R6 Ballot (1st Draft)

This page is part of the FHIR Specification v6.0.0-ballot1: Release 6 Ballot (1st Draft) (see Ballot Notes). The current version is 5.0.0. For a full list of available versions, see the Directory of published versions

StructureDefinition: PublishableActivityDefinition - XML

Clinical Decision Support Work Group Maturity Level: 0Trial UseUse Context: Any

PublishableActivityDefinition

<?xml version="1.0" encoding="UTF-8"?>

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="publishableactivitydefinition"/> 
  <text> 
    <status value="generated"/> 
    <div xmlns="http://www.w3.org/1999/xhtml">to do</div> 
  </text> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="3"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cds"/> 
  </extension> 
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="trial-use"/> 
  </extension> 
  <url value="http://hl7.org/fhir/StructureDefinition/publishableactivitydefinition"/> 
  <version value="6.0.0-ballot1"/> 
  <name value="PublishableActivityDefinition"/> 
  <title value="Publishable ActivityDefinition"/> 
  <status value="draft"/> 
  <experimental value="false"/> 
  <date value="2020-12-28T16:55:11+11:00"/> 
  <publisher value="HL7 International / Clinical Decision Support"/> 
  <contact> 
    <telecom> 
      <system value="url"/> 
      <value value="http://www.hl7.org/Special/committees/dss"/> 
    </telecom> 
  </contact> 
  <description value="Supports declaration of the ActivityDefinition metadata required by HL7 and other
   organizations that share and publish activity definitions with a focus on the aspects
   of that metadata that are important for post-publication activities including distribution,
   inclusion in repositories, consumption, and implementation."/> 
  <fhirVersion value="6.0.0-ballot1"/> 
  <mapping> 
    <identity value="rim"/> 
    <uri value="http://hl7.org/v3"/> 
    <name value="RIM Mapping"/> 
  </mapping> 
  <mapping> 
    <identity value="workflow"/> 
    <uri value="http://hl7.org/fhir/workflow"/> 
    <name value="Workflow Pattern"/> 
  </mapping> 
  <mapping> 
    <identity value="w5"/> 
    <uri value="http://hl7.org/fhir/fivews"/> 
    <name value="FiveWs Pattern Mapping"/> 
  </mapping> 
  <mapping> 
    <identity value="objimpl"/> 
    <uri value="http://hl7.org/fhir/object-implementation"/> 
    <name value="Object Implementation Information"/> 
  </mapping> 
  <kind value="resource"/> 
  <abstract value="false"/> 
  <type value="ActivityDefinition"/> 
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/shareableactivitydefinition"/> 
  <derivation value="constraint"/> 
  <snapshot> 
    <element id="ActivityDefinition">
      <path value="ActivityDefinition"/> 
      <short value="The definition of a specific activity to be taken, independent of any particular
       patient or context"/> 
      <definition value="This resource allows for the definition of some activity to be performed, independent
       of a particular patient, practitioner, or other performance context."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <constraint> 
        <key value="cnl-0"/> 
        <severity value="warning"/> 
        <human value="Name should be usable as an identifier for the module by machine processing applications
         such as code generation"/> 
        <expression value="name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/ActivityDefinition"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="w5"/> 
        <map value="conformance.behavior,clinical.general"/> 
      </mapping> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="Act[classCode=ACT; moodCode=DEFN]"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.id">
      <path value="ActivityDefinition.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."/> 
      <comment value="Within the context of the FHIR RESTful interactions, the resource has an id except
       for cases like the create and conditional update. Otherwise, the use of the resouce
       id depends on the given use case."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="Resource.id"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="id"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.meta">
      <path value="ActivityDefinition.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 might not always be associated with version changes to the
       resource."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="Resource.meta"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Meta"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.implicitRules">
      <path value="ActivityDefinition.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. Often, this is a reference
       to an implementation guide that defines the special rules along with other profiles
       etc."/> 
      <comment 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. Often, when used, the URL is a reference to an implementation guide
       that defines these special rules as part of its narrative along with other profiles,
       value sets, etc."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="Resource.implicitRules"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="uri"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="true"/> 
      <isModifierReason value="This element is labeled as a modifier because the implicit rules may provide additional
       knowledge about the resource that modifies its meaning or interpretation"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.language">
      <path value="ActivityDefinition.language"/> 
      <short value="Language of the resource content"/> 
      <definition value="The base language in which the resource is written."/> 
      <comment 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="Resource.language"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Language"/> 
        </extension> 
        <strength value="required"/> 
        <description value="IETF language tag for a human language"/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/all-languages|6.0.0-ballot1"/> 
        <additional> 
          <purpose value="starter"/> 
          <valueSet value="http://hl7.org/fhir/ValueSet/languages"/> 
        </additional> 
      </binding> 
    </element> 
    <element id="ActivityDefinition.text">
      <path value="ActivityDefinition.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 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
       &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."/> 
      <comment value="Contained resources do not have a 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 &quot;text blob&quot; or where text is additionally entered raw or narrated
