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.

Oxygen by inhalation 1 to 2 litres per minute via nasal cannula

Dose-based (VMP) dose expressed as a rate. Device expressed as additional instruction.
<MedicationRequest xmlns="http://hl7.org/fhir">
<id value="a8ca980c-72aa-11e7-8cf7-a6006ad3dba0" />
<contained>
<Medication>
<id value="med1" />
<code>
<coding>
<system value="http://snomed.info/sct" />
<code value="375287000" />
<display value="Oxygen" />
</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>
<additionalInstruction>
<text value="to be given via nasal cannula" />
</additionalInstruction>
<route>
<coding>
<system value="http://snomed.info/sct" />
<code value="18679011000001101" />
<display value="Inhalation" />
</coding>
</route>
<doseRange>
<low>
<value value="1" />
<unit value="liter per minute" />
<system value="http://unitsofmeasure.org" />
<code value="L/min" />
</low>
<high>
<value value="2" />
<unit value="liter per minute" />
<system value="http://unitsofmeasure.org" />
<code value="L/min" />
</high>
</doseRange>
</dosageInstruction>
</MedicationRequest>
{
"resourceType": "MedicationRequest",
"id": "a8ca980c-72aa-11e7-8cf7-a6006ad3dba0",
"contained": [
{
"resourceType": "Medication",
"id": "med1",
"code": {
"coding": [
{
"system": "http://snomed.info/sct",
"code": "375287000",
"display": "Oxygen"
}
]
}
}
],
"status": "active",
"intent": "order",
"medicationReference": {
"reference": "#med1"
},
"subject": {
"identifier": {
"system": "https://fhir.nhs.uk/Id/nhs-number",
"value": "9999999999"
}
},
"dosageInstruction": [
{
"additionalInstruction": [
{
"text": "to be given via nasal cannula"
}
],
"route": {
"coding": [
{
"system": "http://snomed.info/sct",
"code": "18679011000001101",
"display": "Inhalation"
}
]
},
"doseRange": {
"low": {
"value": 1,
"unit": "liter per minute",
"system": "http://unitsofmeasure.org",
"code": "L/min"
},
"high": {
"value": 2,
"unit": "liter per minute",
"system": "http://unitsofmeasure.org",
"code": "L/min"
}
}
}
]
}
MedicationRequest.id[0]a8ca980c-72aa-11e7-8cf7-a6006ad3dba0
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]375287000
MedicationRequest.contained[0].code[0].coding[0].display[0]Oxygen
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].additionalInstruction[0].text[0]to be given via nasal cannula
MedicationRequest.dosageInstruction[0].route[0].coding[0].system[0]http://snomed.info/sct
MedicationRequest.dosageInstruction[0].route[0].coding[0].code[0]18679011000001101
MedicationRequest.dosageInstruction[0].route[0].coding[0].display[0]Inhalation
MedicationRequest.dosageInstruction[0].dose[0].low[0].value[0]1
MedicationRequest.dosageInstruction[0].dose[0].low[0].unit[0]liter per minute
MedicationRequest.dosageInstruction[0].dose[0].low[0].system[0]http://unitsofmeasure.org
MedicationRequest.dosageInstruction[0].dose[0].low[0].code[0]L/min
MedicationRequest.dosageInstruction[0].dose[0].high[0].value[0]2
MedicationRequest.dosageInstruction[0].dose[0].high[0].unit[0]liter per minute
MedicationRequest.dosageInstruction[0].dose[0].high[0].system[0]http://unitsofmeasure.org
MedicationRequest.dosageInstruction[0].dose[0].high[0].code[0]L/min
MedicationRequest
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