FHIRPath Specification, published by Implementable Technology Specifications WG. This guide is not an authorized publication; it is the continuous build for version 2.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/FHIRPath/ and changes regularly. See the Directory of published versions
<Observation xmlns="http://hl7.org/fhir">
<id value="example"/>
<!-- the mandatory quality flags: -->
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: example</p><p><b>status</b>: final</p><p><b>category</b>: Vital Signs <span>(Details : {http://terminology.hl7.org/CodeSystem/observation-category code 'vital-signs' = 'Vital Signs', given as 'Vital Signs'})</span></p><p><b>code</b>: Body Weight <span>(Details : {LOINC code '29463-7' = 'Body weight', given as 'Body Weight'}; {LOINC code '3141-9' = 'Body weight Measured', given as 'Body weight Measured'}; {SNOMED CT code '27113001' = 'Body weight', given as 'Body weight'}; {http://acme.org/devices/clinical-codes code 'body-weight' = 'body-weight', given as 'Body Weight'})</span></p><p><b>subject</b>: <a>Patient/example</a></p><p><b>encounter</b>: <a>Encounter/example</a></p><p><b>effective</b>: 28/03/2016</p><p><b>value</b>: 185 lbs<span> (Details: UCUM code [lb_av] = 'lb_av')</span></p></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="vital-signs"/>
<display value="Vital Signs"/>
</coding>
</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
-->
<code>
<!-- LOINC - always recommended to have a LOINC code -->
<coding>
<system value="http://loinc.org"/>
<code value="29463-7"/>
<!-- more generic methodless LOINC -->
<display value="Body Weight"/>
</coding>
<coding>
<system value="http://loinc.org"/>
<code value="3141-9"/>
<!-- translation is more specific method = measured LOINC -->
<display value="Body weight Measured"/>
</coding>
<!-- SNOMED CT Codes - becoming more common -->
<coding>
<system value="http://snomed.info/sct"/>
<code value="27113001"/>
<display value="Body weight"/>
</coding>
<!-- Also, a local code specific to the source system -->
<coding>
<system value="http://acme.org/devices/clinical-codes"/>
<code value="body-weight"/>
<display value="Body Weight"/>
</coding>
</code>
<subject>🔗
<reference value="Patient/example"/>
</subject>
<!-- encounter>
<reference value="Encounter/example"/>
</encounter -->
<effectiveDateTime value="2016-03-28"/>
<!-- 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="185"/>
<unit value="lbs"/>
<system value="http://unitsofmeasure.org"/>
<code value="[lb_av]"/>
</valueQuantity>
</Observation>