndromes Condition&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="20"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="The client has immunodeficiency syndromes"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@input: The client has immunodeficiency syndromes
@pseudocode: &quot;Potential contraindications&quot; = &quot;Immunodeficiency syndromes&quot;
@code: The client has immunodeficiency syndromes-60
@decision: IMMZ.D5.DT.Polio contraindications
*/
define &quot;The client has immunodeficiency syndromes&quot;:
  Encounter.&quot;The client has immunodeficiency syndromes&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="21"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString
                       value="Poliovirus vaccination with bOPV is contraindicated Case 2"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@output: Poliovirus vaccination with bOPV is contraindicated Case 2
@pseudocode: Clinical judgement is required if vaccination with IPV is considered
&quot;Immunization recommendation status&quot; = &quot;Contraindicated&quot; (where &quot;Type of poliovirus dose&quot; = &quot;bOPV&quot;) AND &quot;Immunization recommendation status&quot; = &quot;Further evaluation needed&quot; (where &quot;Type of poliovirus dose&quot; = &quot;IPV&quot;)
*/
define &quot;Poliovirus vaccination with bOPV is contraindicated Case 2&quot;:
  Encounter.&quot;The client has immunodeficiency syndromes&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="22"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString
                       value="Poliovirus vaccination with bOPV is contraindicated"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@output: Poliovirus vaccination with bOPV is contraindicated
@pseudocode: Clinical judgement is required if vaccination with IPV is considered
&quot;Immunization recommendation status&quot; = &quot;Contraindicated&quot; (where &quot;Type of poliovirus dose&quot; = &quot;bOPV&quot;) AND &quot;Immunization recommendation status&quot; = &quot;Further evaluation needed&quot; (where &quot;Type of poliovirus dose&quot; = &quot;IPV&quot;)
*/
define &quot;Poliovirus vaccination with bOPV is contraindicated&quot;:
  &quot;Poliovirus vaccination with bOPV is contraindicated Case 1&quot;
    or &quot;Poliovirus vaccination with bOPV is contraindicated Case 2&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="23"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString
                       value="Poliovirus vaccination with bOPV is contraindicated Guidance"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@output: Poliovirus vaccination with bOPV is contraindicated Guidance
@guidance = For bOPV dose, do not vaccinate client for bOPV dose as bOPV vaccination is contranindicated in severely immunocompromised clients. 
Check if vaccination with IPV is appropriate for the client, consider risks of vaccination and make a clinical judgement.
@guidance = For bOPV dose, do not vaccinate client for bOPV dose as bOPV vaccination is contranindicated in clients with immunodeficiency disorders.
Check if vaccination with IPV is appropriate for the client, consider risks of vaccination and make a clinical judgement.
*/
define &quot;Poliovirus vaccination with bOPV is contraindicated Guidance&quot;:
  case
    when &quot;Poliovirus vaccination with bOPV is contraindicated Case 1&quot; then 'For bOPV dose, do not vaccinate client for bOPV dose as bOPV vaccination is contranindicated in severely immunocompromised clients. 
Check if vaccination with IPV is appropriate for the client, consider risks of vaccination and make a clinical judgement.'
    when &quot;Poliovirus vaccination with bOPV is contraindicated Case 2&quot; then 'For bOPV dose, do not vaccinate client for bOPV dose as bOPV vaccination is contranindicated in clients with immunodeficiency disorders.
Check if vaccination with IPV is appropriate for the client, consider risks of vaccination and make a clinical judgement.'
