StructureDefinition: DAF-MedicationStatement - XML

DAF-MedicationStatement

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="daf-medicationstatement"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml">to do</div>
  </text>
  <url value="http://hl7.org/fhir/StructureDefinition/daf-medicationstatement"/>
  <name value="U.S. Data Access Framework (DAF) MedicationStatement Profile"/>
  <display value="DAF-MedicationStatement"/>
  <status value="draft"/>
  <publisher value="Health Level Seven International (Infrastructure and Messaging - Data Access Framework)"/>
  <contact>
    <telecom>
      <system value="other"/>
      <value value="http://www.healthit.gov"/>
    </telecom>
  </contact>
  <date value="2014-08-21"/>
  <description value="Defines constraints and extensions on the MedicationStatement resource for use in querying
   and retrieving patient's medication information."/>
  <fhirVersion value="1.0.2"/>
  <kind value="resource"/>
  <constrainedType value="MedicationStatement"/>
  <abstract value="false"/>
  <base value="http://hl7.org/fhir/StructureDefinition/MedicationStatement"/>
  <snapshot>
    <element>
      <path value="MedicationStatement"/>
      <name value="DAF-MedicationStatement"/>
      <short value="Record of medication being taken by a patient"/>
      <definition value="Statement that a medication is/was actively taken by a patient."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="MedicationStatement"/>
      </type>
      <constraint>
        <key value="mst-2"/>
        <severity value="error"/>
        <human value="Reason for use is only permitted if wasNotTaken is false"/>
        <xpath value="not(exists(*[starts-with(local-name(.), 'reasonForUse')]) and f:wasNotTaken/@value=true())"/>
      </constraint>
      <constraint>
        <key value="mst-1"/>
        <severity value="error"/>
        <human value="Reason not taken is only permitted if wasNotTaken is true"/>
        <xpath value="not(exists(f:reasonNotTaken) and f:wasNotTaken/@value=false())"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="clinical.medication"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.id"/>
      <short value="Logical id of this artifact"/>
      <definition value="The logical id of the resource, as used in the URL for the resource. Once assigned, this
       value never changes."/>
      <comments value="The only time that a resource does not have an id is when it is being submitted to the
       server using a create operation. Bundles always have an id, though it is usually a generated
       UUID."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.meta"/>
      <short value="Metadata about the resource"/>
      <definition value="The metadata about the resource. This is content that is maintained by the infrastructure.
       Changes to the content may not always be associated with version changes to the resource."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.meta"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Meta"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.implicitRules"/>
      <short value="A set of rules under which this content was created"/>
      <definition value="A reference to a set of rules that were followed when the resource was constructed, and
       which must be understood when processing the content."/>
      <comments value="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 as much as possible."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.implicitRules"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.language"/>
      <short value="Language of the resource content"/>
      <definition value="The base language in which the resource is written."/>
      <comments value="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)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.language"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <strength value="required"/>
        <description value="A human language."/>
        <valueSetUri value="http://tools.ietf.org/html/bcp47"/>
      </binding>
    </element>
    <element>
      <path value="MedicationStatement.text"/>
      <short value="Text summary of the resource, for human interpretation"/>
      <definition value="A human-readable narrative that contains a summary of the resource, and may 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 &quot;clinically
       safe&quot; for a human to just read the narrative. Resource definitions may define what
       content should be represented in the narrative to ensure clinical safety."/>
      <comments value="Contained resources do not have narrative. Resources that are not contained SHOULD have
       a narrative."/>
      <alias value="narrative"/>
      <alias value="html"/>
      <alias value="xhtml"/>
      <alias value="display"/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Narrative"/>
      </type>
      <condition value="dom-1"/>
      <mapping>
        <identity value="rim"/>
        <map value="Act.text?"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.contained"/>
      <short value="Contained, inline Resources"/>
      <definition value="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."/>
      <comments value="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."/>
      <alias value="inline resources"/>
      <alias value="anonymous resources"/>
      <alias value="contained resources"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.contained"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Resource"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the resource. In order 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."/>
      <comments value="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."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition value="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.
