PATH-R4-24: Observation Example - MRSA Screening Test

An example of a qualitative test result:

  • MRSA screening test: NOT DETECTED

<Observation xmlns="http://hl7.org/fhir">
    <id value="Pathology-Observation-MRSA-Example" />
    <meta>
        <profile value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-Lab" />
    </meta>
    <identifier>
        <system value="https://tools.ietf.org/html/rfc4122" />
        <value value="2831d45f-8fcb-4f54-9788-b4e7380d9790" />
    </identifier>
    <status value="final" />
    <category>
        <coding>
            <system value="http://terminology.hl7.org/CodeSystem/observation-category" />
            <code value="laboratory" />
            <display value="Laboratory" />
        </coding>
    </category>
    <code>
        <!--  Equivalent codes from the PBCL and PaLM SNOMED CT reference sets are used in this example.  -->
        <!--  In practice, it is likely that only a code from one reference set will be carried.  -->
        <coding>
            <!--  From PBCL observable entity reference set  -->
            <system value="http://snomed.info/sct" />
            <code value="993071000000107" />
            <display value="MRSA (methicillin resistant Staphylococcus aureus) screening test" />
        </coding>
        <coding>
            <!--  From PaLM observable entity reference set  -->
            <system value="http://snomed.info/sct" />
            <code value="51681000237102" />
            <display value="MRSA (methicillin resistant Staphylococcus aureus) DNA nucleic acid amplification qualitative result" />
        </coding>
    </code>
    <subject>
        <reference value="urn:uuid:ab87a3f8-1d37-44a9-804e-5e962598a6e4" />
        <display value="WELSH, Joel" />
    </subject>
    <issued value="2022-05-10T16:07:00+00:00" />
    <performer>
        <reference value="urn:uuid:8a6d85b8-9837-4fed-a257-4cf207988338" />
        <display value="TD008362 PATH LAB 001" />
    </performer>
    <valueCodeableConcept>
        <coding>
            <system value="http://snomed.info/sct" />
            <code value="260415000" />
            <display value="Not detected" />
        </coding>
    </valueCodeableConcept>
    <specimen>
        <reference value="urn:uuid:bab0eaec-1ec5-4598-b660-90bb38a1030d" />
    </specimen>
</Observation>
{
    "resourceType": "Observation",
    "id": "Pathology-Observation-MRSA-Example",
    "meta": {
        "profile":  [
            "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-Lab"
        ]
    },
    "identifier":  [
        {
            "system": "https://tools.ietf.org/html/rfc4122",
            "value": "2831d45f-8fcb-4f54-9788-b4e7380d9790"
        }
    ],
    "status": "final",
    "category":  [
        {
            "coding":  [
                {
                    "system": "http://terminology.hl7.org/CodeSystem/observation-category",
                    "code": "laboratory",
                    "display": "Laboratory"
                }
            ]
        }
    ],
    "code": {
        "coding":  [
            {
                "system": "http://snomed.info/sct",
                "code": "993071000000107",
                "display": "MRSA (methicillin resistant Staphylococcus aureus) screening test"
            },
            {
                "system": "http://snomed.info/sct",
                "code": "51681000237102",
                "display": "MRSA (methicillin resistant Staphylococcus aureus) DNA nucleic acid amplification qualitative result"
            }
        ]
    },
    "subject": {
        "reference": "urn:uuid:ab87a3f8-1d37-44a9-804e-5e962598a6e4",
        "display": "WELSH, Joel"
    },
    "issued": "2022-05-10T16:07:00+00:00",
    "performer":  [
        {
            "reference": "urn:uuid:8a6d85b8-9837-4fed-a257-4cf207988338",
            "display": "TD008362 PATH LAB 001"
        }
    ],
    "valueCodeableConcept": {
        "coding":  [
            {
                "system": "http://snomed.info/sct",
                "code": "260415000",
                "display": "Not detected"
            }
        ]
    },
    "specimen": {
        "reference": "urn:uuid:bab0eaec-1ec5-4598-b660-90bb38a1030d"
    }
}
Observation
Observation.id[0]Pathology-Observation-MRSA-Example
Observation.meta[0].profile[0]https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-Lab
Observation.identifier[0].system[0]https://tools.ietf.org/html/rfc4122
Observation.identifier[0].value[0]2831d45f-8fcb-4f54-9788-b4e7380d9790
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]993071000000107
Observation.code[0].coding[0].display[0]MRSA (methicillin resistant Staphylococcus aureus) screening test
Observation.code[0].coding[1].system[0]http://snomed.info/sct
Observation.code[0].coding[1].code[0]51681000237102
Observation.code[0].coding[1].display[0]MRSA (methicillin resistant Staphylococcus aureus) DNA nucleic acid amplification qualitative result
Observation.subject[0].reference[0]urn:uuid:ab87a3f8-1d37-44a9-804e-5e962598a6e4
Observation.subject[0].display[0]WELSH, Joel
Observation.issued[0]2022-05-10T16:07:00+00:00
Observation.performer[0].reference[0]urn:uuid:8a6d85b8-9837-4fed-a257-4cf207988338
Observation.performer[0].display[0]TD008362 PATH LAB 001
Observation.value[0].coding[0].system[0]http://snomed.info/sct
Observation.value[0].coding[0].code[0]260415000
Observation.value[0].coding[0].display[0]Not detected
Observation.specimen[0].reference[0]urn:uuid:bab0eaec-1ec5-4598-b660-90bb38a1030d