<?xml version=“1.0” encoding=“UTF-8”?> <Observation xmlns=“hl7.org/fhir”>
<id value="blood-pressure-cancel"/> <meta> <profile value="http://hl7.org/fhir/StructureDefinition/vitalsigns"/> <security> <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/> <code value="HTEST"/> <display value="test health data"/> </security> </meta><!-- EH Narrative created by build <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml">Sept 17, 2012: Systolic Blood pressure 107/60 mmHg (low)</div> </text> --><identifier> <system value="urn:ietf:rfc:3986"/> <value value="urn:uuid:187e0c12-8dd2-67e2-99b2-bf273c878281"/> </identifier> <status value="cancelled"/> <category> <coding> <system value="http://terminology.hl7.org/CodeSystem/observation-category"/> <code value="vital-signs"/> <display value="Vital Signs"/> </coding> </category> <code><!-- replaced by 85354-9 <coding> <system value="http://loinc.org"/> <code value="85354-9"/> <display value="Blood pressure systolic & diastolic"/> </coding> --><coding> <system value="http://loinc.org"/> <code value="85354-9"/> <display value="Blood pressure panel with all children optional"/> </coding> <text value="Blood pressure systolic & diastolic"/> </code> <subject> <reference value="Patient/example"/> </subject> <effectiveDateTime value="2012-09-17"/> <performer> <reference value="Practitioner/example"/> </performer><!-- an interpretation offered to the combination observation generally, it would only be appropriate to offer an interpretation of an observation that has no value if it has "COMP" (component) observations --><interpretation> <coding> <system value="http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation"/> <code value="L"/> <display value="low"/> </coding> <text value="Below low normal"/> </interpretation> <note><text value="In this example, the blood pressure measurements are not available due to cancellation of the order. Data absent reason is present for each component"/></note><!-- for an observation with components, these cannot disagree with the flags on the components --><bodySite> <coding> <system value="http://snomed.info/sct"/> <code value="368209003"/> <display value="Right arm"/> </coding> </bodySite> <component><!-- Observations are often coded in multiple code systems. - LOINC provides a very specific code (though not usefully more specific in this particular case) - 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 this instance shows the concept. The other codes only have a LOINC code --><code><!-- LOINC - always recommended to have a LOINC code --><coding> <system value="http://loinc.org"/> <code value="8480-6"/> <display value="Systolic blood pressure"/> </coding><!-- SNOMED CT Codes - becoming more common --><coding> <system value="http://snomed.info/sct"/> <code value="271649006"/> <display value="Systolic blood pressure"/> </coding><!-- Also, a local code specific to the source system --><coding> <system value="http://acme.org/devices/clinical-codes"/> <code value="bp-s"/> <display value="Systolic Blood pressure"/> </coding><!-- that shows the concept. The next two names only have a LOINC code --></code><!-- no value due to some error <valueQuantity> <value value="107"/> <unit value="mm[Hg]"/> </valueQuantity> --><dataAbsentReason> <coding> <system value="http://terminology.hl7.org/CodeSystem/data-absent-reason"/> <code value="not-asked"/> <display value="Not Asked"/> </coding> </dataAbsentReason> </component> <component> <code> <coding> <system value="http://loinc.org"/> <code value="8462-4"/> <display value="Diastolic blood pressure"/> </coding> </code><!-- no value due to some error <valueQuantity> <value value="60"/> <unit value="mm[Hg]"/> </valueQuantity> --><dataAbsentReason> <coding> <system value="http://terminology.hl7.org/CodeSystem/data-absent-reason"/> <code value="not-asked"/> <display value="Not Asked"/> </coding> </dataAbsentReason> </component>
</Observation>