Australian Digital Health Agency FHIR Implementation Guide
1.2.0-ci-build - draft Australia flag

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: ADHAMedicationAdministrationCore - Detailed Descriptions

Draft as of 2024-09-12

Definitions for the dh-medicationadministration-core-1 resource profile.

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

0. MedicationAdministration
2. MedicationAdministration.status
Must Supporttrue
4. MedicationAdministration.statusReason
Must Supporttrue
6. MedicationAdministration.category
Must Supporttrue
8. MedicationAdministration.medication[x]
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Must Supporttrue
SlicingThis element introduces a set of slices on MedicationAdministration.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
  • type @ $this
  • 10. MedicationAdministration.medication[x]:medicationCodeableConcept
    Slice NamemedicationCodeableConcept
    TypeCodeableConcept
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    12. MedicationAdministration.medication[x]:medicationCodeableConcept.coding
    SlicingThis element introduces a set of slices on MedicationAdministration.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ system
    • 14. MedicationAdministration.medication[x]:medicationCodeableConcept.coding:pbs
      Slice Namepbs
      Must Supporttrue
      16. MedicationAdministration.medication[x]:medicationCodeableConcept.coding:amt
      Slice Nameamt
      Must Supporttrue
      18. MedicationAdministration.medication[x]:medicationReference
      Slice NamemedicationReference
      TypeReference(ADHA Core Medication)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      20. MedicationAdministration.subject
      TypeReference(ADHA Core Patient)
      Must Supporttrue
      Invariantsinv-dh-mad-01: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
      22. MedicationAdministration.context
      TypeReference(ADHA Core Encounter)
      Must Supporttrue
      24. MedicationAdministration.effective[x]
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Must Supporttrue
      26. MedicationAdministration.performer
      Must Supporttrue
      Invariantsinv-dh-mad-02: If present, an actor shall at least have a reference, an identifier or a display (actor.exists() implies actor.all($this.reference.exists() or $this.identifier.exists() or $this.display.exists()))
      28. MedicationAdministration.performer.function
      Must Supporttrue
      30. MedicationAdministration.performer.actor
      TypeReference(ADHA Authoring PractitionerRole, ADHA Authoring RelatedPerson, ADHA Core Patient)
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      32. MedicationAdministration.reasonCode
      Must Supporttrue
      34. MedicationAdministration.reasonReference
      Must Supporttrue
      36. MedicationAdministration.note
      Must Supporttrue
      38. MedicationAdministration.dosage
      Must Supporttrue
      40. MedicationAdministration.dosage.text
      Must Supporttrue
      42. MedicationAdministration.dosage.site
      Must Supporttrue
      44. MedicationAdministration.dosage.route
      Must Supporttrue
      46. MedicationAdministration.dosage.method
      Must Supporttrue
      48. MedicationAdministration.dosage.dose
      Must Supporttrue
      50. MedicationAdministration.dosage.rate[x]
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Must Supporttrue

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

      0. MedicationAdministration
      Definition

      Describes the event of a patient consuming or otherwise being administered a medication. This may be as simple as swallowing a tablet or it may be a long running infusion. Related resources tie this event to the authorizing prescription, and the specific encounter between patient and health care practitioner.

      ShortA record of medication administered to a patient in an Australian healthcare contextAdministration of medication to a patient
      Control0..*
      Is Modifierfalse
      Summaryfalse
      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())
      2. MedicationAdministration.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. MedicationAdministration.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())
      6. MedicationAdministration.status
      Definition

      Will generally be set to show that the administration has been completed. For some long running administrations such as infusions, it is possible for an administration to be started but not completed or it may be paused while some other process is under way.

      Shortin-progress | not-done | on-hold | completed | entered-in-error | stopped | 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 MedicationAdministration Status Codeshttp://hl7.org/fhir/ValueSet/medication-admin-status|4.0.1
      (required to http://hl7.org/fhir/ValueSet/medication-admin-status|4.0.1)

      A set of codes indicating the current status of a MedicationAdministration.