       and encoded information is added later."/> 
      <alias value="narrative"/> 
      <alias value="html"/> 
      <alias value="xhtml"/> 
      <alias value="display"/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="DomainResource.text"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Narrative"/> 
      </type> 
      <condition value="dom-6"/> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="Act.text?"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.contained">
      <path value="ActivityDefinition.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, nor can they have their
       own independent transaction scope. This is allowed to be a Parameters resource
       if and only if it is referenced by a resource that provides context/meaning."/> 
      <comment 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. Contained resources may have profiles and tags in their meta elements,
       but SHALL NOT have security labels."/> 
      <alias value="inline resources"/> 
      <alias value="anonymous resources"/> 
      <alias value="contained resources"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="DomainResource.contained"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Resource"/> 
      </type> 
      <condition value="dom-2"/> 
      <condition value="dom-4"/> 
      <condition value="dom-3"/> 
      <condition value="dom-5"/> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.extension">
      <path value="ActivityDefinition.extension"/> 
      <slicing> 
        <discriminator> 
          <type value="value"/> 
          <path value="url"/> 
        </discriminator> 
        <ordered value="false"/> 
        <rules value="open"/> 
      </slicing> 
      <short value="Extension"/> 
      <definition value="An Extension"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="DomainResource.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
    </element> 
    <element id="ActivityDefinition.extension:knowledgeCapability">
      <path value="ActivityDefinition.extension"/> 
      <sliceName value="knowledgeCapability"/> 
      <short value="shareable | computable | publishable | executable"/> 
      <definition value="Defines a knowledge capability afforded by this knowledge artifact."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="DomainResource.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
        <profile value="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeCapability"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <constraint> 
        <key value="ext-1"/> 
        <severity value="error"/> 
        <human value="Must have either extensions or value[x], not both"/> 
        <expression value="extension.exists() != value.exists()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
    </element> 
    <element id="ActivityDefinition.extension:knowledgeRepresentationLevel">
      <path value="ActivityDefinition.extension"/> 
      <sliceName value="knowledgeRepresentationLevel"/> 
      <short value="narrative | semi-structured | structured | executable"/> 
      <definition value="Defines a knowledge representation level provided by this knowledge artifact."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="DomainResource.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
        <profile value="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <constraint> 
        <key value="ext-1"/> 
        <severity value="error"/> 
        <human value="Must have either extensions or value[x], not both"/> 
        <expression value="extension.exists() != value.exists()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
    </element> 
    <element id="ActivityDefinition.extension:artifactComment">
      <path value="ActivityDefinition.extension"/> 
      <sliceName value="artifactComment"/> 
      <short value="Additional documentation, review, or usage guidance"/> 
      <definition value="A comment containing additional documentation, a review comment, usage guidance,
       or other relevant information from a particular user."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="DomainResource.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
        <profile value="http://hl7.org/fhir/StructureDefinition/cqf-artifactComment"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <constraint> 
        <key value="ext-1"/> 
        <severity value="error"/> 
        <human value="Must have either extensions or value[x], not both"/> 
        <expression value="extension.exists() != value.exists()"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
    </element> 
    <element id="ActivityDefinition.modifierExtension">
      <path value="ActivityDefinition.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 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 managable, 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)."/> 
      <comment 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."/> 
      <requirements value="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](extensibility.html#modifierExtension)."/> 
      <alias value="extensions"/> 
      <alias value="user content"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="DomainResource.modifierExtension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="true"/> 
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
       resource that contains them"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.url">
      <path value="ActivityDefinition.url"/> 
      <short value="Canonical identifier for this activity definition, represented as a URI (globally
       unique)"/> 
      <definition value="An absolute URI that is used to identify this activity definition when it is referenced
       in a specification, model, design or an instance; also called its canonical identifier.
       This SHOULD be globally unique and SHOULD be a literal address at which an authoritative
       instance of this activity definition is (or will be) published. This URL can be
       the target of a canonical reference. It SHALL remain the same when the activity
       definition is stored on different servers."/> 
      <comment value="Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred.  Multiple
       instances may share the same URL if they have a distinct version.

The determination of when to create a new version of a resource (same url, new
       version) vs. defining a new artifact is up to the author.  Considerations for making
       this decision are found in [Technical and Business Versions](resource.html#versions).
       

