Simple Weight Example (id = "example")

Raw XML

<Observation xmlns="http://hl7.org/fhir">
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">Jan 30 2014: Body Weight = 185 lbs</div>
  </text>
  
  <!--   
    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 it's own code, which may be less or more granular than
   LOINC
    -->
  <name>
    <!--   LOINC - always recommended to have a LOINC code   -->
    <coding>
      <system value="http://loinc.org"/>
      <code value="3141-9"/>
      <display value="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>
  </name>

  <!--   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) 
     -->
  <valueQuantity>
    <value value="185"/>
    <units value="lbs"/>
    <system value="http://unitsofmeasure.org"/>
    <code value="[lb_av]"/>
  </valueQuantity>
  <!--   the mandatory quality flags:   -->
  <status value="final"/>
  <reliability value="ok"/>
</Observation>

Simple Weight Example

{
  "resourceType": "Observation",
  "text": {
    "status": "generated",
    "div": "<div>Jan 30 2014: Body Weight = 185 lbs</div>"
  },
  "name": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "3141-9",
        "display": "Weight Measured"
      },
      {
        "system": "http://snomed.info/sct",
        "code": "27113001",
        "display": "Body weight"
      },
      {
        "system": "http://acme.org/devices/clinical-codes",
        "code": "body-weight",
        "display": "Body Weight"
      }
    ]
  },
  "valueQuantity": {
    "value": 185,
    "units": "lbs",
    "system": "http://unitsofmeasure.org",
    "code": "[lb_av]"
  },
  "status": "final",
  "reliability": "ok"
}