      Typecode
      Is Modifiertrue because This element is labelled 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
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      8. MedicationAdministration.statusReason
      Definition

      A code indicating why the administration was not performed.

      ShortReason administration not performed
      Control0..*
      BindingFor example codes, see SNOMEDCTReasonMedicationNotGivenCodeshttp://hl7.org/fhir/ValueSet/reason-medication-not-given-codes
      (example to http://hl7.org/fhir/ValueSet/reason-medication-not-given-codes)

      A set of codes indicating the reason why the MedicationAdministration is negated.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      10. MedicationAdministration.category
      Definition

      Indicates where the medication is expected to be consumed or administered.

      ShortType of medication usage
      Control0..1
      BindingThe codes SHOULD be taken from MedicationAdministration Category Codeshttp://hl7.org/fhir/ValueSet/medication-admin-category
      (preferred to http://hl7.org/fhir/ValueSet/medication-admin-category)

      A coded concept describing where the medication administered is expected to occur.

      TypeCodeableConcept
      Is Modifierfalse
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      12. MedicationAdministration.medication[x]
      Definition

      Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

      ShortMedication DetailWhat was administered
      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, 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)

      Codes identifying substance or product that can be administered.

      TypeChoice of: CodeableConcept, Reference(Medication)
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Must Supporttrue
      Must Support TypesNo must-support rules about the choice of types/profiles
      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 MedicationAdministration.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
      • type @ $this
      • 14. MedicationAdministration.medication[x]:medicationCodeableConcept
        Slice NamemedicationCodeableConcept
        Definition

        Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

        ShortCoded MedicationWhat was administered
        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, 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)
        Additional BindingsPurposeDocumentation
        Australian Medication .Preferred

        This value set is for use when AMT (Australian Medicines Terminology) codes are preferred.

        PBS Item CodesPreferred

        This value set is for use when PBS (Pharmaceutical Benefits Scheme) item codes are preferred.

        MIMSPreferred

        This value set is for use when MIMS (Monthly Index of Medical Specialties) codes are preferred.

        GTINPreferred

        This value set is for use when GTIN (Global Trade Item Number) codes are preferred.

        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()))
        16. MedicationAdministration.medication[x]:medicationCodeableConcept.coding
        Definition

        A reference to a code defined by a terminology system.

        ShortMedication CodesCode 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 MedicationAdministration.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ system
        • 18. MedicationAdministration.medication[x]:medicationCodeableConcept.coding:pbs
          Slice Namepbs
          Definition

          A reference to a code defined by a terminology system.

          ShortMedication CodesCode 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
          Must Supporttrue
          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()))
          20. MedicationAdministration.medication[x]:medicationCodeableConcept.coding:amt
          Slice Nameamt
          Definition

          A reference to a code defined by a terminology system.

          ShortMedication CodesCode 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
          Must Supporttrue
          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()))
          22. MedicationAdministration.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())
          24. MedicationAdministration.medication[x]:medicationReference
          Slice NamemedicationReference
          Definition

          Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

          ShortMedication ReferenceWhat was administered
          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, then you must reference the Medication resource.

          Control01..1
          TypeReference(ADHA Core Medication, Medication), CodeableConcept
          [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()))
          26. MedicationAdministration.subject
          Definition

          The person or animal or group receiving the medication.

          ShortWho received medication
          Control1..1
          This element is affected by the following invariants: inv-dh-mad-01
          TypeReference(ADHA Core Patient, Patient, Group)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          inv-dh-mad-01: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
          28. MedicationAdministration.context
          Definition

          The visit, admission, or other contact between patient and health care provider during which the medication administration was performed.

          ShortEncounter or Episode of Care administered as part of
          Control0..1
          TypeReference(ADHA Core Encounter, Encounter, EpisodeOfCare)
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. MedicationAdministration.effective[x]
          Definition

          A specific date/time or interval of time during which the administration took place (or did not take place, when the 'notGiven' attribute is true). For many administrations, such as swallowing a tablet the use of dateTime is more appropriate.

