<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="conditional-read-status"/><meta><lastUpdated value="2022-05-28T13:47:40.239+11:00"/><profile value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml">
      
      <h2>ConditionalReadStatus</h2>
      
      <div>
        
        <p>A code that indicates how the server supports conditional read.</p>

      
      </div>
      
      <p>This code system http://hl7.org/fhir/conditional-read-status defines the following codes:</p>
      
      <table class="codes">
        
        <tr>
          
          <td style="white-space:nowrap">
            
            <b>Code</b>
          
          </td>
          
          <td>
            
            <b>Display</b>
          
          </td>
          
          <td>
            
            <b>Definition</b>
          
          </td>
        
        </tr>
        
        <tr>
          
          <td style="white-space:nowrap">not-supported
            
            <a name="conditional-read-status-not-supported"> </a>
          
          </td>
          
          <td>Not Supported</td>
          
          <td>No support for conditional reads.</td>
        
        </tr>
        
        <tr>
          
          <td style="white-space:nowrap">modified-since
            
            <a name="conditional-read-status-modified-since"> </a>
          
          </td>
          
          <td>If-Modified-Since</td>
          
          <td>Conditional reads are supported, but only with the If-Modified-Since HTTP Header.</td>
        
        </tr>
        
        <tr>
          
          <td style="white-space:nowrap">not-match
            
            <a name="conditional-read-status-not-match"> </a>
          
          </td>
          
          <td>If-None-Match</td>
          
          <td>Conditional reads are supported, but only with the If-None-Match HTTP Header.</td>
        
        </tr>
        
        <tr>
          
          <td style="white-space:nowrap">full-support
            
            <a name="conditional-read-status-full-support"> </a>
          
          </td>
          
          <td>Full Support</td>
          
          <td>Conditional reads are supported, with both If-Modified-Since and If-None-Match HTTP Headers.</td>
        
        </tr>
      
      </table>
    
    </div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="fhir"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"><valueCode value="normative"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version"><valueCode value="4.0.0"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"><valueInteger value="5"/></extension><url value="http://hl7.org/fhir/conditional-read-status"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.4.201"/></identifier><version value="4.3.0"/><name value="ConditionalReadStatus"/><title value="ConditionalReadStatus"/><status value="active"/><experimental value="false"/><date value="2021-01-17T07:06:13+11:00"/><publisher value="HL7 (FHIR Project)"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><description value="A code that indicates how the server supports conditional read."/><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/conditional-read-status"/><content value="complete"/><concept><code value="not-supported"/><display value="Not Supported"/><definition value="No support for conditional reads."/></concept><concept><code value="modified-since"/><display value="If-Modified-Since"/><definition value="Conditional reads are supported, but only with the If-Modified-Since HTTP Header."/></concept><concept><code value="not-match"/><display value="If-None-Match"/><definition value="Conditional reads are supported, but only with the If-None-Match HTTP Header."/></concept><concept><code value="full-support"/><display value="Full Support"/><definition value="Conditional reads are supported, with both If-Modified-Since and If-None-Match HTTP Headers."/></concept></CodeSystem>