In some cases, the resource can no longer be found at the stated url, but the url
       itself cannot change. Implementations can use the [meta.source](resource.html#meta)
       element to indicate where the current master source of the resource can be found."/> 
      <requirements value="Allows the activity definition to be referenced by a single globally unique identifier."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.url"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="uri"/> 
      </type> 
      <constraint> 
        <key value="cnl-1"/> 
        <severity value="warning"/> 
        <human value="URL should not contain | or # - these characters make processing canonical references
         problematic"/> 
        <expression value="exists() implies matches('^[^|# ]+$')"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/ActivityDefinition"/> 
      </constraint> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.url"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.identifier"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".identifier[scope=BUSN;reliability=ISS]"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.identifier">
      <path value="ActivityDefinition.identifier"/> 
      <short value="Additional identifier for the activity definition"/> 
      <definition value="A formal identifier that is used to identify this activity definition when it is
       represented in other formats, or referenced in a specification, model, design or
       an instance."/> 
      <comment value="Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier)
       data type, and can then identify this activity definition outside of FHIR, where
       it is not possible to use the logical URI."/> 
      <requirements value="Allows externally provided and/or usable business identifiers to be easily associated
       with the module."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.identifier"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Identifier"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.identifier"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.identifier"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".identifier"/> 
      </mapping> 
      <mapping> 
        <identity value="objimpl"/> 
        <map value="no-gen-base"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.version">
      <path value="ActivityDefinition.version"/> 
      <short value="Business version of the activity definition"/> 
      <definition value="The identifier that is used to identify this version of the activity definition
       when it is referenced in a specification, model, design or instance. This is an
       arbitrary value managed by the activity definition author and is not expected to
       be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed
       version is not available. There is also no expectation that versions can be placed
       in a lexicographical sequence. To provide a version consistent with the Decision
       Support Service specification, use the format Major.Minor.Revision (e.g. 1.0.0).
       For more information on versioning knowledge assets, refer to the Decision Support
       Service specification. Note that a version is required for non-experimental active
       assets."/> 
      <comment value="There may be different activity definition instances that have the same identifier
       but different versions.  The version can be appended to the url in a reference
       to allow a reference to a particular business version of the activity definition
       with the format [url]|[version]. The version SHOULD NOT contain a '#' - see [Business
       Version](resource.html#bv-format)."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.version"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.version"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.version"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.versionAlgorithm[x]">
      <path value="ActivityDefinition.versionAlgorithm[x]"/> 
      <short value="How to compare versions"/> 
      <definition value="Indicates the mechanism used to compare versions to determine which is more current."/> 
      <comment value="If set as a string, this is a FHIRPath expression that has two additional context
       variables passed in - %version1 and %version2 and will return a negative number
       if version1 is newer, a positive number if version2 and a 0 if the version ordering
       can't be successfully be determined."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.versionAlgorithm[x]"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <type> 
        <code value="Coding"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <strength value="extensible"/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/version-algorithm"/> 
      </binding> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.versionAlgorithm"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.version"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.name">
      <path value="ActivityDefinition.name"/> 
      <short value="Name for this activity definition (computer friendly)"/> 
      <definition value="A natural language name identifying the activity definition. This name should be
       usable as an identifier for the module by machine processing applications such
       as code generation."/> 
      <comment value="The name is not expected to be globally unique. The name should be a simple alphanumeric
       type name to ensure that it is machine-processing friendly."/> 
      <requirements value="Support human navigation and code generation."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.name"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <condition value="cnl-0"/> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.name"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.title">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.title"/> 
      <short value="Name for this activity definition (human friendly)"/> 
      <definition value="A short, descriptive, user-friendly title for the activity definition."/> 
      <comment value="This name does not need to be machine-processing friendly and may contain punctuation,
       white-space, etc."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.title"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.title"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".title"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.subtitle">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.subtitle"/> 
      <short value="Subordinate title of the activity definition"/> 
      <definition value="An explanatory or alternate title for the activity definition giving additional
       information about its content."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.subtitle"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.status">
      <path value="ActivityDefinition.status"/> 
      <short value="draft | active | retired | unknown"/> 
      <definition value="The status of this activity definition. Enables tracking the life-cycle of the
       content."/> 
      <comment value="Allows filtering of activity definitions that are appropriate for use versus not.