          ShortStart and end time of administration
          Control1..1
          TypeChoice of: dateTime, Period
          [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
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          32. MedicationAdministration.performer
          Definition

          Indicates who or what performed the medication administration and how they were involved.

          ShortWho performed the medication administration and what they did
          Control0..*
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          inv-dh-mad-02: If present, an actor shall at least have a reference, an identifier or a display (actor.exists() implies actor.all($this.reference.exists() or $this.identifier.exists() or $this.display.exists()))
          34. MedicationAdministration.performer.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())
          36. MedicationAdministration.performer.function
          Definition

          Distinguishes the type of involvement of the performer in the medication administration.

          ShortType of performance
          Control0..1
          BindingFor example codes, see MedicationAdministration Performer Function Codeshttp://hl7.org/fhir/ValueSet/med-admin-perform-function
          (example to http://hl7.org/fhir/ValueSet/med-admin-perform-function)

          A code describing the role an individual played in administering the medication.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          38. MedicationAdministration.performer.actor
          Definition

          Indicates who or what performed the medication administration.

          ShortWho performed the medication administration
          Control1..1
          This element is affected by the following invariants: inv-dh-mad-02
          TypeReference(ADHA Authoring PractitionerRole, ADHA Authoring RelatedPerson, ADHA Core Patient, Practitioner, PractitionerRole, Patient, RelatedPerson, Device)
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          40. MedicationAdministration.reasonCode
          Definition

          A code indicating why the medication was given.

          ShortReason administration performed
          Control0..*
          BindingFor example codes, see ReasonMedicationGivenCodeshttp://hl7.org/fhir/ValueSet/reason-medication-given-codes
          (example to http://hl7.org/fhir/ValueSet/reason-medication-given-codes)

          A set of codes indicating the reason why the MedicationAdministration was made.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          42. MedicationAdministration.reasonReference
          Definition

          Condition or observation that supports why the medication was administered.

          ShortCondition or observation that supports why the medication was administered
          Comments

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

          Control0..*
          TypeReference(Condition, Observation, DiagnosticReport)
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          44. MedicationAdministration.note
          Definition

          Extra information about the medication administration that is not conveyed by the other attributes.

          ShortInformation about the administration
          Control0..*
          TypeAnnotation
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          46. MedicationAdministration.dosage
          Definition

          Describes the medication dosage information details e.g. dose, rate, site, route, etc.

          ShortDetails of how medication was taken
          Control0..1
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          mad-1: SHALL have at least one of dosage.dose or dosage.rate[x] (dose.exists() or rate.exists())
          mad-1: SHALL have at least one of dosage.dose or dosage.rate[x] (dose.exists() or rate.exists())
          48. MedicationAdministration.dosage.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())
          50. MedicationAdministration.dosage.text
          Definition

          Free text dosage can be used for cases where the dosage administered is too complex to code. When coded dosage is present, the free text dosage may still be present for display to humans.

          The dosage instructions should reflect the dosage of the medication that was administered.

          ShortFree text dosage instructions e.g. SIG
          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          52. MedicationAdministration.dosage.site
          Definition

          A coded specification of the anatomic site where the medication first entered the body. For example, "left arm".

          ShortBody site administered to
          Comments

          If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

          Control0..1
          BindingThe codes SHOULD be taken from For example codes, see Body Site .http://hl7.org/fhir/ValueSet/approach-site-codes
          (preferred to https://healthterminologies.gov.au/fhir/ValueSet/body-site-1)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          54. MedicationAdministration.dosage.route
          Definition

          A code specifying the route or physiological path of administration of a therapeutic agent into or onto the patient. For example, topical, intravenous, etc.