    else ''
  end"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="24"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString value="Guidance"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@dynamicValue: Guidance
*/
define &quot;Guidance&quot;:
  case 
    when &quot;Poliovirus vaccination could be contraindicated. Clinical judgement required&quot; then &quot;Poliovirus vaccination could be contraindicated. Clinical judgement required Guidance&quot;
    when &quot;Poliovirus vaccination with bOPV is contraindicated&quot; then &quot;Poliovirus vaccination with bOPV is contraindicated Guidance&quot; 
    else ''
  end"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="25"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZElements"/>
        </extension>
        <extension url="name">
          <valueString value="Draft Medication Request for Patient"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@dataElement: Draft Medication Request for Patient
*/
define &quot;Draft Medication Request for Patient&quot;:
	[MedicationRequest] MR where MR.status = 'draft' and MR.intent = 'proposal'
	sort by date from (authoredOn as FHIR.dateTime) desc"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="26"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="Draft Medication Request for Patient"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@dataElement: Draft Medication Request for Patient
*/
define &quot;Draft Medication Request for Patient&quot;:
  Elements.&quot;Draft Medication Request for Patient&quot; MR
    where MR.encounter.references(EncounterId) 
      or MR.authoredOn.toInterval() same day or before Today
  	sort by date from (authoredOn as FHIR.dateTime) desc"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="27"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioEncounterElements"/>
        </extension>
        <extension url="name">
          <valueString value="Draft Medication Request for bOPV dose"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@internal: Draft Medication Request for bOPV dose
*/
define &quot;Draft Medication Request for bOPV dose&quot;:
  Encounter.&quot;Draft Medication Request for Patient&quot; MR
    where MR.medication in Concepts.&quot;Oral polio vaccines&quot;"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="28"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString value="Draft Medication Request ID for bOPV dose"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
  @dynamicValue: Draft Medication Request ID for Polio dose
  */
  define &quot;Draft Medication Request ID for bOPV dose&quot;:
    First(Encounter.&quot;Draft Medication Request for bOPV dose&quot;).id"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="29"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZD5DTPolioContraindicationsLogic"/>
        </extension>
        <extension url="name">
          <valueString value="Has Guidance"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define &quot;Has Guidance&quot;:
  &quot;Guidance&quot; is not null and &quot;Guidance&quot; != ''"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="30"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="IMMZCommon"/>
        </extension>
        <extension url="name">
          <valueString value="encounterOrOnBefore"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/**
 * @description: Gets observation from an encounter or on or before a date
 */
define fluent function encounterOrOnBefore(observations List&lt;Observation&gt;, EncounterId String, beforeDate Date):
  observations O where
    (O.encounter.references(EncounterId)
      or O.effective.toInterval() starts same day or before beforeDate)"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="31"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="WHOCommon"/>
        </extension>
        <extension url="name">
          <valueString value="references"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@description: Returns true if the given reference is to the given resourceId
@comment: Returns true if the `resourceId` parameter exactly equals the tail of the given reference.
NOTE: This function assumes resources from the same source server.
*/
define fluent function references(reference FHIR.Reference, resourceId String):
  resourceId = Last(Split(reference.reference, '/'))"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="32"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToString"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToString(value string): value.value"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="33"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="WHOCommon"/>
        </extension>
        <extension url="name">
          <valueString value="complete"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define fluent function complete(observations List&lt;Observation&gt;):
  observations O where O.status in { 'final', 'amended', 'corrected' }"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="34"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToString"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToString(value ObservationStatus): value.value"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="35"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToConcept"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToConcept(concept FHIR.CodeableConcept):
    if concept is null then
        null
    else
        System.Concept {
            codes: concept.coding C return ToCode(C),
            display: concept.text.value
        }"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="36"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToCode"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToCode(coding FHIR.Coding):
    if coding is null then
        null
    else
        System.Code {
          code: coding.code.value,
          system: coding.system.value,
          version: coding.version.value,
          display: coding.display.value
        }"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="37"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="WHOCommon"/>
        </extension>
        <extension url="name">
          <valueString value="prevalenceInterval"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
@description: Returns an interval representing the normalized prevalence period of a given Condition resource.
@comment: Uses the toInterval and toAbatementInterval functions to determine the widest potential interval from
onset to abatement as specified in the given Condition.
*/
define fluent function prevalenceInterval(condition Condition):
if condition.clinicalStatus ~ &quot;active&quot;
  or condition.clinicalStatus ~ &quot;recurrence&quot;
  or condition.clinicalStatus ~ &quot;relapse&quot; then
  Interval[start of condition.onset.toInterval(), end of condition.abatementInterval()]
else
  (end of condition.abatementInterval()) abatementDate
    return 
	  if abatementDate is null then
        Interval[start of condition.onset.toInterval(), abatementDate)
      else
        Interval[start of condition.onset.toInterval(), abatementDate]"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="38"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="WHOCommon"/>
        </extension>
        <extension url="name">
          <valueString value="abatementInterval"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="// Was getting error on this for this particular choice set not being found


/*
@description: Returns an interval representing the normalized Abatement of a given Condition resource.
