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.

Morphine, 30mg, intrav, injection, four times a day, for 1 day

Dose-based instruction using a VTM. Route and method identified and course duration.
<MedicationRequest xmlns="http://hl7.org/fhir">
<id value="1558295a-9213-44cb-81e1-e1ab8fcc3e81" />
<contained>
<Medication>
<id value="med1" />
<code>
<coding>
<system value="http://snomed.info/sct" />
<code value="73572009" />
<display value="Morphine" />
</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>
<timing>
<repeat>
<boundsDuration>
<value value="1" />
<unit value="day" />
<system value="http://unitsofmeasure.org" />
<code value="d" />
</boundsDuration>
<frequency value="4" />
<period value="1" />
<periodUnit value="d" />
</repeat>
</timing>
<route>
<coding>
<system value="http://snomed.info/sct" />
<code value="47625008" />
<display value="intravenous route" />
</coding>
</route>
<method>
<coding>
<system value="http://snomed.info/sct" />
<code value="422145002" />
<display value="inject" />
</coding>
</method>
<doseQuantity>
<value value="30" />
<unit value="milligram" />
<system value="http://unitsofmeasure.org" />
<code value="mg" />
</doseQuantity>
</dosageInstruction>
</MedicationRequest>
{
"resourceType": "MedicationRequest",
"id": "1558295a-9213-44cb-81e1-e1ab8fcc3e81",
"contained": [
{
"resourceType": "Medication",
"id": "med1",
"code": {
"coding": [
{
"system": "http://snomed.info/sct",
"code": "73572009",
"display": "Morphine"
}
]
}
}
],
"status": "active",
"intent": "order",
"medicationReference": {
"reference": "#med1"
},
"subject": {
"identifier": {
"system": "https://fhir.nhs.uk/Id/nhs-number",
"value": "9999999999"
}
},
"dosageInstruction": [
{
"timing": {
"repeat": {
"boundsDuration": {
"value": 1,
"unit": "day",
"system": "http://unitsofmeasure.org",
"code": "d"
},
"frequency": 4,
"period": 1,
"periodUnit": "d"
}
},
"route": {
"coding": [
{
"system": "http://snomed.info/sct",
"code": "47625008",
"display": "intravenous route"
}
]
},
"method": {
"coding": [
{
"system": "http://snomed.info/sct",
"code": "422145002",
"display": "inject"
}
]
},
"doseQuantity": {
"value": 30,
"unit": "milligram",
"system": "http://unitsofmeasure.org",
"code": "mg"
}
}
]
}
MedicationRequest.id[0]1558295a-9213-44cb-81e1-e1ab8fcc3e81
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]73572009
MedicationRequest.contained[0].code[0].coding[0].display[0]Morphine
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].timing[0].repeat[0].bounds[0].value[0]1
MedicationRequest.dosageInstruction[0].timing[0].repeat[0].bounds[0].unit[0]day
MedicationRequest.dosageInstruction[0].timing[0].repeat[0].bounds[0].system[0]http://unitsofmeasure.org
MedicationRequest.dosageInstruction[0].timing[0].repeat[0].bounds[0].code[0]d
MedicationRequest.dosageInstruction[0].timing[0].repeat[0].frequency[0]4
MedicationRequest.dosageInstruction[0].timing[0].repeat[0].period[0]1
MedicationRequest.dosageInstruction[0].timing[0].repeat[0].periodUnit[0]d
MedicationRequest.dosageInstruction[0].route[0].coding[0].system[0]http://snomed.info/sct
MedicationRequest.dosageInstruction[0].route[0].coding[0].code[0]47625008
MedicationRequest.dosageInstruction[0].route[0].coding[0].display[0]intravenous route
MedicationRequest.dosageInstruction[0].method[0].coding[0].system[0]http://snomed.info/sct
MedicationRequest.dosageInstruction[0].method[0].coding[0].code[0]422145002
MedicationRequest.dosageInstruction[0].method[0].coding[0].display[0]inject
MedicationRequest.dosageInstruction[0].dose[0].value[0]30
MedicationRequest.dosageInstruction[0].dose[0].unit[0]milligram
MedicationRequest.dosageInstruction[0].dose[0].system[0]http://unitsofmeasure.org
MedicationRequest.dosageInstruction[0].dose[0].code[0]mg
MedicationRequest
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