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.

Simvastatin, 40mg, oral, once a day

Dose-based VTM prescription with additional instructions. 
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    <type value="message" />
    <!--    Message Header    -->
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        <resource>
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                <id value="message-header-167434" />
                <text>
                    <status value="generated" />
                    <div xmlns="http://www.w3.org/1999/xhtml"><p>The quick brown fox jumps over the lazy dog</p></div>
                </text>
                <event>
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                    <code value="individual-requirements-1" />
                    <display value="Individual Requirements" />
                </event>
                <timestamp value="2021-05-07T16:15:32Z" />
                <source>
                    <endpoint value="nhs-uk:addressing:ods:T48NT" />
                </source>
                <focus>
                    <reference value="medication-request-129456799" />
                </focus>
            </MessageHeader>
        </resource>
    </entry>
    <!-- Patient associated with the encounter. -->
    <entry>
        <fullUrl value="patient-01020304" />
        <resource>
            <Patient>
                <id value="patient-01020304" />
                <identifier>
                    <extension url="https://fhir.hl7.org.uk/STU3/StructureDefinition/Extension-CareConnect-NHSNumberVerificationStatus-1">
                        <valueCodeableConcept>
                            <coding>
                                <system value="https://fhir.hl7.org.uk/STU3/CodeSystem/CareConnect-NHSNumberVerificationStatus-1" />
                                <code value="01" />
                                <display value="Number present and verified" />
                            </coding>
                        </valueCodeableConcept>
                    </extension>
                    <system value="https://fhir.nhs.uk/Id/nhs-number" />
                    <value value="2377954310" />
                </identifier>
                <name>
                    <use value="official" />
                    <text value="Mrs Anne Teak" />
                    <family value="Teak" />
                    <given value="Anne" />
                    <prefix value="Mrs" />
                </name>
                <gender value="female" />
                <birthDate value="1956-02-04" />
            </Patient>
        </resource>
    </entry>
    <!-- Prescribing clinician associated with the encounter.  -->
    <entry>
        <fullUrl value="staff-0001" />
        <resource>
            <Practitioner>
                <id value="staff-0001" />
                <name>
                    <text value="Dr Maikeu Well" />
                    <family value="Well" />
                    <given value="Maikeu" />
                    <prefix value="Dr" />
                </name>
                <qualification>
                    <code>
                        <coding>
                            <system value="https://fhir.hl7.org.uk/Id/gmc-number" />
                            <code value="2145879" />
                            <display value="General Medical Council" />
                        </coding>
                    </code>
                </qualification>
            </Practitioner>
        </resource>
    </entry>
    <!-- Medication prescribed  -->
    <entry>
        <fullUrl value="medication-27658006" />
        <resource>
            <Medication>
                <id value="medication-27658006" />
                <code>
                    <coding>
                        <system value="http://snomed.info/sct" />
                        <code value="27658006" />
                        <display value="Amoxicillin" />
                    </coding>
                </code>
            </Medication>
        </resource>
    </entry>
    <!--  Medication Request  -->
    <entry>
        <fullUrl value="medication-request-129456799" />
        <resource>
            <MedicationRequest>
                <id value="medication-request-129456799" />
                <status value="active" />
                <intent value="order" />
                <category>
                    <coding>
                        <system value="http://hl7.org/fhir/medication-request-category" />
                        <code value="inpatient" />
                        <display value="inpatient" />
                    </coding>
                </category>
                <medicationReference>
                    <reference value="medication-27658006" />
                    <display value="Amoxicillin" />
                </medicationReference>
                <subject>
                    <reference value="patient-01020304" />
                    <display value="Mrs Anne Teak" />
                </subject>
                <authoredOn value="2020-05-15T15:00:00+01:00" />
                <requester>
                    <agent>
                        <reference value="staff-0001" />
                        <display value="Dr Maikeu Well" />
                    </agent>
                </requester>
                <recorder>
                    <reference value="staff-0001" />
                    <display value="Dr Maikeu Well" />
                </recorder>
                <dosageInstruction>
                    <timing>
                        <repeat>
                            <frequency value="3" />
                            <period value="1" />
                            <periodUnit value="d" />
                        </repeat>
                    </timing>
                    <route>
                        <coding>
                            <system value="http://snomed.info/sct" />
                            <code value="26643006" />
                            <display value="oral" />
                        </coding>
                    </route>
                    <doseQuantity>
                        <value value="500" />
                        <unit value="milligram" />
                        <system value="http://unitsofmeasure.org" />
                        <code value="mg" />
                    </doseQuantity>
                </dosageInstruction>
                <substitution>
                    <allowed value="false" />
                </substitution>
                <priorPrescription>
                    <reference value="47fcb89e-46bc-4c64-bfa6-84b0098a2296" />
                </priorPrescription>
            </MedicationRequest>
        </resource>
    </entry>
</Bundle>

