An example of a herd screening ELISA assay for Mycoplasmal Pneumonia in Pigs. (id = "herd1")

<?xml version="1.0" encoding="UTF-8"?>

<Observation xmlns="http://hl7.org/fhir">
  <id value="herd1"/> 
  
  display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px
       solid #8da1b4; border-radius: 5px; line-height: 60%#80219-9 &quot;Mycoplasma hyopneumoniae Ab sample/Positive control in Serum by Immunoassay&quot;;
           clinical-codes#Mycoplasma &quot;Mycoplasma&quot;)
  <!--    category code is A code that classifies the general type of observation being made.
   This is used for searching, sorting and display purposes.   -->

      <!--     the mandatory status     -->
  <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml"><p> <b> Generated Narrative: Observation</b> <a name="herd1"> </a> </p> <div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border:
       1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px">Resource Observation &quot;herd1&quot; </p> </div> <p> <b> status</b> : <span title="   the mandatory status   ">final</span> </p> <p> <b> category</b> : <span title="  category code is A code that classifies the general type of observation being
         made. This is used for searching, sorting and display purposes. ">Laboratory <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="http://terminology.hl7.org/4.0.0/CodeSystem-observation-category.html">Observation Category Codes</a> #laboratory)</span> </span> </p> <p> <b> code</b> : <span title="  
    Observations are often coded in multiple code systems.
      - LOINC provides codes of varying granularity (though not usefully more specific
         in this particular case) and more generic LOINCs  can be mapped to more specific
         codes as shown here
      - snomed provides a clinically relevant code that is usually less granular
         than LOINC
      - the source system provides its own code, which may be less or more granular
         than LOINC
    ">Mycoplasma hyopneumoniae - MHP <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="https://loinc.org/">LOINC</a> #80219-9 &quot;Mycoplasma hyopneumoniae Ab sample/Positive control in Serum by

             Immunoassay&quot;; clinical-codes#Mycoplasma &quot;Mycoplasma&quot;)</span> </span> </p> <p> <b> subject</b> : <span title="    subject is a herd of 2500 breding sows  "><a href="group-example-herd1.html">Group/herd1</a>  &quot;Breeding herd&quot;</span> </p> <p> <b> encounter</b> : <span> : part of a health assurance program</span> </p> <p> <b> effective</b> : 2017-11-20</p> <p> <b> value</b> : <span title="   In FHIR, units may be represented twice. Once in the
    agreed human representation, and once in a coded form.
    Both is best, since it's not always possible to infer
    one from the other in code.

    When a computable unit is provided, UCUM (http://unitsofmeasure.org)
    is always preferred, but it doesn't provide notional units (such as
    &quot;tablet&quot;), etc. For these, something else is required (e.g. SNOMED
         CT)
     ">0.2 % (sample/positive control)<span style="background: LightGoldenRodYellow"> (Details: UCUM code % = '%')</span> </span> </p> <p> <b> interpretation</b> : Negative <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="http://terminology.hl7.org/4.0.0/CodeSystem-v3-ObservationInterpretation.html">ObservationInterpretation</a> #NEG)</span> </p> <p> <b> specimen</b> : <span title="  Specimen is a pooled serology sample of 30 animals. "><a href="specimen-example-pooled-serum.html">Specimen/pooled-serum: 30 serum</a> </span> </p> <h3> ReferenceRanges</h3> <table class="grid"><tr> <td> -</td> <td> <b> Text</b> </td> </tr> <tr> <td> *</td> <td> &gt;0.4 Positive; 0.3 to 0.4 Suspect &lt; 0.3 Negative</td> </tr> </table> </div> </text> <status value="final"/> 
      <!--    category code is A code that classifies the general type of observation being

   made. This is used for searching, sorting and display purposes.   -->

  <category> 
    <coding> 
      <system value="http://terminology.hl7.org/CodeSystem/observation-category"/> 
      <code value="laboratory"/> 
      <display value="Laboratory"/> 
    </coding> 
    <text value="Laboratory"/> 
  </category> 
  <!--    

      <!--    
    Observations are often coded in multiple code systems.
      - LOINC provides codes of varying granularity (though not usefully more specific
   in this particular case) and more generic LOINCs  can be mapped to more specific codes
   as shown here
      - snomed provides a clinically relevant code that is usually less granular than
   LOINC
      - the source system provides its own code, which may be less or more granular than
   LOINC

   in this particular case) and more generic LOINCs  can be mapped to more specific
   codes as shown here
      - snomed provides a clinically relevant code that is usually less granular
   than LOINC
      - the source system provides its own code, which may be less or more granular
   than LOINC

      -->
  <code> 
    

        <!--     LOINC - always recommended to have a LOINC code     -->
    <coding> 
      <system value="http://loinc.org"/> 
      <code value="80219-9"/> 
      

          <!--   more generic methodless LOINC   -->
      <display value="Mycoplasma hyopneumoniae Ab sample/Positive control in Serum by Immunoassay"/> 
    </coding> 
    

        <!--     Also, a local code specific to the source system     -->
    <coding> 
      <system value="http://acme.org/devices/clinical-codes"/> 
      <code value="Mycoplasma"/> 
      <display value="Mycoplasma"/> 
    </coding> 
    <text value="Mycoplasma hyopneumoniae - MHP"/> 
  </code> 
  

      <!--      subject is a herd of 2500 breding sows    -->
  <subject> 
    <reference value="Group/herd1"/> 
  </subject> 
  <encounter> 
    <display value="part of a health assurance program"/> 
  </encounter> 
  <effectiveDateTime value="2017-11-20"/> 
  <!--     In FHIR, units may be represented twice. Once in the

      <!--     In FHIR, units may be represented twice. Once in the
    agreed human representation, and once in a coded form.
    Both is best, since it's not always possible to infer
    one from the other in code.

    When a computable unit is provided, UCUM (http://unitsofmeasure.org)
    is always preferred, but it doesn't provide notional units (such as
    "tablet"), etc. For these, something else is required (e.g. SNOMED CT)
       -->
  <valueQuantity> 
    <value value="0.2"/> 
    <unit value="% (sample/positive control)"/> 
    <system value="http://unitsofmeasure.org"/> 
    <code value="%"/> 
  </valueQuantity> 
  <interpretation> 
    <coding> 
      <system value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation"/> 
      <code value="NEG"/> 
      <display value="Negative"/> 
    </coding> 
    <text value="Negative"/> 
  </interpretation> 
  

      <!--    Specimen is a pooled serology sample of 30 animals.   -->
  <specimen> 
    <reference value="Specimen/pooled-serum"/> 
    <display value="30 serum"/> 
  </specimen> 
  <referenceRange> 
    <text value="&gt;0.4 Positive; 0.3 to 0.4 Suspect &lt; 0.3 Negative"/> 
  </referenceRange> 


</

Observation

>