Australian Digital Health Agency FHIR Implementation Guide, published by Australian Digital Health Agency. This guide is not an authorized publication; it is the continuous build for version 1.2.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/AuDigitalHealth/ci-fhir-r4/ and changes regularly. See the Directory of published versions

Resource Profile: ADHAMedicationRequestPrescription - Detailed Descriptions

Draft as of 2024-12-19

Definitions for the dh-medicationrequest-pres-1 resource profile.

Guidance on how to interpret the contents of this table can be found here

0. MedicationRequest
Definition

Record of a prescription in an Australian healthcare context.

ShortPrescription Record
Invariantsinv-dh-pres-01: If present, the prescription this is based on shall at least have a reference or a valid identifier (basedOn.exists() implies basedOn.all($this.reference.exists() or $this.display.exists() or $this.identifier.where(system.count() + value.count() >1).exists()))
2. MedicationRequest.extension:subsidisedConcurrentSupply
Slice NamesubsidisedConcurrentSupply
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Subsidised Concurrent Supply) (Extension Type: Coding)
Must Supporttrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
4. MedicationRequest.identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Control1..?
6. MedicationRequest.category
Control1..?
8. MedicationRequest.medication[x]
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Must Supporttrue
SlicingThis element introduces a set of slices on MedicationRequest.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
  • 10. MedicationRequest.medication[x]:medicationReference
    Slice NamemedicationReference
    Control1..?
    This element is affected by the following invariants: inv-dh-pres-02
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Must Supporttrue
    Invariantsinv-dh-pres-02: At least reference shall be present (reference.exists())
    12. MedicationRequest.supportingInformation:bodyHeight
    Slice NamebodyHeight
    TypeReference(http://hl7.org.au/fhir/StructureDefinition/au-bodyheight)
    14. MedicationRequest.supportingInformation:bodyWeight
    Slice NamebodyWeight
    TypeReference(http://hl7.org.au/fhir/StructureDefinition/au-bodyweight)
    16. MedicationRequest.requester
    TypeReference(ADHA Authoring PractitionerRole)
    18. MedicationRequest.basedOn
    TypeReference(ADHA Core MedicationRequest)
    Must Supporttrue
    20. MedicationRequest.dispenseRequest
    Control1..?
    22. MedicationRequest.dispenseRequest.dispenseInterval
    Must Supporttrue
    24. MedicationRequest.dispenseRequest.validityPeriod
    Control1..?
    26. MedicationRequest.dispenseRequest.expectedSupplyDuration
    Must Supporttrue
    28. MedicationRequest.priorPrescription
    TypeReference(ADHA Core MedicationRequest)
    Must Supporttrue

    Guidance on how to interpret the contents of this table can be found here

    0. MedicationRequest
    Definition

    Record of a prescription in an Australian healthcare context.


    An order or request for both supply of the medication and the instructions for administration of the medication to a patient. The resource is called "MedicationRequest" rather than "MedicationPrescription" or "MedicationOrder" to generalize the use across inpatient and outpatient settings, including care plans, etc., and to harmonize with workflow patterns.

    ShortPrescription RecordOrdering of medication for patient or group
    Control0..*
    Is Modifierfalse
    Summaryfalse
    Alternate NamesPrescription, Order
    Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
    dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
    dom-6: A resource should have narrative for robust management (text.`div`.exists())
    inv-dh-pres-01: If present, the prescription this is based on shall at least have a reference or a valid identifier (basedOn.exists() implies basedOn.all($this.reference.exists() or $this.display.exists() or $this.identifier.where(system.count() + value.count() >1).exists()))
    2. MedicationRequest.implicitRules
    Definition

    A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

    ShortA set of rules under which this content was created
    Comments

    Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

    Control0..1
    Typeuri
    Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    4. MedicationRequest.extension:subsidisedConcurrentSupply
    Slice NamesubsidisedConcurrentSupply
    Definition

    The grounds which authorise a PBS or RPBS subsidy for the concurrent supply of a medication item specified in a prescription and all of its repeats.

    ShortGrounds for concurrent supply of medication
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Subsidised Concurrent Supply) (Extension Type: Coding)
    Is Modifierfalse
    Must Supporttrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    6. MedicationRequest.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
    Summaryfalse
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    8. MedicationRequest.identifier
    Definition

    Identifiers associated with this medication request that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. They are business identifiers assigned to this resource by the performer or other systems and remain constant as the resource is updated and propagates from server to server.

    ShortExternal ids for this request
    Comments

    This is a business identifier, not a resource identifier.

    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control10..*
    This element is affected by the following invariants: ele-1
    TypeIdentifier(Identifier, AU ETP Prescription Identifier, AU Local Prescription Identifier)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. MedicationRequest.status
    Definition

    A code specifying the current state of the order. Generally, this will be active or completed state.

    Shortactive | on-hold | cancelled | completed | entered-in-error | stopped | draft | unknown
    Comments

    This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

    Control1..1
    BindingThe codes SHALL be taken from medicationrequest Statushttp://hl7.org/fhir/ValueSet/medicationrequest-status|4.0.1
    (required to http://hl7.org/fhir/ValueSet/medicationrequest-status|4.0.1)

    A coded concept specifying the state of the prescribing event. Describes the lifecycle of the prescription.

    Typecode
    Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supporttrue
    Obligations
      ObligationsActor
      SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
      SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      12. MedicationRequest.intent
      Definition

      Whether the request is a proposal, plan, or an original order.

      Shortproposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
      Comments

      It is expected that the type of requester will be restricted for different stages of a MedicationRequest. For example, Proposals can be created by a patient, relatedPerson, Practitioner or Device. Plans can be created by Practitioners, Patients, RelatedPersons and Devices. Original orders can be created by a Practitioner only.

      An instance-order is an instantiation of a request or order and may be used to populate Medication Administration Record.

      This element is labeled as a modifier because the intent alters when and how the resource is actually applicable.

      Control1..1
      BindingThe codes SHALL be taken from medicationRequest Intenthttp://hl7.org/fhir/ValueSet/medicationrequest-intent|4.0.1
      (required to http://hl7.org/fhir/ValueSet/medicationrequest-intent|4.0.1)

      The kind of medication order.

      Typecode
      Is Modifiertrue because This element changes the interpretation of all descriptive attributes. For example "the time the request is recommended to occur" vs. "the time the request is authorized to occur" or "who is recommended to perform the request" vs. "who is authorized to perform the request
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Obligations
        ObligationsActor
        SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
        SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        14. MedicationRequest.category
        Definition

        Indicates the type of medication request (for example, where the medication is expected to be consumed or administered (i.e. inpatient or outpatient)).

        ShortType of medication usage
        Comments

        The category can be used to include where the medication is expected to be consumed or other types of requests.

        Control10..*
        BindingFor example codes, see medicationRequest Category Codeshttp://hl7.org/fhir/ValueSet/medicationrequest-category
        (example to http://hl7.org/fhir/ValueSet/medicationrequest-category)

        A coded concept identifying the category of medication request. For example, where the medication is to be consumed or administered, or the type of medication treatment.

        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        16. MedicationRequest.doNotPerform
        Definition

        If true indicates that the provider is asking for the medication request not to occur.

        ShortTrue if request is prohibiting action
        Comments

        If do not perform is not specified, the request is a positive request e.g. "do perform".

        Control0..1
        Typeboolean
        Is Modifiertrue because This element is labeled as a modifier because this element negates the request to occur (ie, this is a request for the medication not to be ordered or prescribed, etc)
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        18. MedicationRequest.medication[x]
        Definition

        Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

        ShortMedication to be taken
        Comments

        If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

        Control1..1
        BindingFor example codes, see SNOMEDCTMedicationCodeshttp://hl7.org/fhir/ValueSet/medication-codes
        (example to http://hl7.org/fhir/ValueSet/medication-codes)

        A coded concept identifying substance or product that can be ordered.