See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.status"/> 
        <min value="1"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="true"/> 
      <isModifierReason value="This is labeled as &quot;Is Modifier&quot; because applications should not use
       a retired {{title}} without due consideration"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="PublicationStatus"/> 
        </extension> 
        <strength value="required"/> 
        <description value="The lifecycle status of an artifact."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/publication-status|6.0.0-ballot1"/> 
      </binding> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.status {different ValueSet}"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.status"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".status"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.experimental">
      <path value="ActivityDefinition.experimental"/> 
      <short value="For testing purposes, not real usage"/> 
      <definition value="A Boolean value to indicate that this activity definition is authored for testing
       purposes (or education/evaluation/marketing) and is not intended to be used for
       genuine usage."/> 
      <comment value="Allows filtering of activity definitions that are appropriate for use versus not."/> 
      <requirements value="Enables experimental content to be developed following the same lifecycle that
       would be used for a production-level activity definition."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.experimental"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="boolean"/> 
      </type> 
      <meaningWhenMissing value="If absent, this resource is treated as though it is not experimental."/> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.experimental"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.class"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.subject[x]">
      <path value="ActivityDefinition.subject[x]"/> 
      <short value="Type of individual the activity definition is intended for"/> 
      <definition value="A code, group definition, or canonical reference that describes  or identifies
       the intended subject of the activity being defined.  Canonical references are allowed
       to support the definition of protocols for drug and substance quality specifications,
       and is allowed to reference a MedicinalProductDefinition, SubstanceDefinition,
       AdministrableProductDefinition, ManufacturedItemDefinition, or PackagedProductDefinition
       resource."/> 
      <comment value="Note that the choice of canonical for the subject element was introduced in R4B
       to support pharmaceutical quality use cases. To ensure as much backwards-compatibility
       as possible, it is recommended to only use the new canonical type with these use
       cases."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.subject[x]"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <type> 
        <code value="Reference"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/MedicinalProductDefinition"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/SubstanceDefinition"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/AdministrableProductDefinition"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/ManufacturedItemDefinition"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/PackagedProductDefinition"/> 
      </type> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/EvidenceVariable"/> 
      </type> 
      <meaningWhenMissing value="Patient"/> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="SubjectType"/> 
        </extension> 
        <strength value="extensible"/> 
        <description value="The possible types of subjects for an activity (E.g. Patient, Practitioner, Organization,
         Location, etc.)."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/participant-resource-types"/> 
      </binding> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.subject"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?) { only applies for subject Patient? }"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.date">
      <path value="ActivityDefinition.date"/> 
      <short value="Date last changed"/> 
      <definition value="The date  (and optionally time) when the activity definition was last significantly
       changed. The date must change when the business version changes and it must change
       if the status code changes. In addition, it should change when the substantive
       content of the activity definition changes."/> 
      <comment value="The date is often not tracked until the resource is published, but may be present
       on draft content. Note that this is not the same as the resource last-modified-date,
       since the resource may be a secondary representation of the activity definition.
       Additional specific dates may be added as extensions or be found by consulting
       Provenances associated with past versions of the resource.

See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <alias value="Revision Date"/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.date"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="dateTime"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.date"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.recorded"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=AUT].time"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.publisher">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.publisher"/> 
      <short value="Name of the publisher/steward (organization or individual)"/> 
      <definition value="The name of the organization or individual responsible for the release and ongoing
       maintenance of the activity definition."/> 
      <comment value="Usually an organization but may be an individual. The publisher (or steward) of
       the activity definition is the organization or individual primarily responsible
       for the maintenance and upkeep of the activity definition. This is not necessarily
       the same individual or organization that developed and initially authored the content.
       The publisher is the primary point of contact for questions or issues with the
       activity definition. This item SHOULD be populated unless the information is available
       from context."/> 
      <requirements value="Helps establish the &quot;authority/credibility&quot; of the activity definition.
        May also allow for contact."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.publisher"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.publisher {as string instead of CodeableConcept}"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.witness"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=AUT].role"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.contact">
      <path value="ActivityDefinition.contact"/> 
      <short value="Contact details for the publisher"/> 
      <definition value="Contact details to assist a user in finding and communicating with the publisher."/> 
      <comment value="May be a web site, an email address, a telephone number, etc.