@comment: NOTE: Due to the complexity of determining an interval from a String, this function will throw
a run-time exception if used with a Condition instance that has a String as the abatement value.
*/
define fluent function abatementInterval(condition Condition):
  if condition.abatement is FHIR.dateTime then
    Interval[FHIRHelpers.ToDateTime(condition.abatement as FHIR.dateTime), FHIRHelpers.ToDateTime(condition.abatement as FHIR.dateTime)]
  else if condition.abatement is FHIR.Period then
    FHIRHelpers.ToInterval(condition.abatement as FHIR.Period)
  else if condition.abatement is FHIR.string then
    Message(null as Interval&lt;DateTime&gt;, true, 'NOT_IMPLEMENTED', 'Error', 'Calculation of an interval from a String value is not supported')
  else if condition.abatement is FHIR.Age then
    Interval[FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity(condition.abatement as FHIR.Age),
      FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity(condition.abatement as FHIR.Age) + 1 year)
  else if condition.abatement is FHIR.Range then
    Interval[FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity((condition.abatement as FHIR.Range).low),
      FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity((condition.abatement as FHIR.Range).high) + 1 year)
  else if condition.abatement is FHIR.boolean then
    Interval[end of condition.onset.toInterval(), condition.recordedDate)
  else 
    null"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="39"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToDateTime"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToDateTime(value dateTime): value.value"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="40"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToInterval"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToInterval(period FHIR.Period):
    if period is null then
        null
    else
        if period.&quot;start&quot; is null then
            Interval(period.&quot;start&quot;.value, period.&quot;end&quot;.value]
        else
            Interval[period.&quot;start&quot;.value, period.&quot;end&quot;.value]"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="41"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToDate"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToDate(value date): value.value"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="42"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToQuantity"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToQuantity(quantity FHIR.Quantity):
    case
        when quantity is null then null
        when quantity.value is null then null
        when quantity.comparator is not null then
            Message(null, true, 'FHIRHelpers.ToQuantity.ComparatorQuantityNotSupported', 'Error', 'FHIR Quantity value has a comparator and cannot be converted to a System.Quantity value.')
        when quantity.system is null or quantity.system.value = 'http://unitsofmeasure.org'
              or quantity.system.value = 'http://hl7.org/fhirpath/CodeSystem/calendar-units' then
            System.Quantity { value: quantity.value.value, unit: ToCalendarUnit(Coalesce(quantity.code.value, quantity.unit.value, '1')) }
        else
            Message(null, true, 'FHIRHelpers.ToQuantity.InvalidFHIRQuantity', 'Error', 'Invalid FHIR Quantity code: ' &amp; quantity.unit.value &amp; ' (' &amp; quantity.system.value &amp; '|' &amp; quantity.code.value &amp; ')')
    end"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="43"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToCalendarUnit"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToCalendarUnit(unit System.String):
    case unit
        when 'ms' then 'millisecond'
        when 's' then 'second'
        when 'min' then 'minute'
        when 'h' then 'hour'
        when 'd' then 'day'
        when 'wk' then 'week'
        when 'mo' then 'month'
        when 'a' then 'year'
        else unit
    end"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="44"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToString"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToString(value MedicationRequestStatus): value.value"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="45"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToString"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToString(value MedicationRequestIntent): value.value"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="46"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="WHOCommon"/>
        </extension>
        <extension url="name">
          <valueString value="toInterval"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="/*
From FHIRCommon 4.1.0:
*/

/*
@description: Normalizes a value that is a choice of timing-valued types to an equivalent interval
@comment: Normalizes a choice type of FHIR.dateTime, FHIR.Period, FHIR.Timing, FHIR.instance, FHIR.string, FHIR.Age, or FHIR.Range types
to an equivalent interval. This selection of choice types is a superset of the majority of choice types that are used as possible
representations for timing-valued elements in FHIR, allowing this function to be used across any resource.