        TypeReference(Medication), CodeableConcept
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Must Supporttrue
        Obligations
          ObligationsActor
          SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
          SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          SlicingThis element introduces a set of slices on MedicationRequest.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
          • type @ $this
          • 20. MedicationRequest.medication[x]:medicationReference
            Slice NamemedicationReference
            Definition

            Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

            ShortPrescribed MedicationMedication to be taken
            Comments

            If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

            Control1..1
            This element is affected by the following invariants: inv-dh-pres-02
            TypeReference(AU Core Medication, Medication), CodeableConcept
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Must Supporttrue
            Obligations
              ObligationsActor
              SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
              SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              inv-dh-pres-02: At least reference shall be present (reference.exists())
              22. MedicationRequest.medication[x]:medicationCodeableConcept
              Slice NamemedicationCodeableConcept
              Definition

              Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

              ShortCoded Prescribed MedicationMedication to be taken
              Comments

              If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

              Control01..1
              BindingFor example codes, see SNOMEDCTMedicationCodeshttp://hl7.org/fhir/ValueSet/medication-codes
              (example to http://hl7.org/fhir/ValueSet/medication-codes)
              TypeCodeableConcept, Reference(Medication)
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Is Modifierfalse
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              24. MedicationRequest.medication[x]:medicationCodeableConcept.coding
              Definition

              A reference to a code defined by a terminology system.

              ShortCode defined by a terminology system
              Comments

              Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

              Control0..*
              TypeCoding
              Is Modifierfalse
              Summarytrue
              Requirements

              Allows for alternative encodings within a code system, and translations to other code systems.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • pattern @ $this
              • 26. MedicationRequest.medication[x]:medicationCodeableConcept.coding.extension:medicationClass
                Slice NamemedicationClass
                Definition

                The type of information covered by the medication coding, e.g. branded product with no strength or form.

                ShortMedication type
                Control0..1
                TypeExtension(Medication Type) (Extension Type: Coding)
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                28. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs
                Slice Namepbs
                Definition

                A reference to a code defined by a terminology system.

                ShortCode defined by a terminology system
                Comments

                Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                Control0..*
                BindingThe codes SHALL be taken from For codes, see PBS Item Codes
                (required to http://terminology.hl7.org.au/ValueSet/pbs-item)
                TypeCoding
                Is Modifierfalse
                Must Supporttrue
                Obligations
                  ObligationsActor
                  SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                  SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                  Summarytrue
                  Requirements

                  Allows for alternative encodings within a code system, and translations to other code systems.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  30. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.extension:medicationClass
                  Slice NamemedicationClass
                  Definition

                  The type of information covered by the medication coding, e.g. branded product with no strength or form.

                  ShortMedication type
                  Control0..1
                  TypeExtension(Medication Type) (Extension Type: Coding)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  32. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt
                  Slice Nameamt
                  Definition

                  A reference to a code defined by a terminology system.

                  ShortCode defined by a terminology system
                  Comments

                  Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                  Control0..*
                  BindingThe codes SHALL be taken from For codes, see Australian Medication .
                  (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-medication-1)
                  TypeCoding
                  Is Modifierfalse
                  Must Supporttrue
                  Obligations
                    ObligationsActor
                    SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                    SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                    Summarytrue
                    Requirements

                    Allows for alternative encodings within a code system, and translations to other code systems.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    34. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.extension:medicationClass
                    Slice NamemedicationClass
                    Definition

                    The type of information covered by the medication coding, e.g. branded product with no strength or form.

                    ShortMedication type
                    Control0..1
                    TypeExtension(Medication Type) (Extension Type: Coding)
                    Is Modifierfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    36. MedicationRequest.subject
                    Definition

                    A link to a resource representing the person or set of individuals to whom the medication will be given.

                    ShortWho or group medication request is for
                    Comments

                    The subject on a medication request is mandatory. For the secondary use case where the actual subject is not provided, there still must be an anonymized subject specified.

                    Control1..1
                    This element is affected by the following invariants: inv-dh-medreq-01
                    TypeReference(AU Core Patient, Patient, Group)
                    Is Modifierfalse
                    Must Supporttrue
                    Obligations
                      ObligationsActor
                      SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                      SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      inv-dh-medreq-01: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
                      38. MedicationRequest.encounter
                      Definition

                      The Encounter during which this [x] was created or to which the creation of this record is tightly associated.

                      ShortEncounter created as part of encounter/admission/stay
                      Comments

                      This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter." If there is a need to link to episodes of care they will be handled with an extension.

                      Control0..1
                      TypeReference(AU Core Encounter, Encounter)
                      Is Modifierfalse
                      Must Supporttrue
                      Obligations
                        ObligationsActor
                        SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                        SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        40. MedicationRequest.supportingInformation
                        Definition

                        Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                        ShortInformation to support ordering of the medication
                        Control0..*
                        TypeReference(Resource)
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        SlicingThis element introduces a set of slices on MedicationRequest.supportingInformation. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • profile @ resolve()
                        • 42. MedicationRequest.supportingInformation:bodyHeight
                          Slice NamebodyHeight
                          Definition

                          Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                          ShortObservation of Body HeightInformation to support ordering of the medication
                          Control0..1*
                          TypeReference(http://hl7.org.au/fhir/StructureDefinition/au-bodyheight, Resource)
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          44. MedicationRequest.supportingInformation:bodyWeight
                          Slice NamebodyWeight
                          Definition

                          Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                          ShortObservation of Body WeightInformation to support ordering of the medication
                          Control0..1*
                          TypeReference(http://hl7.org.au/fhir/StructureDefinition/au-bodyweight, Resource)
                          Is Modifierfalse
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          46. MedicationRequest.authoredOn
                          Definition

                          The date (and perhaps time) when the prescription was initially written or authored on.

                          ShortCreated dateWhen request was initially authored
                          Control10..1
                          This element is affected by the following invariants: au-core-medreq-01
                          TypedateTime
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supporttrue
                          Obligations
                            ObligationsActor
                            SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                            SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                            Summarytrue
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            au-core-medreq-01: Date shall be precise to the day or, if not available, the Data Absent Reason extension shall be present ($this.hasValue() implies (extension('http://hl7.org/fhir/StructureDefinition/data-absent-reason').value.exists().not() and $this.toString().length() >= 10))
                            48. MedicationRequest.requester
                            Definition

                            The individual, organization, or device that initiated the request and has responsibility for its activation.

                            ShortWho/What requested the Request
                            Control10..1
                            This element is affected by the following invariants: inv-dh-medreq-02
                            TypeReference(ADHA Authoring PractitionerRole, Practitioner, PractitionerRole, Organization, Patient, RelatedPerson, Device)
                            Is Modifierfalse
                            Must Supporttrue
                            Obligations
                              ObligationsActor
                              SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                              SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                              Summarytrue
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              inv-dh-medreq-02: At least reference or display or a valid identifier shall be present (reference.exists() or display.exists() or identifier.where(system.count() + value.count() >1).exists())
                              50. MedicationRequest.reasonCode
                              Definition

                              The reason or the indication for ordering or not ordering the medication.

                              ShortReason or indication for ordering or not ordering the medication
                              Comments

                              This could be a diagnosis code. If a full condition record exists or additional detail is needed, use reasonReference.