          ShortPath of substance into body
          Control0..1
          BindingThe codes SHOULD be taken from For example codes, see Route of Administration .http://hl7.org/fhir/ValueSet/route-codes
          (preferred to https://healthterminologies.gov.au/fhir/ValueSet/route-of-administration-1)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          56. MedicationAdministration.dosage.method
          Definition

          A coded value indicating the method by which the medication is intended to be or was introduced into or on the body. This attribute will most often NOT be populated. It is most commonly used for injections. For example, Slow Push, Deep IV.

          ShortHow drug was administered
          Comments

          One of the reasons this attribute is not used often, is that the method is often pre-coordinated with the route and/or form of administration. This means the codes used in route or form may pre-coordinate the method in the route code or the form code. The implementation decision about what coding system to use for route or form code will determine how frequently the method code will be populated e.g. if route or form code pre-coordinate method code, then this attribute will not be populated often; if there is no pre-coordination then method code may be used frequently.

          Control0..1
          BindingThe codes SHOULD be taken from For example codes, see SNOMEDCTAdministrationMethodCodeshttp://hl7.org/fhir/ValueSet/administration-method-codes
          (preferred to http://hl7.org/fhir/ValueSet/administration-method-codes)
          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          58. MedicationAdministration.dosage.dose
          Definition

          The amount of the medication given at one administration event. Use this value when the administration is essentially an instantaneous event such as a swallowing a tablet or giving an injection.

          ShortAmount of medication per dose
          Comments

          If the administration is not instantaneous (rate is present), this can be specified to convey the total amount administered over period of time of a single administration.

          Control0..1
          TypeQuantity(SimpleQuantity)
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          60. MedicationAdministration.dosage.rate[x]
          Definition

          Identifies the speed with which the medication was or will be introduced into the patient. Typically, the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time, e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours.

          ShortDose quantity per unit of time
          Comments

          If the rate changes over time, and you want to capture this in MedicationAdministration, then each change should be captured as a distinct MedicationAdministration, with a specific MedicationAdministration.dosage.rate, and the date time when the rate change occurred. Typically, the MedicationAdministration.dosage.rate element is not used to convey an average rate.

          Control0..1
          TypeChoice of: Ratio, Quantity(SimpleQuantity)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          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. MedicationAdministration
          Definition

          Describes the event of a patient consuming or otherwise being administered a medication. This may be as simple as swallowing a tablet or it may be a long running infusion. Related resources tie this event to the authorizing prescription, and the specific encounter between patient and health care practitioner.

          ShortA record of medication administered to a patient in an Australian healthcare context
          Control0..*
          Is Modifierfalse
          Summaryfalse
          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())
          2. MedicationAdministration.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. MedicationAdministration.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. MedicationAdministration.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. MedicationAdministration.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. MedicationAdministration.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. MedicationAdministration.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. MedicationAdministration.extension
          Definition

          May be used to represent additional information that is not part of the basic definition of the resource. 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())
          16. MedicationAdministration.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())
          18. MedicationAdministration.identifier
          Definition

          Identifiers associated with this Medication Administration 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 identifier
          Comments

          This is a business identifier, not a resource identifier.

          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..*
          TypeIdentifier
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          20. MedicationAdministration.instantiates
          Definition

          A protocol, guideline, orderset, or other definition that was adhered to in whole or in part by this event.

          ShortInstantiates 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()))
          22. MedicationAdministration.partOf
          Definition

          A larger event of which this particular event is a component or step.

          ShortPart of referenced event
          Control0..*
          TypeReference(MedicationAdministration, Procedure)
          Is Modifierfalse
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          24. MedicationAdministration.status
          Definition

          Will generally be set to show that the administration has been completed. For some long running administrations such as infusions, it is possible for an administration to be started but not completed or it may be paused while some other process is under way.

          Shortin-progress | not-done | on-hold | completed | entered-in-error | stopped | 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 MedicationAdministration Status Codes
          (required to http://hl7.org/fhir/ValueSet/medication-admin-status|4.0.1)

          A set of codes indicating the current status of a MedicationAdministration.

