Valueset-observation-methods.xml

Definition for Value SetObservation Methods

Raw XML

<ValueSet xmlns="http://hl7.org/fhir">
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">
      
      <p>This value sets refers to 3 different sources of observation method codes, each with issues:</p>
      
      <ul>
        
        <li>v3 Code System &quot;ObservationMethod&quot;: this is very incomplete and not currently
           maintained</li>      
        
        <li>SNOMED CT Techniques (descendents of 272394005): this is very incomplete, more than just
           observation methods, and has SNOMED CT licensing issues</li>      
        
        <li>LOINC Method List: this is less incomplete, but not designed to be used as a formal code
           system</li>      
      
      </ul>
    
    </div>
  </text>
  <identifier value="http://hl7.org/fhir/vs/observation-methods"/>
  <name value="Observation Methods"/>
  <publisher value="FHIR Project team"/>
  <telecom>
    <system value="url"/>
    <value value="http://hl7.org/fhir"/>
  </telecom>
  <description value="Method Codes defined as part of v3"/>
  <status value="draft"/><!--   LOINC doesn't formally expose the methods as set of codes, but we want to use them here?
     so we define this as a set of new codes. TODO: discuss this with LOINC   -->
  <compose>
    <include>
      <system value="http://hl7.org/fhir/v3/ObservationMethod"/>
    </include>
    <include>
      <system value="http://snomed.info/sct"/>
      <filter><!--   todo: work this over. what this means is any concepts where they have is-a with 404684003
         how should this be done?   -->
        <property value="concept"/>
        <op value="is-a"/>
        <value value="272394005"/>
      </filter>
    </include>
    <include>
      <system value="http://loinc.org"/>
      <filter><!--   
          All LOINC codes that are methods. 
          These will all have codes starting with &quot;LP&quot;
          -->
        <property value="Type"/>
        <op value="="/>
        <value value="Method"/>
      </filter>
    </include>
  </compose>
</ValueSet>