       Usually modifier elements provide negation or qualification. In order 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."/>
      <comments value="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."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <isModifier value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.identifier"/>
      <short value="External identifier"/>
      <definition value="External identifier - FHIR will generate its own internal identifiers (probably URLs)
       which do not need to be explicitly managed by the resource.  The identifier here is one
       that would be used by another non-FHIR system - for example an automated medication pump
       would provide a record each time it operated; an administration while the patient was
       off the ward might be made with a different system and entered after the event.  Particularly
       important if these records have to be updated."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.identifier"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Identifier"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration.id"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="id"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.patient"/>
      <short value="Who is/was taking  the medication"/>
      <definition value="The person or animal who is/was taking the medication."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.patient"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-patient"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="PID-3-Patient ID List"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration-&gt;subject-&gt;Patient"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="who.focus"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.informationSource"/>
      <definition value="The person who provided the information about the taking of this medication."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.informationSource"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-pract"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-patient"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-relatedperson"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="w5"/>
        <map value="who.source"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dateAsserted"/>
      <short value="When the statement was asserted?"/>
      <definition value="The date when the medication statement was asserted by the information source."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dateAsserted"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="dateTime"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.status"/>
      <short value="active | completed | entered-in-error | intended"/>
      <definition value="A code representing the patient or other source's judgment about the state of the medication
       used that this statement is about.  Generally this will be active or completed."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.status"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <binding>
        <strength value="required"/>
        <description value="A set of codes indicating the current status of a MedicationStatement."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/medication-statement-status"/>
        </valueSetReference>
      </binding>
    </element>
    <element>
      <path value="MedicationStatement.wasNotTaken"/>
      <short value="True if medication is/was not being taken"/>
      <definition value="Set this to true if the record is saying that the medication was NOT taken."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.wasNotTaken"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
      </type>
      <meaningWhenMissing value="If this is missing, then the medication was taken"/>
      <mustSupport value="true"/>
      <isModifier value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration.actionNegationInd"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="status"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.reasonNotTaken"/>
      <short value="True if asserting medication was not given"/>
      <definition value="A code indicating why the medication was not taken."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.reasonNotTaken"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <condition value="mst-1"/>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <binding>
        <strength value="example"/>
        <description value="A set of codes indicating the reason why the MedicationAdministration is negated."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/reason-medication-not-given-codes"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration-&gt;Reason-&gt;Observation-&gt;Value"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.reasonForUse[x]"/>
      <definition value="A reason for why the medication is being/was taken."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.reasonForUse[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/Condition"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="example"/>
        <description value="Codes identifying why the medication is being taken."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/condition-code"/>
        </valueSetReference>
      </binding>
    </element>
    <element>
      <path value="MedicationStatement.effectivePeriod"/>
      <short value="Over what period was medication consumed?"/>
      <definition value="The interval of time during which it is being asserted that the patient was taking the
       medication (or was not taking, when the wasNotGiven element is true)."/>
      <comments value="If the medication is still being taken at the time the statement is recorded, the &quot;end&quot;
       date will be omitted."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.effective[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Period"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration.effectiveTime"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="when.done"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.note"/>
      <short value="Further information about the statement"/>
      <definition value="Provides extra information about the medication statement that is not conveyed by the
       other attributes."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.note"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.supportingInformation"/>
      <short value="Additional supporting information"/>
      <definition value="Allows linking the MedicationStatement to the underlying MedicationOrder, or to other
       information that supports the MedicationStatement."/>
      <comments value="Likely references would be to MedicationOrder, MedicationDispense, Claim, Observation
       or QuestionnaireAnswers."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.supportingInformation"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/Resource"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.medication[x]"/>
      <short value="What medication was taken"/>
      <definition value="Identifies the medication being 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."/>
      <comments value="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.  Note:
       do not use Medication.name to describe the medication this statement concerns. When the
       only available information is a text description of the medication, Medication.code.text
       should be used."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.medication[x]"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/Medication"/>
      </type>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration&gt;Component&gt;SubstanceAdministrationRequest.consumable"/>
      </mapping>
      <mapping>
        <identity value="w5"/>
        <map value="what"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage"/>
      <short value="Details of how medication was taken"/>
      <definition value="Indicates how the medication is/was used by the patient."/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.dosage"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="BackboneElement"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="SubstanceAdministration&gt;Component&gt;SubstanceAdministrationRequest"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.extension"/>
      <short value="Additional Content defined by implementations"/>
      <definition value="May be used to represent additional information that is not part of the basic definition
       of the element. In order 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."/>
      <comments value="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."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.dosage.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.modifierExtension"/>
      <short value="Extensions that cannot be ignored"/>
      <definition value="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 that contains it. Usually
       modifier elements provide negation or qualification. In order 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."/>
      <comments value="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."/>
      <alias value="extensions"/>
      <alias value="user content"/>
      <alias value="modifiers"/>
      <min value="0"/>
      <max value="*"/>
      <base>
        <path value="MedicationStatement.dosage.modifierExtension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <isModifier value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.text"/>
      <short value="Reported dosage information"/>
      <definition value="Free text dosage information as reported about a patient's medication use. When coded
       dosage information is present, the free text may still be present for display to humans."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.text"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <isSummary value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.dosage.timing"/>
      <short value="When/how often was medication taken"/>
      <definition value="The timing schedule for giving the medication to the patient.  The Schedule data type
       allows many different expressions, for example.  &quot;Every  8 hours&quot;; &quot;Three
       times a day&quot;; &quot;1/2 an hour before breakfast for 10 days from 23-Dec 2011:&quot;;
        &quot;15 Oct 2013, 17 Oct 2013 and 1 Nov 2013&quot;."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.timing"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Timing"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value=".effectiveTime"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.asNeeded[x]"/>
      <short value="Take &quot;as needed&quot; (for x)"/>
      <definition value="Indicates whether the Medication is only taken when needed within a specific dosing schedule
       (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept).