          Typecode
          Is Modifiertrue because This element is labelled 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
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          26. MedicationAdministration.statusReason
          Definition

          A code indicating why the administration was not performed.

          ShortReason administration not performed
          Control0..*
          BindingFor example codes, see SNOMEDCTReasonMedicationNotGivenCodes
          (example to http://hl7.org/fhir/ValueSet/reason-medication-not-given-codes)

          A set of codes indicating the reason why the MedicationAdministration is negated.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          28. MedicationAdministration.category
          Definition

          Indicates where the medication is expected to be consumed or administered.

          ShortType of medication usage
          Control0..1
          BindingThe codes SHOULD be taken from MedicationAdministration Category Codes
          (preferred to http://hl7.org/fhir/ValueSet/medication-admin-category)

          A coded concept describing where the medication administered is expected to occur.

          TypeCodeableConcept
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. MedicationAdministration.medication[x]
          Definition

          Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

          ShortMedication Detail
          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, then you must reference the Medication resource.

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

          Codes identifying substance or product that can be administered.

          TypeChoice of: CodeableConcept, Reference(Medication)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          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 MedicationAdministration.medication[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
          • type @ $this
          • 32. MedicationAdministration.medication[x]:medicationCodeableConcept
            Slice NamemedicationCodeableConcept
            Definition

            Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

            ShortCoded 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, then you must reference the Medication resource.

            Control0..1
            BindingFor example codes, see SNOMEDCTMedicationCodes
            (example to http://hl7.org/fhir/ValueSet/medication-codes)
            Additional BindingsPurposeDocumentation
            Australian Medication .Preferred

            This value set is for use when AMT (Australian Medicines Terminology) codes are preferred.

            PBS Item CodesPreferred

            This value set is for use when PBS (Pharmaceutical Benefits Scheme) item codes are preferred.

            MIMSPreferred

            This value set is for use when MIMS (Monthly Index of Medical Specialties) codes are preferred.

            GTINPreferred

            This value set is for use when GTIN (Global Trade Item Number) codes are preferred.

            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()))
            34. MedicationAdministration.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
            36. MedicationAdministration.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 MedicationAdministration.medication[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 38. MedicationAdministration.medication[x]:medicationCodeableConcept.coding
              Definition

              A reference to a code defined by a terminology system.

              ShortMedication Codes
              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 MedicationAdministration.medication[x].coding. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ system
              • 40. MedicationAdministration.medication[x]:medicationCodeableConcept.coding:pbs
                Slice Namepbs
                Definition

                A reference to a code defined by a terminology system.

                ShortMedication Codes
                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
                Must Supporttrue
                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()))
                42. MedicationAdministration.medication[x]:medicationCodeableConcept.coding:amt
                Slice Nameamt
                Definition

                A reference to a code defined by a terminology system.

                ShortMedication Codes
                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
                Must Supporttrue
                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()))
                44. MedicationAdministration.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
                46. MedicationAdministration.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 MedicationAdministration.medication[x].coding.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 48. MedicationAdministration.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())
                  50. MedicationAdministration.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()))
                  52. MedicationAdministration.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()))
                  54. MedicationAdministration.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()))
                  56. MedicationAdministration.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()))
                  58. MedicationAdministration.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()))
                  60. MedicationAdministration.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()))
                  62. MedicationAdministration.medication[x]:medicationReference
                  Slice NamemedicationReference
                  Definition

                  Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

                  ShortMedication Reference
                  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, then you must reference the Medication resource.

                  Control0..1
                  TypeReference(ADHA Core 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()))
                  64. MedicationAdministration.subject
                  Definition

                  The person or animal or group receiving the medication.

                  ShortWho received medication
                  Control1..1
                  This element is affected by the following invariants: inv-dh-mad-01
                  TypeReference(ADHA Core Patient)
                  Is Modifierfalse
                  Must Supporttrue
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  inv-dh-mad-01: At least reference or a valid identifier shall be present (reference.exists() or identifier.where(system.count() + value.count() >1).exists())
                  66. MedicationAdministration.context
                  Definition

                  The visit, admission, or other contact between patient and health care provider during which the medication administration was performed.