                              Control0..*
                              BindingThe codes SHOULD be taken from For example codes, see Reason for Request .http://hl7.org/fhir/ValueSet/condition-code
                              (preferred to https://healthterminologies.gov.au/fhir/ValueSet/reason-for-request-1)
                              TypeCodeableConcept
                              Is Modifierfalse
                              Must Supporttrue
                              Obligations
                                ObligationsActor
                                SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                Summaryfalse
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                52. MedicationRequest.reasonReference
                                Definition

                                Condition or observation that supports why the medication was ordered.

                                ShortCondition or observation that supports why the prescription is being written
                                Comments

                                This is a reference to a condition or observation that is the reason for the medication order. If only a code exists, use reasonCode.

                                Control0..*
                                TypeReference(AU Core Condition, Observation, Condition)
                                Is Modifierfalse
                                Must Supporttrue
                                Must Support TypesNo must-support rules about the choice of types/profiles
                                Obligations
                                  ObligationsActor
                                  SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                  SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                  Summaryfalse
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  54. MedicationRequest.basedOn
                                  Definition

                                  A plan or request that is fulfilled in whole or in part by this medication request.

                                  ShortWhat request fulfills
                                  Control0..*
                                  This element is affected by the following invariants: inv-dh-pres-01
                                  TypeReference(ADHA Core MedicationRequest, CarePlan, MedicationRequest, ServiceRequest, ImmunizationRecommendation)
                                  Is Modifierfalse
                                  Must Supporttrue
                                  Summarytrue
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                  56. MedicationRequest.dosageInstruction
                                  Definition

                                  Indicates how the medication is/was taken or should be taken by the patient.


                                  Indicates how the medication is to be used by the patient.

                                  ShortDosage information in an Australian healthcare contextHow the medication should be taken
                                  Comments

                                  There are examples where a medication request may include the option of an oral dose or an Intravenous or Intramuscular dose. For example, "Ondansetron 8mg orally or IV twice a day as needed for nausea" or "Compazine® (prochlorperazine) 5-10mg PO or 25mg PR bid prn nausea or vomiting". In these cases, two medication requests would be created that could be grouped together. The decision on which dose and route of administration to use is based on the patient's condition at the time the dose is needed.

                                  Control0..*
                                  TypeDosage(AU Base Dosage)
                                  Is Modifierfalse
                                  Must Supporttrue
                                  Obligations
                                    ObligationsActor
                                    SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                    SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    58. MedicationRequest.dispenseRequest
                                    Definition

                                    Indicates the specific details for the dispense or medication supply part of a medication request (also known as a Medication Prescription or Medication Order). Note that this information is not always sent with the order. There may be in some settings (e.g. hospitals) institutional or system support for completing the dispense details in the pharmacy department.

                                    ShortRequested dispensingMedication supply authorization
                                    Control10..1
                                    TypeBackboneElement
                                    Is Modifierfalse
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    60. MedicationRequest.dispenseRequest.modifierExtension
                                    Definition

                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                    ShortExtensions that cannot be ignored even if unrecognized
                                    Comments

                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                    Control0..*
                                    TypeExtension
                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                    Summarytrue
                                    Requirements

                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                    Alternate Namesextensions, user content, modifiers
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    62. MedicationRequest.dispenseRequest.dispenseInterval
                                    Definition

                                    The minimum period of time that must occur between dispenses of the medication.

                                    ShortMinimum period of time between dispenses
                                    Control0..1
                                    TypeDuration
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    64. MedicationRequest.dispenseRequest.validityPeriod
                                    Definition

                                    This indicates the validity period of a prescription (stale dating the Prescription).

                                    ShortTime period supply is authorized for
                                    Comments

                                    It reflects the prescribers' perspective for the validity of the prescription. Dispenses must not be made against the prescription outside of this period. The lower-bound of the Dispensing Window signifies the earliest date that the prescription can be filled for the first time. If an upper-bound is not specified then the Prescription is open-ended or will default to a stale-date based on regulations.

                                    Control10..1
                                    TypePeriod
                                    Is Modifierfalse
                                    Summaryfalse
                                    Requirements

                                    Indicates when the Prescription becomes valid, and when it ceases to be a dispensable Prescription.

                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    66. MedicationRequest.dispenseRequest.expectedSupplyDuration
                                    Definition

                                    Identifies the period time over which the supplied product is expected to be used, or the length of time the dispense is expected to last.

                                    ShortNumber of days supply per dispense
                                    Comments

                                    In some situations, this attribute may be used instead of quantity to identify the amount supplied by how long it is expected to last, rather than the physical quantity issued, e.g. 90 days supply of medication (based on an ordered dosage). When possible, it is always better to specify quantity, as this tends to be more precise. expectedSupplyDuration will always be an estimate that can be influenced by external factors.

                                    Control0..1
                                    TypeDuration
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    68. MedicationRequest.priorPrescription
                                    Definition

                                    A link to a resource representing an earlier order related order or prescription.

                                    ShortAn order/prescription that is being replaced
                                    Control0..1
                                    TypeReference(ADHA Core MedicationRequest, MedicationRequest)
                                    Is Modifierfalse
                                    Must Supporttrue
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

                                    Guidance on how to interpret the contents of this table can be found here

                                    0. MedicationRequest
                                    Definition

                                    Record of a prescription in an Australian healthcare context.

                                    ShortPrescription Record
                                    Control0..*
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate NamesPrescription, Order
                                    Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
                                    dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
                                    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
                                    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
                                    dom-6: A resource should have narrative for robust management (text.`div`.exists())
                                    inv-dh-pres-01: If present, the prescription this is based on shall at least have a reference or a valid identifier (basedOn.exists() implies basedOn.all($this.reference.exists() or $this.display.exists() or $this.identifier.where(system.count() + value.count() >1).exists()))
                                    2. MedicationRequest.id
                                    Definition

                                    The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

                                    ShortLogical id of this artifact
                                    Comments

                                    The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

                                    Control0..1
                                    Typeid
                                    Is Modifierfalse
                                    Summarytrue
                                    4. MedicationRequest.meta
                                    Definition

                                    The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

                                    ShortMetadata about the resource
                                    Control0..1
                                    TypeMeta
                                    Is Modifierfalse
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    6. MedicationRequest.implicitRules
                                    Definition

                                    A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

                                    ShortA set of rules under which this content was created
                                    Comments

                                    Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

                                    Control0..1
                                    Typeuri
                                    Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summarytrue
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    8. MedicationRequest.language
                                    Definition

                                    The base language in which the resource is written.

                                    ShortLanguage of the resource content
                                    Comments

                                    Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

                                    Control0..1
                                    BindingThe codes SHOULD be taken from CommonLanguages
                                    (preferred to http://hl7.org/fhir/ValueSet/languages)

                                    A human language.

                                    Additional BindingsPurpose
                                    AllLanguagesMax Binding
                                    Typecode
                                    Is Modifierfalse
                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    10. MedicationRequest.text
                                    Definition

                                    A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

                                    ShortText summary of the resource, for human interpretation
                                    Comments

                                    Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

                                    Control0..1
                                    TypeNarrative
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesnarrative, html, xhtml, display
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    12. MedicationRequest.contained
                                    Definition

                                    These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

                                    ShortContained, inline Resources
                                    Comments

                                    This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

                                    Control0..*
                                    TypeResource
                                    Is Modifierfalse
                                    Summaryfalse
                                    Alternate Namesinline resources, anonymous resources, contained resources
                                    14. MedicationRequest.extension
                                    Definition

                                    An Extension

                                    ShortExtension
                                    Control0..*
                                    TypeExtension
                                    Is Modifierfalse
                                    Summaryfalse
                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                    SlicingThis element introduces a set of slices on MedicationRequest.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                    • value @ url
                                    • 16. MedicationRequest.extension:subsidisedConcurrentSupply
                                      Slice NamesubsidisedConcurrentSupply
                                      Definition

                                      The grounds which authorise a PBS or RPBS subsidy for the concurrent supply of a medication item specified in a prescription and all of its repeats.

