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| Orders and Observations Work Group | Maturity Level : N/A | Standards Status : Informative | Compartments : Device , Encounter , Patient , Practitioner , RelatedPerson |
Raw XML ( canonical form + also see XML Format Specification )
Simple Weight Example (id = "example")
<?xml version="1.0" encoding="UTF-8"?><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: Observation</b> <a name="example"> </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 "example" </p> </div> <p> <b> status</b> : <span title=" the mandatory quality flags: ">final</span> </p> <p> <b> category</b> : <span title=" category code is A code that classifies the general type of observation beingmade. This is used for searching, sorting and display purposes. Observations are often coded in multiple code systems.made. This is used for searching, sorting and display purposes. ">Vital Signs <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="http://terminology.hl7.org/5.4.0/CodeSystem-observation-category.html">Observation Category Codes</a> #vital-signs)</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 specificcodes as shown herecodes as shown here - snomed provides a clinically relevant code that is usually less granularthan LOINCthan LOINC - the source system provides its own code, which may be less or more granularthan LOINC 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 asthan LOINC ">Body Weight <span style="background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki"> (<a href="https://loinc.org/">LOINC</a> #29463-7; <a href="https://loinc.org/">LOINC</a> #3141-9 "Body weight Measured"; <a href="https://browser.ihtsdotools.org/">SNOMED CT</a> #27113001 "Body weight"; clinical-codes#body-weight)</span> </span> </p> <p> <b> subject</b> : <a href="patient-example.html">Patient/example</a> "Peter CHALMERS"</p> <p> <b> encounter</b> : <a href="encounter-example.html">Encounter/example</a> </p> <p> <b> effective</b> : 2016-03-28</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 "tablet"), etc. For these, something else is required (e.g. SNOMEDCT)CT) ">185 lbs<span style="background: LightGoldenRodYellow"> (Details: UCUM code [lb_av] = 'lb_av')</span> </span> </p> </div> </text> <status value="final"/> <!-- category code is A code that classifies the general type of observation beingmade. This is used for searching, sorting and display purposes. --> <!-- Observations are often coded in multiple code systems.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 specificcodes as shown herecodes as shown here - snomed provides a clinically relevant code that is usually less granularthan LOINCthan LOINC - the source system provides its own code, which may be less or more granularthan LOINC --> <!-- 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) -->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 >
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.
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