LungDiagnosis_PD1.xml

<PlanDefinition xmlns="http://hl7.org/fhir">
   <identifier>
      <system value="http://someIdentifier.com"></system>
      <value value="LungDiagnosis_PD1"></value>
   </identifier>
   <name value="Lung Cancer 12 month followup"></name>
   <title value="Lung Cancer 12 month followup"></title>
   <type>
      <coding>
         <code value="workflow-definition"></code>
      </coding>
   </type>
   <status value="active"></status>
   <action>
      <title value="Lung_Cancer_12_month_followup"></title>
      <trigger>
         <type value="data-added"></type>
         <data>
            <type value="Observation"></type>
            <codeFilter>
               <code>
                  <system value="http://radlex.org"></system>
                  <code value="RID50136"></code>
                  <display value="Lung-RADS 1"></display>
               </code>
            </codeFilter>
         </data>
      </trigger>
      <condition>
         <kind value="start"></kind>
         <expression>
            <language value="text/cql"></language>
            <expression value="Needs Low Dose Chest CT"></expression>
            <!-- 1. Check if there are existing low dose cts between today and 5 years prior to today
2. If these are multiple, sort by ascending date 
3. If the last date + 5 years &gt;= today's date then order low does ct 
4. Do within one year of last chest ct  -->
         </expression>
      </condition>
   </action>
</PlanDefinition>