                                      ShortGrounds for concurrent supply of medication
                                      Control0..1
                                      This element is affected by the following invariants: ele-1
                                      TypeExtension(Subsidised Concurrent Supply) (Extension Type: Coding)
                                      Is Modifierfalse
                                      Must Supporttrue
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      18. MedicationRequest.modifierExtension
                                      Definition

                                      May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                      ShortExtensions that cannot be ignored
                                      Comments

                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                      Control0..*
                                      TypeExtension
                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                                      Summaryfalse
                                      Requirements

                                      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                      Alternate Namesextensions, user content
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                      20. MedicationRequest.identifier
                                      Definition

                                      Identifiers associated with this medication request that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. They are business identifiers assigned to this resource by the performer or other systems and remain constant as the resource is updated and propagates from server to server.

                                      ShortExternal ids for this request
                                      Comments

                                      This is a business identifier, not a resource identifier.

                                      NoteThis is a business identifier, not a resource identifier (see discussion)
                                      Control1..*
                                      This element is affected by the following invariants: ele-1
                                      TypeIdentifier(Identifier, AU ETP Prescription Identifier, AU Local Prescription Identifier)
                                      Is Modifierfalse
                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                      22. MedicationRequest.status
                                      Definition

                                      A code specifying the current state of the order. Generally, this will be active or completed state.

                                      Shortactive | on-hold | cancelled | completed | entered-in-error | stopped | draft | unknown
                                      Comments

                                      This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

                                      Control1..1
                                      BindingThe codes SHALL be taken from medicationrequest Status
                                      (required to http://hl7.org/fhir/ValueSet/medicationrequest-status|4.0.1)

                                      A coded concept specifying the state of the prescribing event. Describes the lifecycle of the prescription.

                                      Typecode
                                      Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                      Must Supporttrue
                                      Obligations
                                        ObligationsActor
                                        SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                        SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                        Summarytrue
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        24. MedicationRequest.statusReason
                                        Definition

                                        Captures the reason for the current state of the MedicationRequest.

                                        ShortReason for current status
                                        Comments

                                        This is generally only used for "exception" statuses such as "suspended" or "cancelled". The reason why the MedicationRequest was created at all is captured in reasonCode, not here.

                                        Control0..1
                                        BindingFor example codes, see medicationRequest Status Reason Codes
                                        (example to http://hl7.org/fhir/ValueSet/medicationrequest-status-reason)

                                        Identifies the reasons for a given status.

                                        TypeCodeableConcept
                                        Is Modifierfalse
                                        Summaryfalse
                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                        26. MedicationRequest.intent
                                        Definition

                                        Whether the request is a proposal, plan, or an original order.

                                        Shortproposal | plan | order | original-order | reflex-order | filler-order | instance-order | option
                                        Comments

                                        It is expected that the type of requester will be restricted for different stages of a MedicationRequest. For example, Proposals can be created by a patient, relatedPerson, Practitioner or Device. Plans can be created by Practitioners, Patients, RelatedPersons and Devices. Original orders can be created by a Practitioner only.

                                        An instance-order is an instantiation of a request or order and may be used to populate Medication Administration Record.

                                        This element is labeled as a modifier because the intent alters when and how the resource is actually applicable.

                                        Control1..1
                                        BindingThe codes SHALL be taken from medicationRequest Intent
                                        (required to http://hl7.org/fhir/ValueSet/medicationrequest-intent|4.0.1)

                                        The kind of medication order.

                                        Typecode
                                        Is Modifiertrue because This element changes the interpretation of all descriptive attributes. For example "the time the request is recommended to occur" vs. "the time the request is authorized to occur" or "who is recommended to perform the request" vs. "who is authorized to perform the request
                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                        Must Supporttrue
                                        Obligations
                                          ObligationsActor
                                          SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                          SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          28. MedicationRequest.category
                                          Definition

                                          Indicates the type of medication request (for example, where the medication is expected to be consumed or administered (i.e. inpatient or outpatient)).

                                          ShortType of medication usage
                                          Comments

                                          The category can be used to include where the medication is expected to be consumed or other types of requests.

                                          Control1..*
                                          BindingFor example codes, see medicationRequest Category Codes
                                          (example to http://hl7.org/fhir/ValueSet/medicationrequest-category)

                                          A coded concept identifying the category of medication request. For example, where the medication is to be consumed or administered, or the type of medication treatment.

                                          TypeCodeableConcept
                                          Is Modifierfalse
                                          Summaryfalse
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          30. MedicationRequest.priority
                                          Definition

                                          Indicates how quickly the Medication Request should be addressed with respect to other requests.

                                          Shortroutine | urgent | asap | stat
                                          Control0..1
                                          BindingThe codes SHALL be taken from RequestPriority
                                          (required to http://hl7.org/fhir/ValueSet/request-priority|4.0.1)

                                          Identifies the level of importance to be assigned to actioning the request.

                                          Typecode
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          32. MedicationRequest.doNotPerform
                                          Definition

                                          If true indicates that the provider is asking for the medication request not to occur.

                                          ShortTrue if request is prohibiting action
                                          Comments

                                          If do not perform is not specified, the request is a positive request e.g. "do perform".

                                          Control0..1
                                          Typeboolean
                                          Is Modifiertrue because This element is labeled as a modifier because this element negates the request to occur (ie, this is a request for the medication not to be ordered or prescribed, etc)
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          34. MedicationRequest.reported[x]
                                          Definition

                                          Indicates if this record was captured as a secondary 'reported' record rather than as an original primary source-of-truth record. It may also indicate the source of the report.

                                          ShortReported rather than primary record
                                          Control0..1
                                          TypeChoice of: boolean, Reference(Patient, Practitioner, PractitionerRole, RelatedPerson, Organization)
                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                          Is Modifierfalse
                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                          Summarytrue
                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                          36. MedicationRequest.medication[x]
                                          Definition

                                          Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                          ShortMedication to be taken
                                          Comments

                                          If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                          Control1..1
                                          BindingFor example codes, see SNOMEDCTMedicationCodes
                                          (example to http://hl7.org/fhir/ValueSet/medication-codes)

                                          A coded concept identifying substance or product that can be ordered.

                                          TypeReference(Medication)
                                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                          Is Modifierfalse
                                          Must Supporttrue
                                          Obligations
                                            ObligationsActor
                                            SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                            SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                            Summarytrue
                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                            SlicingThis element introduces a set of slices on MedicationRequest.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
                                            • type @ $this
                                            • 38. MedicationRequest.medication[x]:medicationReference
                                              Slice NamemedicationReference
                                              Definition

                                              Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                              ShortPrescribed Medication
                                              Comments

                                              If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                              Control1..1
                                              This element is affected by the following invariants: inv-dh-pres-02
                                              TypeReference(AU Core Medication)
                                              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                              Is Modifierfalse
                                              Must Supporttrue
                                              Obligations
                                                ObligationsActor
                                                SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                Summarytrue
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                inv-dh-pres-02: At least reference shall be present (reference.exists())
                                                40. MedicationRequest.medication[x]:medicationCodeableConcept
                                                Slice NamemedicationCodeableConcept
                                                Definition

                                                Identifies the medication being requested. This is a link to a resource that represents the medication which may be the details of the medication or simply an attribute carrying a code that identifies the medication from a known list of medications.

                                                ShortCoded Prescribed Medication
                                                Comments

                                                If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the Medication resource is recommended. For example, if you require form or lot number or if the medication is compounded or extemporaneously prepared, then you must reference the Medication resource.