The input can be provided as a dateTime, Period, Timing, instant, string, Age, or Range.
The intent of this function is to provide a clear and concise mechanism to treat single
elements that have multiple possible representations as intervals so that logic doesn't have to account
for the variability. More complex calculations (such as medication request period or dispense period
calculation) need specific guidance and consideration. That guidance may make use of this function, but
the focus of this function is on single element calculations where the semantics are unambiguous.
If the input is a dateTime, the result a DateTime Interval beginning and ending on that dateTime.
If the input is a Period, the result is a DateTime Interval.
If the input is a Timing, an error is raised indicating a single interval cannot be computed from a Timing.
If the input is an instant, the result is a DateTime Interval beginning and ending on that instant.
If the input is a string, an error is raised indicating a single interval cannot be computed from a string.
If the input is an Age, the result is a DateTime Interval beginning when the patient was the given Age,
and ending immediately prior to when the patient was the given Age plus one year.
If the input is a Range, the result is a DateTime Interval beginning when the patient was the Age given
by the low end of the Range, and ending immediately prior to when the patient was the Age given by the
high end of the Range plus one year.

NOTE: Due to the
complexity of determining a single interval from a Timing or String type, this function will throw a run-time exception if it is used
with a Timing or String.
*/
define fluent function toInterval(choice Choice&lt;FHIR.dateTime, FHIR.Period, FHIR.Timing, FHIR.instant, FHIR.string, FHIR.Age, FHIR.Range&gt;):
  case
    when choice is FHIR.dateTime then
      Interval[FHIRHelpers.ToDateTime(choice as FHIR.dateTime), FHIRHelpers.ToDateTime(choice as FHIR.dateTime)]
    when choice is FHIR.Period then
      FHIRHelpers.ToInterval(choice as FHIR.Period)
    when choice is FHIR.instant then
      Interval[FHIRHelpers.ToDateTime(choice as FHIR.instant), FHIRHelpers.ToDateTime(choice as FHIR.instant)]
    when choice is FHIR.Age then
      Interval[FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity(choice as FHIR.Age),
        FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity(choice as FHIR.Age) + 1 year)
    when choice is FHIR.Range then
      Interval[FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity((choice as FHIR.Range).low),
        FHIRHelpers.ToDate(Patient.birthDate) + FHIRHelpers.ToQuantity((choice as FHIR.Range).high) + 1 year)
    when choice is FHIR.Timing then
      Message(null as Interval&lt;DateTime&gt;, true, 'NOT_IMPLEMENTED', 'Error', 'Calculation of an interval from a Timing value is not supported')
    when choice is FHIR.string then
      Message(null as Interval&lt;DateTime&gt;, true, 'NOT_IMPLEMENTED', 'Error', 'Calculation of an interval from a String value is not supported')
    else
      null as Interval&lt;DateTime&gt;
  end"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="47"/>
        </extension>
      </extension>
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/cqf-logicDefinition">
        <extension url="libraryName">
          <valueString value="FHIRHelpers"/>
        </extension>
        <extension url="name">
          <valueString value="ToDateTime"/>
        </extension>
        <extension url="statement">
          <valueString
                       value="define function ToDateTime(value instant): value.value"/>
        </extension>
        <extension url="displaySequence">
          <valueInteger value="48"/>
        </extension>
      </extension>
      <name value="EffectiveDataRequirements"/>
      <status value="active"/>
      <type>
        <coding>
          <system value="http://terminology.hl7.org/CodeSystem/library-type"/>
          <code value="module-definition"/>
        </coding>
      </type>
      <relatedArtifact>
        <type value="depends-on"/>
        <display value="FHIR model information"/>
        <resource
                  value="http://fhir.org/guides/cqf/common/Library/FHIR-ModelInfo|4.0.1"/>
      </relatedArtifact>
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IMMZ.D5.DT.Polio contraindications"/>
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