Dose syntax implementation guidance for FHIR STU3

This guidance is under active development by NHS Digital and content may be added or updated on a regular basis.

Permitabs 400mg tablets. Add 500ml of warm water to one tablet and dissolve. Make the resulting solution up to 8 litres and use to soak feet.

Product-based prescription with patient instruction for preparation.

Complex because contains a detailed preparation instruction which has to be conveyed as free-text within patientInstruction.

<MedicationRequest xmlns="http://hl7.org/fhir">
    <id value="1f4959a1-4a33-4b0e-bfad-f2ea1fccb2fa" />
    <contained>
        <Medication>
            <id value="med1" />
            <code>
                <coding>
                    <system value="http://snomed.info/sct" />
                    <code value="4256811000001101" />
                    <display value="Permitabs 400mg tablets for cutaneous solution (Alliance Pharmaceuticals Ltd)" />
                </coding>
            </code>
        </Medication>
    </contained>
    <status value="active" />
    <intent value="order" />
    <medicationReference>
        <reference value="#med1" />
    </medicationReference>
    <subject>
        <identifier>
            <system value="https://fhir.nhs.uk/Id/nhs-number" />
            <value value="9999999999" />
        </identifier>
    </subject>
    <dosageInstruction>
        <patientInstruction value="Add 500ml of warm water to one tablet and dissolve. Make the resulting solution up to 8 litres and use to soak feet." />
    </dosageInstruction>
</MedicationRequest>
{
    "resourceType": "MedicationRequest",
    "id": "1f4959a1-4a33-4b0e-bfad-f2ea1fccb2fa",
    "contained":  [
        {
            "resourceType": "Medication",
            "id": "med1",
            "code": {
                "coding":  [
                    {
                        "system": "http://snomed.info/sct",
                        "code": "4256811000001101",
                        "display": "Permitabs 400mg tablets for cutaneous solution (Alliance Pharmaceuticals Ltd)"
                    }
                ]
            }
        }
    ],
    "status": "active",
    "intent": "order",
    "medicationReference": {
        "reference": "#med1"
    },
    "subject": {
        "identifier": {
            "system": "https://fhir.nhs.uk/Id/nhs-number",
            "value": "9999999999"
        }
    },
    "dosageInstruction":  [
        {
            "patientInstruction": "Add 500ml of warm water to one tablet and dissolve. Make the resulting solution up to 8 litres and use to soak feet."
        }
    ]
}
MedicationRequest.id[0]1f4959a1-4a33-4b0e-bfad-f2ea1fccb2fa
MedicationRequest.contained[0].id[0]med1
MedicationRequest.contained[0].code[0].coding[0].system[0]http://snomed.info/sct
MedicationRequest.contained[0].code[0].coding[0].code[0]4256811000001101
MedicationRequest.contained[0].code[0].coding[0].display[0]Permitabs 400mg tablets for cutaneous solution (Alliance Pharmaceuticals Ltd)
MedicationRequest.status[0]active
MedicationRequest.intent[0]order
MedicationRequest.medication[0].reference[0]#med1
MedicationRequest.subject[0].identifier[0].system[0]https://fhir.nhs.uk/Id/nhs-number
MedicationRequest.subject[0].identifier[0].value[0]9999999999
MedicationRequest.dosageInstruction[0].patientInstruction[0]Add 500ml of warm water to one tablet and dissolve. Make the resulting solution up to 8 litres and use to soak feet.
MedicationRequest
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