<?xml version="1.0" encoding="UTF-8"?><Specimen xmlns="http://hl7.org/fhir">
  <id value="101"/>
  <!-- text>
    <status value="generated" />
    <div xmlns="http://www.w3.org/1999/xhtml">[Put rendering here]</div>
  </text> -->
  <meta>
    <security>
      <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/>
      <code value="HTEST"/>
      <display value="test health data"/>
    </security>
  </meta>
  <identifier>
    <!--  a specimen identifier - e.g. assigned when the specimen was taken this is often not done  -->
    <system value="http://ehr.acme.org/identifiers/collections"/>
    <value value="23234352356"/>
  </identifier>
  <identifier>
    <type>
      <coding>
        <system value="http://terminology.hl7.org/CodeSystem/v2-0203"/>
        <code value="ACSN"/>
        <display value="Accession ID"/>
      </coding>
    </type>
    <system value="http://lab.acme.org/specimens/2011"/>
    <value value="X352356"/>
  </identifier>
  <status value="available"/>
  <type>
    <!-- 
   Type is a loosely defined field because there is such a lot of variation in how it is used.
   The principal variation is how much information that could be represented elsewhere is also
   represented here. For instance, here's some possible types:
     lithium heparin plasma   (+ .container.additive) (e.g. SNOMED CT 446272009)
     transfusion bag of blood (+ container.type)
     Peritoneal lavage        (+ collection.bodySite)
   If the type includes other fields, it would be normal not to populate the other fields

   Note that this practice is so widespread that it's pointless to try and stop it  -->
    <coding>
      <system value="http://snomed.info/sct"/>
      <code value="122555007"/>
      <display value="Venous blood specimen"/>
    </coding>
  </type>
  <subject>
    <reference value="Patient/example"/>
    <display value="Peter Patient"/>
  </subject>
  <receivedTime value="2011-03-04T07:03:00Z"/>
  <request>
    <!--  this points to the order that caused the sample to be drawn  -->
    <reference value="ServiceRequest/example"/>
  </request>
  <collection>
    <collector>
      <!--  in practice, collecter is almost always recorded  -->
      <reference value="Practitioner/example"/>
    </collector>
    <!--  the time of collection is usually required. Usually a point in time, but can be a period
      (collectedPeriod) if it's a timed collection (e.g. a 24 hour urine)  -->
    <collectedDateTime value="2011-05-30T06:15:00Z"/>
    <!--  e.g. full  -->
    <quantity>
      <value value="6"/>
      <unit value="mL"/>
    </quantity>
    <!--  method is usually implied by type  -->
    <method>
      <coding>
        <system value="http://terminology.hl7.org/CodeSystem/v2-0488"/>
        <code value="LNV"/>
      </coding>
    </method>
  </collection>
  <!-- 
      the container identifier is not the same as the specimen identifier
      usually, it is pre-printed/implanted etc.on the container prior to
      use. It might a RFID in the container, or it might be a UDI
      (http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/UniqueDeviceIdentification/)
     -->
  <container>
    <deviceCanonical value="http://hl7.org/fhir/Device/device-example-specimen-container-green-gel-vacutainer"/>
    <!--  if there's only one container, then this value is the same
     as .collection.quantity (usually). This is for when there is more
     than one container  -->
    <specimenQuantity>
      <value value="3"/>
      <unit value="mL"/>
    </specimenQuantity>
  </container>
  <note>
    <text value="Specimen is grossly lipemic"/>
  </note>
</Specimen>