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                                            "display": "Number present and verified"
                                        }
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                ],
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            }
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        {
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                "resourceType": "Practitioner",
                "id": "staff-0001",
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                            "display": "Amoxicillin"
                        }
                    ]
                }
            }
        },
        {
            "fullUrl": "medication-request-129456799",
            "resource": {
                "resourceType": "MedicationRequest",
                "id": "medication-request-129456799",
                "status": "active",
                "intent": "order",
                "category": {
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                            "code": "inpatient",
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                "recorder": {
                    "reference": "staff-0001",
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                },
                "dosageInstruction":  [
                    {
                        "timing": {
                            "repeat": {
                                "frequency": 3,
                                "period": 1,
                                "periodUnit": "d"
                            }
                        },
                        "route": {
                            "coding":  [
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                                    "system": "http://snomed.info/sct",
                                    "code": "26643006",
                                    "display": "oral"
                                }
                            ]
                        },
                        "doseQuantity": {
                            "value": 500,
                            "unit": "milligram",
                            "system": "http://unitsofmeasure.org",
                            "code": "mg"
                        }
                    }
                ],
                "substitution": {
                    "allowed": false
                },
                "priorPrescription": {
                    "reference": "47fcb89e-46bc-4c64-bfa6-84b0098a2296"
                }
            }
        }
    ]
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Bundle.entry[1].resource[0].identifier[0].extension[0].value[0].coding[0].code[0]01
Bundle.entry[1].resource[0].identifier[0].extension[0].value[0].coding[0].display[0]Number present and verified
Bundle.entry[1].resource[0].identifier[0].system[0]https://fhir.nhs.uk/Id/nhs-number
Bundle.entry[1].resource[0].identifier[0].value[0]2377954310
Bundle.entry[1].resource[0].name[0].use[0]official
Bundle.entry[1].resource[0].name[0].text[0]Mrs Anne Teak
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Bundle.entry[1].resource[0].name[0].prefix[0]Mrs
Bundle.entry[1].resource[0].gender[0]female
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Bundle.entry[2].fullUrl[0]staff-0001
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Bundle.entry[2].resource[0].name[0].family[0]Well
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Bundle.entry[2].resource[0].name[0].prefix[0]Dr
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Bundle.entry[4].resource[0].recorder[0].display[0]Dr Maikeu Well
Bundle.entry[4].resource[0].dosageInstruction[0].timing[0].repeat[0].frequency[0]3
Bundle.entry[4].resource[0].dosageInstruction[0].timing[0].repeat[0].period[0]1
Bundle.entry[4].resource[0].dosageInstruction[0].timing[0].repeat[0].periodUnit[0]d
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Bundle.entry[4].resource[0].dosageInstruction[0].dose[0].value[0]500
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Bundle.entry[4].resource[0].dosageInstruction[0].dose[0].code[0]mg
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Bundle.entry[4].resource[0].priorPrescription[0].reference[0]47fcb89e-46bc-4c64-bfa6-84b0098a2296
Bundle
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