                                                Control0..1
                                                BindingFor example codes, see SNOMEDCTMedicationCodes
                                                (example to http://hl7.org/fhir/ValueSet/medication-codes)
                                                TypeCodeableConcept
                                                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                Is Modifierfalse
                                                Summarytrue
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                42. MedicationRequest.medication[x]:medicationCodeableConcept.id
                                                Definition

                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                ShortUnique id for inter-element referencing
                                                Control0..1
                                                Typestring
                                                Is Modifierfalse
                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                Summaryfalse
                                                44. MedicationRequest.medication[x]:medicationCodeableConcept.extension
                                                Definition

                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                ShortAdditional content defined by implementations
                                                Comments

                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                Control0..*
                                                TypeExtension
                                                Is Modifierfalse
                                                Summaryfalse
                                                Alternate Namesextensions, user content
                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                SlicingThis element introduces a set of slices on MedicationRequest.medication[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                • value @ url
                                                • 46. MedicationRequest.medication[x]:medicationCodeableConcept.coding
                                                  Definition

                                                  A reference to a code defined by a terminology system.

                                                  ShortCode defined by a terminology system
                                                  Comments

                                                  Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                  Control0..*
                                                  TypeCoding
                                                  Is Modifierfalse
                                                  Summarytrue
                                                  Requirements

                                                  Allows for alternative encodings within a code system, and translations to other code systems.

                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                  SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                  • pattern @ $this
                                                  • 48. MedicationRequest.medication[x]:medicationCodeableConcept.coding.id
                                                    Definition

                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                    ShortUnique id for inter-element referencing
                                                    Control0..1
                                                    Typestring
                                                    Is Modifierfalse
                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                    Summaryfalse
                                                    50. MedicationRequest.medication[x]:medicationCodeableConcept.coding.extension
                                                    Definition

                                                    An Extension

                                                    ShortExtension
                                                    Control0..*
                                                    TypeExtension
                                                    Is Modifierfalse
                                                    Summaryfalse
                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                    SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                    • value @ url
                                                    • 52. MedicationRequest.medication[x]:medicationCodeableConcept.coding.extension:medicationClass
                                                      Slice NamemedicationClass
                                                      Definition

                                                      The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                                      ShortMedication type
                                                      Control0..1
                                                      TypeExtension(Medication Type) (Extension Type: Coding)
                                                      Is Modifierfalse
                                                      Summaryfalse
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                      54. MedicationRequest.medication[x]:medicationCodeableConcept.coding.system
                                                      Definition

                                                      The identification of the code system that defines the meaning of the symbol in the code.

                                                      ShortIdentity of the terminology system
                                                      Comments

                                                      The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                      Control0..1
                                                      Typeuri
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Requirements

                                                      Need to be unambiguous about the source of the definition of the symbol.

                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      56. MedicationRequest.medication[x]:medicationCodeableConcept.coding.version
                                                      Definition

                                                      The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                      ShortVersion of the system - if relevant
                                                      Comments

                                                      Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                      NoteThis is a business version Id, not a resource version Id (see discussion)
                                                      Control0..1
                                                      Typestring
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      58. MedicationRequest.medication[x]:medicationCodeableConcept.coding.code
                                                      Definition

                                                      A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                      ShortSymbol in syntax defined by the system
                                                      Control0..1
                                                      Typecode
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Requirements

                                                      Need to refer to a particular code in the system.

                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      60. MedicationRequest.medication[x]:medicationCodeableConcept.coding.display
                                                      Definition

                                                      A representation of the meaning of the code in the system, following the rules of the system.

                                                      ShortRepresentation defined by the system
                                                      Control0..1
                                                      Typestring
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Requirements

                                                      Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      62. MedicationRequest.medication[x]:medicationCodeableConcept.coding.userSelected
                                                      Definition

                                                      Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                      ShortIf this coding was chosen directly by the user
                                                      Comments

                                                      Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                      Control0..1
                                                      Typeboolean
                                                      Is Modifierfalse
                                                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                      Summarytrue
                                                      Requirements

                                                      This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                      64. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs
                                                      Slice Namepbs
                                                      Definition

                                                      A reference to a code defined by a terminology system.

                                                      ShortCode defined by a terminology system
                                                      Comments

                                                      Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                      Control0..*
                                                      BindingThe codes SHALL be taken from PBS Item Codes
                                                      (required to http://terminology.hl7.org.au/ValueSet/pbs-item)
                                                      TypeCoding
                                                      Is Modifierfalse
                                                      Must Supporttrue
                                                      Obligations
                                                        ObligationsActor
                                                        SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                        SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                        Summarytrue
                                                        Requirements

                                                        Allows for alternative encodings within a code system, and translations to other code systems.

                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        66. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.id
                                                        Definition

                                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                        ShortUnique id for inter-element referencing
                                                        Control0..1
                                                        Typestring
                                                        Is Modifierfalse
                                                        XML FormatIn the XML format, this property is represented as an attribute.
                                                        Summaryfalse
                                                        68. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.extension
                                                        Definition

                                                        An Extension

                                                        ShortExtension
                                                        Control0..*
                                                        TypeExtension
                                                        Is Modifierfalse
                                                        Summaryfalse
                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                        SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                        • value @ url
                                                        • 70. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.extension:medicationClass
                                                          Slice NamemedicationClass
                                                          Definition

                                                          The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                                          ShortMedication type
                                                          Control0..1
                                                          TypeExtension(Medication Type) (Extension Type: Coding)
                                                          Is Modifierfalse
                                                          Summaryfalse
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                          72. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.system
                                                          Definition

                                                          The identification of the code system that defines the meaning of the symbol in the code.

                                                          ShortIdentity of the terminology system
                                                          Comments

                                                          The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                          Control0..1
                                                          Typeuri
                                                          Is Modifierfalse
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          Need to be unambiguous about the source of the definition of the symbol.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          74. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.version
                                                          Definition

                                                          The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                          ShortVersion of the system - if relevant
                                                          Comments

                                                          Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                          NoteThis is a business version Id, not a resource version Id (see discussion)
                                                          Control0..1
                                                          Typestring
                                                          Is Modifierfalse
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          76. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.code
                                                          Definition

                                                          A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                          ShortSymbol in syntax defined by the system
                                                          Control0..1
                                                          Typecode
                                                          Is Modifierfalse
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          Need to refer to a particular code in the system.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          78. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.display
                                                          Definition

                                                          A representation of the meaning of the code in the system, following the rules of the system.

                                                          ShortRepresentation defined by the system
                                                          Control0..1
                                                          Typestring
                                                          Is Modifierfalse
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          80. MedicationRequest.medication[x]:medicationCodeableConcept.coding:pbs.userSelected
                                                          Definition

                                                          Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                          ShortIf this coding was chosen directly by the user
                                                          Comments

                                                          Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                          Control0..1
                                                          Typeboolean
                                                          Is Modifierfalse
                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                          Summarytrue
                                                          Requirements

                                                          This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                          82. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt
                                                          Slice Nameamt
                                                          Definition

                                                          A reference to a code defined by a terminology system.

                                                          ShortCode defined by a terminology system
                                                          Comments

                                                          Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

                                                          Control0..*
                                                          BindingThe codes SHALL be taken from Australian Medication .
                                                          (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-medication-1)
                                                          TypeCoding
                                                          Is Modifierfalse
                                                          Must Supporttrue
                                                          Obligations
                                                            ObligationsActor
                                                            SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                            SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                            Summarytrue
                                                            Requirements

                                                            Allows for alternative encodings within a code system, and translations to other code systems.