                  ShortEncounter or Episode of Care administered as part of
                  Control0..1
                  TypeReference(ADHA Core Encounter)
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  68. MedicationAdministration.supportingInformation
                  Definition

                  Additional information (for example, patient height and weight) that supports the administration of the medication.

                  ShortAdditional information to support administration
                  Control0..*
                  TypeReference(Resource)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  70. MedicationAdministration.effective[x]
                  Definition

                  A specific date/time or interval of time during which the administration took place (or did not take place, when the 'notGiven' attribute is true). For many administrations, such as swallowing a tablet the use of dateTime is more appropriate.

                  ShortStart and end time of administration
                  Control1..1
                  TypeChoice of: dateTime, Period
                  [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
                  Must Supporttrue
                  Must Support TypesNo must-support rules about the choice of types/profiles
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  72. MedicationAdministration.performer
                  Definition

                  Indicates who or what performed the medication administration and how they were involved.

                  ShortWho performed the medication administration and what they did
                  Control0..*
                  TypeBackboneElement
                  Is Modifierfalse
                  Must Supporttrue
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  inv-dh-mad-02: If present, an actor shall at least have a reference, an identifier or a display (actor.exists() implies actor.all($this.reference.exists() or $this.identifier.exists() or $this.display.exists()))
                  74. MedicationAdministration.performer.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
                  76. MedicationAdministration.performer.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())
                  78. MedicationAdministration.performer.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())
                  80. MedicationAdministration.performer.function
                  Definition

                  Distinguishes the type of involvement of the performer in the medication administration.

                  ShortType of performance
                  Control0..1
                  BindingFor example codes, see MedicationAdministration Performer Function Codes
                  (example to http://hl7.org/fhir/ValueSet/med-admin-perform-function)

                  A code describing the role an individual played in administering the medication.

                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  82. MedicationAdministration.performer.actor
                  Definition

                  Indicates who or what performed the medication administration.

                  ShortWho performed the medication administration
                  Control1..1
                  This element is affected by the following invariants: inv-dh-mad-02
                  TypeReference(ADHA Authoring PractitionerRole, ADHA Authoring RelatedPerson, ADHA Core Patient)
                  Is Modifierfalse
                  Must Supporttrue
                  Must Support TypesNo must-support rules about the choice of types/profiles
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  84. MedicationAdministration.reasonCode
                  Definition

                  A code indicating why the medication was given.

                  ShortReason administration performed
                  Control0..*
                  BindingFor example codes, see ReasonMedicationGivenCodes
                  (example to http://hl7.org/fhir/ValueSet/reason-medication-given-codes)

                  A set of codes indicating the reason why the MedicationAdministration was made.

                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  86. MedicationAdministration.reasonReference
                  Definition

                  Condition or observation that supports why the medication was administered.

                  ShortCondition or observation that supports why the medication was administered
                  Comments

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

                  Control0..*
                  TypeReference(Condition, Observation, DiagnosticReport)
                  Is Modifierfalse
                  Must Supporttrue
                  Must Support TypesNo must-support rules about the choice of types/profiles
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  88. MedicationAdministration.request
                  Definition

                  The original request, instruction or authority to perform the administration.

                  ShortRequest administration performed against
                  Comments

                  This is a reference to the MedicationRequest where the intent is either order or instance-order. It should not reference MedicationRequests where the intent is any other value.

                  Control0..1
                  TypeReference(MedicationRequest)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  90. MedicationAdministration.device
                  Definition

                  The device used in administering the medication to the patient. For example, a particular infusion pump.

                  ShortDevice used to administer
                  Control0..*
                  TypeReference(Device)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  92. MedicationAdministration.note
                  Definition

                  Extra information about the medication administration that is not conveyed by the other attributes.