          Specifically if 'boolean' datatype is selected, then the following logic applies: 
       If set to True, this indicates that the medication is only taken when needed, within the
       specified schedule."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.asNeeded[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="boolean"/>
      </type>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="example"/>
        <description value="A coded concept identifying the precondition that should be met or evaluated prior to
         consuming or administering a medication dose.  For example &quot;pain&quot;, &quot;30
         minutes prior to sexual intercourse&quot;, &quot;on flare-up&quot; etc."/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="boolean: .outboundRelationship[typeCode=PRCN].negationInd (inversed - so negationInd =
         true means asNeeded=false  CodeableConcept: .outboundRelationship[typCode=PRCN].target[classCode=OBS
        , moodCode=EVN, isCriterionInd=true, code=&quot;Assertion&quot;].value"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.siteCodeableConcept"/>
      <short value="Where (on body) medication is/was administered"/>
      <definition value="A coded specification of or a reference to the anatomic site where the medication first
       enters the body."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.site[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <binding>
        <strength value="preferred"/>
        <description value="This identifies the body site at which the substance was administered"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/daf-bodysite"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value=".approachSiteCode"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.route"/>
      <short value="How the medication entered the body"/>
      <definition value="A code specifying the route or physiological path of administration of a therapeutic agent
       into or onto a subject."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.route"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <binding>
        <strength value="preferred"/>
        <description value="This identifies the route of substance administration."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/daf-medication-route"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value=".routeCode"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.method"/>
      <short value="Technique used to administer medication"/>
      <definition value="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."/>
      <comments value="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."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.method"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <isSummary value="true"/>
      <binding>
        <strength value="example"/>
        <description value="A coded concept describing the technique by which the medicine is administered."/>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value=".methodCode"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.quantity[x]"/>
      <short value="Amount administered in one dose"/>
      <definition value="The amount of therapeutic or other substance given at one administration event."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.quantity[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Quantity"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value=".doseQuantity"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.rate[x]"/>
      <short value="Dose quantity per unit of time"/>
      <definition value="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.   Currently we do not specify a default
       of '1' in the denominator, but this is being discussed. Other examples: 200 mcg/min or
       200 mcg/1 minute; 1 liter/8 hours."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.rate[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Ratio"/>
      </type>
      <type>
        <code value="Range"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value=".rateQuantity"/>
      </mapping>
    </element>
    <element>
      <path value="MedicationStatement.dosage.maxDosePerPeriod"/>
      <short value="Maximum dose that was consumed per unit of time"/>
      <definition value="The maximum total quantity of a therapeutic substance that may be administered to a subject
       over the period of time.  For example, 1000mg in 24 hours."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="MedicationStatement.dosage.maxDosePerPeriod"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Ratio"/>
      </type>
      <mustSupport value="true"/>
      <isSummary value="true"/>
      <mapping>
        <identity value="rim"/>
        <map value=".maxDoseQuantity"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element>
      <path value="MedicationStatement"/>
      <name value="DAF-MedicationStatement"/>
      <definition value="Statement that a medication is/was actively taken by a patient."/>
      <min value="0"/>
      <max value="*"/>
      <type>
        <code value="MedicationStatement"/>
      </type>
    </element>
    <element>
      <path value="MedicationStatement.identifier"/>
      <min value="0"/>
      <max value="*"/>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.patient"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-patient"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.informationSource"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-pract"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-patient"/>
      </type>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-relatedperson"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.wasNotTaken"/>
      <min value="0"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.reasonNotTaken"/>
      <min value="0"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.effectivePeriod"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Period"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.medication"/>
      <min value="1"/>
      <max value="1"/>
      <type>
        <code value="Reference"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/daf-medication"/>
      </type>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.dosage"/>
      <min value="0"/>
      <max value="*"/>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.dosage.timing"/>
      <min value="0"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.dosage.siteCodeableConcept"/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="CodeableConcept"/>
      </type>
      <mustSupport value="true"/>
      <binding>
        <strength value="preferred"/>
        <description value="This identifies the body site at which the substance was administered"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/daf-bodysite"/>
        </valueSetReference>
      </binding>
    </element>
    <element>
      <path value="MedicationStatement.dosage.route"/>
      <min value="0"/>
      <max value="1"/>
      <mustSupport value="true"/>
      <binding>
        <strength value="preferred"/>
        <description value="This identifies the route of substance administration."/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/daf-medication-route"/>
        </valueSetReference>
      </binding>
    </element>
    <element>
      <path value="MedicationStatement.dosage.quantity[x]"/>
      <min value="0"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.dosage.rate[x]"/>
      <min value="0"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
    <element>
      <path value="MedicationStatement.dosage.maxDosePerPeriod"/>
      <min value="0"/>
      <max value="1"/>
      <mustSupport value="true"/>
    </element>
  </differential>
</StructureDefinition>