                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            84. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.id
                                                            Definition

                                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                            ShortUnique id for inter-element referencing
                                                            Control0..1
                                                            Typestring
                                                            Is Modifierfalse
                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                            Summaryfalse
                                                            86. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.extension
                                                            Definition

                                                            An Extension

                                                            ShortExtension
                                                            Control0..*
                                                            TypeExtension
                                                            Is Modifierfalse
                                                            Summaryfalse
                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                            SlicingThis element introduces a set of slices on MedicationRequest.medication[x].coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                            • value @ url
                                                            • 88. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.extension:medicationClass
                                                              Slice NamemedicationClass
                                                              Definition

                                                              The type of information covered by the medication coding, e.g. branded product with no strength or form.

                                                              ShortMedication type
                                                              Control0..1
                                                              TypeExtension(Medication Type) (Extension Type: Coding)
                                                              Is Modifierfalse
                                                              Summaryfalse
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                              90. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.system
                                                              Definition

                                                              The identification of the code system that defines the meaning of the symbol in the code.

                                                              ShortIdentity of the terminology system
                                                              Comments

                                                              The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

                                                              Control0..1
                                                              Typeuri
                                                              Is Modifierfalse
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              Need to be unambiguous about the source of the definition of the symbol.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              92. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.version
                                                              Definition

                                                              The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

                                                              ShortVersion of the system - if relevant
                                                              Comments

                                                              Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

                                                              NoteThis is a business version Id, not a resource version Id (see discussion)
                                                              Control0..1
                                                              Typestring
                                                              Is Modifierfalse
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              94. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.code
                                                              Definition

                                                              A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

                                                              ShortSymbol in syntax defined by the system
                                                              Control0..1
                                                              Typecode
                                                              Is Modifierfalse
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              Need to refer to a particular code in the system.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              96. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.display
                                                              Definition

                                                              A representation of the meaning of the code in the system, following the rules of the system.

                                                              ShortRepresentation defined by the system
                                                              Control0..1
                                                              Typestring
                                                              Is Modifierfalse
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              98. MedicationRequest.medication[x]:medicationCodeableConcept.coding:amt.userSelected
                                                              Definition

                                                              Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

                                                              ShortIf this coding was chosen directly by the user
                                                              Comments

                                                              Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

                                                              Control0..1
                                                              Typeboolean
                                                              Is Modifierfalse
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              100. MedicationRequest.medication[x]:medicationCodeableConcept.text
                                                              Definition

                                                              A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

                                                              This may be a brand or generic name as suitable for the intent of the entry.

                                                              ShortMedication primary text
                                                              Comments

                                                              Very often the text is the same as a displayName of one of the codings.

                                                              Control0..1
                                                              Typestring
                                                              Is Modifierfalse
                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                              Summarytrue
                                                              Requirements

                                                              The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                              102. MedicationRequest.subject
                                                              Definition

                                                              A link to a resource representing the person or set of individuals to whom the medication will be given.

                                                              ShortWho or group medication request is for
                                                              Comments

                                                              The subject on a medication request is mandatory. For the secondary use case where the actual subject is not provided, there still must be an anonymized subject specified.

                                                              Control1..1
                                                              This element is affected by the following invariants: inv-dh-medreq-01
                                                              TypeReference(AU Core Patient)
                                                              Is Modifierfalse
                                                              Must Supporttrue
                                                              Obligations
                                                                ObligationsActor
                                                                SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                                SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                                Summarytrue
                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                inv-dh-medreq-01: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
                                                                104. MedicationRequest.encounter
                                                                Definition

                                                                The Encounter during which this [x] was created or to which the creation of this record is tightly associated.

                                                                ShortEncounter created as part of encounter/admission/stay
                                                                Comments

                                                                This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter." If there is a need to link to episodes of care they will be handled with an extension.

                                                                Control0..1
                                                                TypeReference(AU Core Encounter)
                                                                Is Modifierfalse
                                                                Must Supporttrue
                                                                Obligations
                                                                  ObligationsActor
                                                                  SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                                  SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                                  Summaryfalse
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  106. MedicationRequest.supportingInformation
                                                                  Definition

                                                                  Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                                  ShortInformation to support ordering of the medication
                                                                  Control0..*
                                                                  TypeReference(Resource)
                                                                  Is Modifierfalse
                                                                  Summaryfalse
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  SlicingThis element introduces a set of slices on MedicationRequest.supportingInformation. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                  • profile @ resolve()
                                                                  • 108. MedicationRequest.supportingInformation:bodyHeight
                                                                    Slice NamebodyHeight
                                                                    Definition

                                                                    Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                                    ShortObservation of Body Height
                                                                    Control0..1
                                                                    TypeReference(http://hl7.org.au/fhir/StructureDefinition/au-bodyheight)
                                                                    Is Modifierfalse
                                                                    Summaryfalse
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    110. MedicationRequest.supportingInformation:bodyWeight
                                                                    Slice NamebodyWeight
                                                                    Definition

                                                                    Include additional information (for example, patient height and weight) that supports the ordering of the medication.

                                                                    ShortObservation of Body Weight
                                                                    Control0..1
                                                                    TypeReference(http://hl7.org.au/fhir/StructureDefinition/au-bodyweight)
                                                                    Is Modifierfalse
                                                                    Summaryfalse
                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                    112. MedicationRequest.authoredOn
                                                                    Definition

                                                                    The date (and perhaps time) when the prescription was initially written or authored on.

                                                                    ShortCreated date
                                                                    Control1..1
                                                                    This element is affected by the following invariants: au-core-medreq-01
                                                                    TypedateTime
                                                                    Is Modifierfalse
                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                    Must Supporttrue
                                                                    Obligations
                                                                      ObligationsActor
                                                                      SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                                      SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                                      Summarytrue
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      au-core-medreq-01: Date shall be precise to the day or, if not available, the Data Absent Reason extension shall be present ($this.hasValue() implies (extension('http://hl7.org/fhir/StructureDefinition/data-absent-reason').value.exists().not() and $this.toString().length() >= 10))
                                                                      114. MedicationRequest.requester
                                                                      Definition

                                                                      The individual, organization, or device that initiated the request and has responsibility for its activation.

                                                                      ShortWho/What requested the Request
                                                                      Control1..1
                                                                      This element is affected by the following invariants: inv-dh-medreq-02
                                                                      TypeReference(ADHA Authoring PractitionerRole)
                                                                      Is Modifierfalse
                                                                      Must Supporttrue
                                                                      Obligations
                                                                        ObligationsActor
                                                                        SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                                        SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                                        Summarytrue
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        inv-dh-medreq-02: At least reference or display or a valid identifier shall be present (reference.exists() or display.exists() or identifier.where(system.count() + value.count() >1).exists())
                                                                        116. MedicationRequest.performer
                                                                        Definition

                                                                        The specified desired performer of the medication treatment (e.g. the performer of the medication administration).

                                                                        ShortIntended performer of administration
                                                                        Control0..1
                                                                        TypeReference(Practitioner, PractitionerRole, Organization, Patient, Device, RelatedPerson, CareTeam)
                                                                        Is Modifierfalse
                                                                        Summaryfalse
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        118. MedicationRequest.performerType
                                                                        Definition

                                                                        Indicates the type of performer of the administration of the medication.

                                                                        ShortDesired kind of performer of the medication administration
                                                                        Comments

                                                                        If specified without indicating a performer, this indicates that the performer must be of the specified type. If specified with a performer then it indicates the requirements of the performer if the designated performer is not available.

                                                                        Control0..1
                                                                        BindingFor example codes, see ProcedurePerformerRoleCodes
                                                                        (example to http://hl7.org/fhir/ValueSet/performer-role)

                                                                        Identifies the type of individual that is desired to administer the medication.

