An example to illustrate the observation of a white cell count for a blood specimen

Table View

Observation.id[0]UKCore-Observation-Lab-WhiteCellCount-Example
Observation.identifier[0].system[0]https://tools.ietf.org/html/rfc4122
Observation.identifier[0].value[0]3b809516-a294-4de9-a4ce-0c24c7b5f796
Observation.status[0]final
Observation.category[0].coding[0].system[0]http://terminology.hl7.org/CodeSystem/observation-category
Observation.category[0].coding[0].code[0]laboratory
Observation.category[0].coding[0].display[0]Laboratory
Observation.code[0].coding[0].system[0]http://snomed.info/sct
Observation.code[0].coding[0].code[0]16181000237107
Observation.code[0].coding[0].display[0]White blood cell count in fluid
Observation.subject[0].reference[0]Patient/UKCore-Patient-RichardSmith-Example
Observation.performer[0].reference[0]Organization/UKCore-Organization-LeedsTeachingHospital-Example
Observation.value[0].value[0]11.2
Observation.value[0].unit[0]10*9/L
Observation.value[0].system[0]http://unitsofmeasure.org
Observation.specimen[0].reference[0]Specimen/UKCore-Specimen-BloodSpecimen-Example
Observation.referenceRange[0].low[0].value[0]4.0
Observation.referenceRange[0].high[0].value[0]17.0

XML View

<Observation xmlns="http://hl7.org/fhir">
    <id value="UKCore-Observation-Lab-WhiteCellCount-Example" />
    <identifier>
        <system value="https://tools.ietf.org/html/rfc4122" />
        <value value="3b809516-a294-4de9-a4ce-0c24c7b5f796" />
    </identifier>
    <status value="final" />
    <category>
        <coding>
            <system value="http://terminology.hl7.org/CodeSystem/observation-category" />
            <code value="laboratory" />
            <display value="Laboratory" />
        </coding>
    </category>
    <code>
        <coding>
            <system value="http://snomed.info/sct" />
            <code value="16181000237107" />
            <display value="White blood cell count in fluid" />
        </coding>
    </code>
    <subject>
        <reference value="Patient/UKCore-Patient-RichardSmith-Example" />
    </subject>
    <performer>
        <reference value="Organization/UKCore-Organization-LeedsTeachingHospital-Example" />
    </performer>
    <valueQuantity>
        <value value="11.2" />
        <unit value="10*9/L" />
        <system value="http://unitsofmeasure.org" />
    </valueQuantity>
    <specimen>
        <reference value="Specimen/UKCore-Specimen-BloodSpecimen-Example" />
    </specimen>
    <referenceRange>
        <low>
            <value value="4.0" />
        </low>
        <high>
            <value value="17.0" />
        </high>
    </referenceRange>
</Observation>

JSON View

{
    "resourceType": "Observation",
    "id": "UKCore-Observation-Lab-WhiteCellCount-Example",
    "identifier":  [
        {
            "system": "https://tools.ietf.org/html/rfc4122",
            "value": "3b809516-a294-4de9-a4ce-0c24c7b5f796"
        }
    ],
    "status": "final",
    "category":  [
        {
            "coding":  [
                {
                    "system": "http://terminology.hl7.org/CodeSystem/observation-category",
                    "code": "laboratory",
                    "display": "Laboratory"
                }
            ]
        }
    ],
    "code": {
        "coding":  [
            {
                "system": "http://snomed.info/sct",
                "code": "16181000237107",
                "display": "White blood cell count in fluid"
            }
        ]
    },
    "subject": {
        "reference": "Patient/UKCore-Patient-RichardSmith-Example"
    },
    "performer":  [
        {
            "reference": "Organization/UKCore-Organization-LeedsTeachingHospital-Example"
        }
    ],
    "valueQuantity": {
        "value": 11.2,
        "unit": "10*9/L",
        "system": "http://unitsofmeasure.org"
    },
    "specimen": {
        "reference": "Specimen/UKCore-Specimen-BloodSpecimen-Example"
    },
    "referenceRange":  [
        {
            "low": {
                "value": 4
            },
            "high": {
                "value": 17
            }
        }
    ]
}

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