                  ShortInformation about the administration
                  Control0..*
                  TypeAnnotation
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  94. MedicationAdministration.dosage
                  Definition

                  Describes the medication dosage information details e.g. dose, rate, site, route, etc.

                  ShortDetails of how medication was taken
                  Control0..1
                  TypeBackboneElement
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  mad-1: SHALL have at least one of dosage.dose or dosage.rate[x] (dose.exists() or rate.exists())
                  96. MedicationAdministration.dosage.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
                  98. MedicationAdministration.dosage.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())
                  100. MedicationAdministration.dosage.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())
                  102. MedicationAdministration.dosage.text
                  Definition

                  Free text dosage can be used for cases where the dosage administered is too complex to code. When coded dosage is present, the free text dosage may still be present for display to humans.

                  The dosage instructions should reflect the dosage of the medication that was administered.

                  ShortFree text dosage instructions e.g. SIG
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  104. MedicationAdministration.dosage.site
                  Definition

                  A coded specification of the anatomic site where the medication first entered the body. For example, "left arm".

                  ShortBody site administered to
                  Comments

                  If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

                  Control0..1
                  BindingThe codes SHOULD be taken from Body Site .
                  (preferred to https://healthterminologies.gov.au/fhir/ValueSet/body-site-1)
                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  106. MedicationAdministration.dosage.route
                  Definition

                  A code specifying the route or physiological path of administration of a therapeutic agent into or onto the patient. For example, topical, intravenous, etc.

                  ShortPath of substance into body
                  Control0..1
                  BindingThe codes SHOULD be taken from Route of Administration .
                  (preferred to https://healthterminologies.gov.au/fhir/ValueSet/route-of-administration-1)
                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  108. MedicationAdministration.dosage.method
                  Definition

                  A coded value indicating the method by which the medication is intended to be or was introduced into or on the body. This attribute will most often NOT be populated. It is most commonly used for injections. For example, Slow Push, Deep IV.

                  ShortHow drug was administered
                  Comments

                  One of the reasons this attribute is not used often, is that the method is often pre-coordinated with the route and/or form of administration. This means the codes used in route or form may pre-coordinate the method in the route code or the form code. The implementation decision about what coding system to use for route or form code will determine how frequently the method code will be populated e.g. if route or form code pre-coordinate method code, then this attribute will not be populated often; if there is no pre-coordination then method code may be used frequently.

                  Control0..1
                  BindingThe codes SHOULD be taken from SNOMEDCTAdministrationMethodCodes
                  (preferred to http://hl7.org/fhir/ValueSet/administration-method-codes)
                  TypeCodeableConcept
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  110. MedicationAdministration.dosage.dose
                  Definition

                  The amount of the medication given at one administration event. Use this value when the administration is essentially an instantaneous event such as a swallowing a tablet or giving an injection.

                  ShortAmount of medication per dose
                  Comments

                  If the administration is not instantaneous (rate is present), this can be specified to convey the total amount administered over period of time of a single administration.

                  Control0..1
                  TypeQuantity(SimpleQuantity)
                  Is Modifierfalse
                  Must Supporttrue
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  112. MedicationAdministration.dosage.rate[x]
                  Definition

                  Identifies the speed with which the medication was or will be introduced into the patient. Typically, the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time, e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours.

                  ShortDose quantity per unit of time
                  Comments

                  If the rate changes over time, and you want to capture this in MedicationAdministration, then each change should be captured as a distinct MedicationAdministration, with a specific MedicationAdministration.dosage.rate, and the date time when the rate change occurred. Typically, the MedicationAdministration.dosage.rate element is not used to convey an average rate.

                  Control0..1
                  TypeChoice of: Ratio, Quantity(SimpleQuantity)
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  Is Modifierfalse
                  Must Supporttrue
                  Must Support TypesNo must-support rules about the choice of types/profiles
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  114. MedicationAdministration.eventHistory
                  Definition

                  A summary of the events of interest that have occurred, such as when the administration was verified.

                  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()))