                                                                        TypeCodeableConcept
                                                                        Is Modifierfalse
                                                                        Summarytrue
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        120. MedicationRequest.recorder
                                                                        Definition

                                                                        The person who entered the order on behalf of another individual for example in the case of a verbal or a telephone order.

                                                                        ShortPerson who entered the request
                                                                        Control0..1
                                                                        TypeReference(Practitioner, PractitionerRole)
                                                                        Is Modifierfalse
                                                                        Summaryfalse
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        122. MedicationRequest.reasonCode
                                                                        Definition

                                                                        The reason or the indication for ordering or not ordering the medication.

                                                                        ShortReason or indication for ordering or not ordering the medication
                                                                        Comments

                                                                        This could be a diagnosis code. If a full condition record exists or additional detail is needed, use reasonReference.

                                                                        Control0..*
                                                                        BindingThe codes SHOULD be taken from Reason for Request .
                                                                        (preferred to https://healthterminologies.gov.au/fhir/ValueSet/reason-for-request-1)
                                                                        TypeCodeableConcept
                                                                        Is Modifierfalse
                                                                        Must Supporttrue
                                                                        Obligations
                                                                          ObligationsActor
                                                                          SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                                          SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                                          Summaryfalse
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          124. MedicationRequest.reasonReference
                                                                          Definition

                                                                          Condition or observation that supports why the medication was ordered.

                                                                          ShortCondition or observation that supports why the prescription is being written
                                                                          Comments

                                                                          This is a reference to a condition or observation that is the reason for the medication order. If only a code exists, use reasonCode.

                                                                          Control0..*
                                                                          TypeReference(AU Core Condition, Observation)
                                                                          Is Modifierfalse
                                                                          Must Supporttrue
                                                                          Must Support TypesNo must-support rules about the choice of types/profiles
                                                                          Obligations
                                                                            ObligationsActor
                                                                            SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                                            SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            126. MedicationRequest.instantiatesCanonical
                                                                            Definition

                                                                            The URL pointing to a protocol, guideline, orderset, or other definition that is adhered to in whole or in part by this MedicationRequest.

                                                                            ShortInstantiates FHIR protocol or definition
                                                                            Control0..*
                                                                            Typecanonical
                                                                            Is Modifierfalse
                                                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                            Summarytrue
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            128. MedicationRequest.instantiatesUri
                                                                            Definition

                                                                            The URL pointing to an externally maintained protocol, guideline, orderset or other definition that is adhered to in whole or in part by this MedicationRequest.

                                                                            ShortInstantiates external protocol or definition
                                                                            Control0..*
                                                                            Typeuri
                                                                            Is Modifierfalse
                                                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                            Summarytrue
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            130. MedicationRequest.basedOn
                                                                            Definition

                                                                            A plan or request that is fulfilled in whole or in part by this medication request.

                                                                            ShortWhat request fulfills
                                                                            Control0..*
                                                                            This element is affected by the following invariants: inv-dh-pres-01
                                                                            TypeReference(ADHA Core MedicationRequest)
                                                                            Is Modifierfalse
                                                                            Must Supporttrue
                                                                            Summarytrue
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            132. MedicationRequest.groupIdentifier
                                                                            Definition

                                                                            A shared identifier common to all requests that were authorized more or less simultaneously by a single author, representing the identifier of the requisition or prescription.

                                                                            ShortComposite request this is part of
                                                                            Control0..1
                                                                            TypeIdentifier
                                                                            Is Modifierfalse
                                                                            Summarytrue
                                                                            Requirements

                                                                            Requests are linked either by a "basedOn" relationship (i.e. one request is fulfilling another) or by having a common requisition. Requests that are part of the same requisition are generally treated independently from the perspective of changing their state or maintaining them after initial creation.

                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            134. MedicationRequest.courseOfTherapyType
                                                                            Definition

                                                                            The description of the overall patte3rn of the administration of the medication to the patient.

                                                                            ShortOverall pattern of medication administration
                                                                            Comments

                                                                            This attribute should not be confused with the protocol of the medication.

                                                                            Control0..1
                                                                            BindingFor example codes, see medicationRequest Course of Therapy Codes
                                                                            (example to http://hl7.org/fhir/ValueSet/medicationrequest-course-of-therapy)

                                                                            Identifies the overall pattern of medication administratio.

                                                                            TypeCodeableConcept
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            136. MedicationRequest.insurance
                                                                            Definition

                                                                            Insurance plans, coverage extensions, pre-authorizations and/or pre-determinations that may be required for delivering the requested service.

                                                                            ShortAssociated insurance coverage
                                                                            Control0..*
                                                                            TypeReference(Coverage, ClaimResponse)
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            138. MedicationRequest.note
                                                                            Definition

                                                                            Extra information about the prescription that could not be conveyed by the other attributes.

                                                                            ShortInformation about the prescription
                                                                            Control0..*
                                                                            TypeAnnotation
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            140. MedicationRequest.dosageInstruction
                                                                            Definition

                                                                            Indicates how the medication is/was taken or should be taken by the patient.

                                                                            ShortDosage information in an Australian healthcare context
                                                                            Comments

                                                                            There are examples where a medication request may include the option of an oral dose or an Intravenous or Intramuscular dose. For example, "Ondansetron 8mg orally or IV twice a day as needed for nausea" or "Compazine® (prochlorperazine) 5-10mg PO or 25mg PR bid prn nausea or vomiting". In these cases, two medication requests would be created that could be grouped together. The decision on which dose and route of administration to use is based on the patient's condition at the time the dose is needed.

                                                                            Control0..*
                                                                            TypeDosage(AU Base Dosage)
                                                                            Is Modifierfalse
                                                                            Must Supporttrue
                                                                            Obligations
                                                                              ObligationsActor
                                                                              SHALL:populate-if-knownhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder
                                                                              SHALL:no-errorhttp://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              142. MedicationRequest.dispenseRequest
                                                                              Definition

                                                                              Indicates the specific details for the dispense or medication supply part of a medication request (also known as a Medication Prescription or Medication Order). Note that this information is not always sent with the order. There may be in some settings (e.g. hospitals) institutional or system support for completing the dispense details in the pharmacy department.

                                                                              ShortRequested dispensing
                                                                              Control1..1
                                                                              TypeBackboneElement
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              144. MedicationRequest.dispenseRequest.id
                                                                              Definition

                                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                              ShortUnique id for inter-element referencing
                                                                              Control0..1
                                                                              Typestring
                                                                              Is Modifierfalse
                                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                                              Summaryfalse
                                                                              146. MedicationRequest.dispenseRequest.extension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                              ShortAdditional content defined by implementations
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Alternate Namesextensions, user content
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              148. MedicationRequest.dispenseRequest.modifierExtension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                              ShortExtensions that cannot be ignored even if unrecognized
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                              Summarytrue
                                                                              Requirements

                                                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                              Alternate Namesextensions, user content, modifiers
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              150. MedicationRequest.dispenseRequest.initialFill
                                                                              Definition

                                                                              Indicates the quantity or duration for the first dispense of the medication.

                                                                              ShortFirst fill details
                                                                              Comments

                                                                              If populating this element, either the quantity or the duration must be included.

                                                                              Control0..1
                                                                              TypeBackboneElement
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              152. MedicationRequest.dispenseRequest.initialFill.id
                                                                              Definition

                                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                              ShortUnique id for inter-element referencing
                                                                              Control0..1
                                                                              Typestring
                                                                              Is Modifierfalse
                                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                                              Summaryfalse
                                                                              154. MedicationRequest.dispenseRequest.initialFill.extension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                              ShortAdditional content defined by implementations
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Alternate Namesextensions, user content
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              156. MedicationRequest.dispenseRequest.initialFill.modifierExtension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                              ShortExtensions that cannot be ignored even if unrecognized
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                              Summarytrue
                                                                              Requirements

                                                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                              Alternate Namesextensions, user content, modifiers
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              158. MedicationRequest.dispenseRequest.initialFill.quantity
                                                                              Definition

                                                                              The amount or quantity to provide as part of the first dispense.

                                                                              ShortFirst fill quantity
                                                                              Control0..1
                                                                              TypeQuantity(SimpleQuantity)
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              160. MedicationRequest.dispenseRequest.initialFill.duration
                                                                              Definition

                                                                              The length of time that the first dispense is expected to last.

                                                                              ShortFirst fill duration
                                                                              Control0..1
                                                                              TypeDuration
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              162. MedicationRequest.dispenseRequest.dispenseInterval
                                                                              Definition

                                                                              The minimum period of time that must occur between dispenses of the medication.

                                                                              ShortMinimum period of time between dispenses
                                                                              Control0..1
                                                                              TypeDuration
                                                                              Is Modifierfalse
                                                                              Must Supporttrue
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              164. MedicationRequest.dispenseRequest.validityPeriod
                                                                              Definition

                                                                              This indicates the validity period of a prescription (stale dating the Prescription).

                                                                              ShortTime period supply is authorized for
                                                                              Comments

                                                                              It reflects the prescribers' perspective for the validity of the prescription. Dispenses must not be made against the prescription outside of this period. The lower-bound of the Dispensing Window signifies the earliest date that the prescription can be filled for the first time. If an upper-bound is not specified then the Prescription is open-ended or will default to a stale-date based on regulations.

                                                                              Control1..1
                                                                              TypePeriod
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Requirements

                                                                              Indicates when the Prescription becomes valid, and when it ceases to be a dispensable Prescription.

                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              166. MedicationRequest.dispenseRequest.numberOfRepeatsAllowed
                                                                              Definition

                                                                              An integer indicating the number of times, in addition to the original dispense, (aka refills or repeats) that the patient can receive the prescribed medication. Usage Notes: This integer does not include the original order dispense. This means that if an order indicates dispense 30 tablets plus "3 repeats", then the order can be dispensed a total of 4 times and the patient can receive a total of 120 tablets. A prescriber may explicitly say that zero refills are permitted after the initial dispense.

                                                                              ShortMaximum repeats authorised
                                                                              Comments

                                                                              If displaying "number of authorized fills", add 1 to this number.

                                                                              Control0..1
                                                                              TypeunsignedInt
                                                                              Is Modifierfalse
                                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              168. MedicationRequest.dispenseRequest.quantity
                                                                              Definition

                                                                              The amount that is to be dispensed for one fill.

                                                                              ShortAmount of medication to supply per dispense
                                                                              Control0..1
                                                                              TypeQuantity(SimpleQuantity)
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              170. MedicationRequest.dispenseRequest.expectedSupplyDuration
                                                                              Definition

                                                                              Identifies the period time over which the supplied product is expected to be used, or the length of time the dispense is expected to last.

                                                                              ShortNumber of days supply per dispense
                                                                              Comments

                                                                              In some situations, this attribute may be used instead of quantity to identify the amount supplied by how long it is expected to last, rather than the physical quantity issued, e.g. 90 days supply of medication (based on an ordered dosage). When possible, it is always better to specify quantity, as this tends to be more precise. expectedSupplyDuration will always be an estimate that can be influenced by external factors.

                                                                              Control0..1
                                                                              TypeDuration
                                                                              Is Modifierfalse
                                                                              Must Supporttrue
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              172. MedicationRequest.dispenseRequest.performer
                                                                              Definition

                                                                              Indicates the intended dispensing Organization specified by the prescriber.

                                                                              ShortIntended dispenser
                                                                              Control0..1
                                                                              TypeReference(Organization)
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              174. MedicationRequest.substitution
                                                                              Definition

                                                                              Indicates whether or not substitution can or should be part of the dispense. In some cases, substitution must happen, in other cases substitution must not happen. This block explains the prescriber's intent. If nothing is specified substitution may be done.

                                                                              ShortBrand substitution details
                                                                              Control0..1
                                                                              TypeBackboneElement
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              176. MedicationRequest.substitution.id
                                                                              Definition

                                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                              ShortUnique id for inter-element referencing
                                                                              Control0..1
                                                                              Typestring
                                                                              Is Modifierfalse
                                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                                              Summaryfalse
                                                                              178. MedicationRequest.substitution.extension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                              ShortAdditional content defined by implementations
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Alternate Namesextensions, user content
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              180. MedicationRequest.substitution.modifierExtension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                              ShortExtensions that cannot be ignored even if unrecognized
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                              Summarytrue
                                                                              Requirements

                                                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                              Alternate Namesextensions, user content, modifiers
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              182. MedicationRequest.substitution.allowed[x]
                                                                              Definition

                                                                              True if the prescriber allows a different drug to be dispensed from what was prescribed.

                                                                              ShortBrand substitution flag
                                                                              Comments

                                                                              This element is labeled as a modifier because whether substitution is allow or not, it cannot be ignored.

                                                                              Control1..1
                                                                              BindingFor example codes, see ActSubstanceAdminSubstitutionCode
                                                                              (example to http://terminology.hl7.org/ValueSet/v3-ActSubstanceAdminSubstitutionCode)

                                                                              Identifies the type of substitution allowed.

                                                                              TypeChoice of: boolean, CodeableConcept
                                                                              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                                                                              Is Modifierfalse
                                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              184. MedicationRequest.substitution.reason
                                                                              Definition

                                                                              Indicates the reason for the substitution, or why substitution must or must not be performed.

                                                                              ShortWhy should (not) substitution be made
                                                                              Control0..1
                                                                              BindingThe codes SHOULD be taken from Medicine Substitution Reason .
                                                                              (preferred to https://healthterminologies.gov.au/fhir/ValueSet/medicine-substitution-reason-1)
                                                                              TypeCodeableConcept
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              186. MedicationRequest.priorPrescription
                                                                              Definition

                                                                              A link to a resource representing an earlier order related order or prescription.

                                                                              ShortAn order/prescription that is being replaced
                                                                              Control0..1
                                                                              TypeReference(ADHA Core MedicationRequest)
                                                                              Is Modifierfalse
                                                                              Must Supporttrue
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              188. MedicationRequest.detectedIssue
                                                                              Definition

                                                                              Indicates an actual or potential clinical issue with or between one or more active or proposed clinical actions for a patient; e.g. Drug-drug interaction, duplicate therapy, dosage alert etc.

                                                                              ShortClinical Issue with action
                                                                              Comments

                                                                              This element can include a detected issue that has been identified either by a decision support system or by a clinician and may include information on the steps that were taken to address the issue.

                                                                              Control0..*
                                                                              TypeReference(DetectedIssue)
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Alternate NamesContraindication, Drug Utilization Review (DUR), Alert
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              190. MedicationRequest.eventHistory
                                                                              Definition

                                                                              Links to Provenance records for past versions of this resource or fulfilling request or event resources that identify key state transitions or updates that are likely to be relevant to a user looking at the current version of the resource.

                                                                              ShortA list of events of interest in the lifecycle
                                                                              Comments

                                                                              This might not include provenances for all versions of the request – only those deemed “relevant” or important. This SHALL NOT include the provenance associated with this current version of the resource. (If that provenance is deemed to be a “relevant” change, it will need to be added as part of a later update. Until then, it can be queried directly as the provenance that points to this version using _revinclude All Provenances should have some historical version of this Request as their subject.).

                                                                              Control0..*
                                                                              TypeReference(Provenance)
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))