See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.contact"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="ContactDetail"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.contact"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=CALLBCK].role"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.description">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.description"/> 
      <short value="Natural language description of the activity definition"/> 
      <definition value="A free text natural language description of the activity definition from a consumer's
       perspective."/> 
      <comment value="This description can be used to capture details such as comments about misuse,
       instructions for clinical use and interpretation, literature references, examples
       from the paper world, etc. It is not a rendering of the activity definition as
       conveyed in the 'text' field of the resource itself. This item SHOULD be populated
       unless the information is available from context (e.g. the language of the activity
       definition is presumed to be the predominant language in the place the activity
       definition was created)."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.description"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="markdown"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.description"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".text"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.useContext">
      <path value="ActivityDefinition.useContext"/> 
      <short value="The context that the content is intended to support"/> 
      <definition value="The content was developed with a focus and intent of supporting the contexts that
       are listed. These contexts may be general categories (gender, age, ...) or may
       be references to specific programs (insurance plans, studies, ...) and may be used
       to assist with indexing and searching for appropriate activity definition instances."/> 
      <comment value="When multiple useContexts are specified, there is no expectation that all or any
       of the contexts apply."/> 
      <requirements value="Assist in searching for appropriate content."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.useContext"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="UsageContext"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.useContext"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.jurisdiction">
      <path value="ActivityDefinition.jurisdiction"/> 
      <short value="Intended jurisdiction for activity definition (if applicable)"/> 
      <definition value="A legal or geographic region in which the activity definition is intended to be
       used."/> 
      <comment value="It may be possible for the activity definition to be used in jurisdictions other
       than those for which it was originally designed or intended.

DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to
       using the new 'jurisdiction' code in the useContext element.  (I.e. useContext.code
       indicating http://terminology.hl7.org/CodeSystem/usage-context-type#jurisdiction
       and useContext.valueCodeableConcept indicating the jurisdiction.)"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.jurisdiction"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="Jurisdiction"/> 
        </extension> 
        <strength value="extensible"/> 
        <description value="Countries and regions within which this artifact is targeted for use."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/jurisdiction"/> 
      </binding> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.jurisdiction"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.purpose">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.purpose"/> 
      <short value="Why this activity definition is defined"/> 
      <definition value="Explanation of why this activity definition is needed and why it has been designed
       as it has."/> 
      <comment value="This element does not describe the usage of the activity definition. Instead, it
       provides traceability of ''why'' the resource is either needed or ''why'' it is
       defined as it is.  This may be used to point to source materials or specifications
       that drove the structure of this activity definition."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.purpose"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="markdown"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.purpose"/> 
      </mapping> 
      <mapping> 
        <identity value="w5"/> 
        <map value="FiveWs.why[x]"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".reasonCode.text"/> 
      </mapping> 
      <mapping> 
        <identity value="objimpl"/> 
        <map value="no-gen-base"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.usage">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.usage"/> 
      <short value="Describes the clinical usage of the activity definition"/> 
      <definition value="A detailed description of how the activity definition is used from a clinical perspective."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.usage"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="markdown"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.copyright">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.copyright"/> 
      <short value="Use and/or publishing restrictions"/> 
      <definition value="A copyright statement relating to the activity definition and/or its contents.
       Copyright statements are generally legal restrictions on the use and publishing
       of the activity definition."/> 
      <comment value="The short copyright declaration (e.g. (c) '2015+ xyz organization' should be sent
       in the copyrightLabel element."/> 
      <requirements value="Consumers must be able to determine any legal restrictions on the use of the activity
       definition and/or its content."/> 
      <alias value="License"/> 
      <alias value="Restrictions"/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.copyright"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="markdown"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.copyright"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
      <mapping> 
        <identity value="objimpl"/> 
        <map value="no-gen-base"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.copyrightLabel">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true"/> 
      </extension> 
      <path value="ActivityDefinition.copyrightLabel"/> 
      <short value="Copyright holder and year(s)"/> 
      <definition value="A short string (&lt;50 characters), suitable for inclusion in a page footer that
       identifies the copyright holder, effective period, and optionally whether rights
       are resctricted. (e.g. 'All rights reserved', 'Some rights reserved')."/> 
      <comment value="The (c) symbol should NOT be included in this string. It will be added by software
       when rendering the notation. Full details about licensing, restrictions, warrantees,
       etc. goes in the more general 'copyright' element."/> 
      <requirements value="Defines the content expected to be rendered in all representations of the artifact."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.copyrightLabel"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.copyrightLabel"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
      <mapping> 
        <identity value="objimpl"/> 
        <map value="no-gen-base"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.approvalDate">
      <path value="ActivityDefinition.approvalDate"/> 
      <short value="When the activity definition was approved by publisher"/> 
      <definition value="The date on which the resource content was approved by the publisher. Approval
       happens once when the content is officially approved for usage."/> 
      <comment value="The 'date' element may be more recent than the approval date because of minor changes
       or editorial corrections.

See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.approvalDate"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="date"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.approvalDate"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".outboundRelationship[typeCode=&quot;SUBJ&quot;].act[classCode=CACT;moodCode=EVN;code=&quot;a
        pproval&quot;].effectiveTime"/> 
      </mapping> 
      <mapping> 
        <identity value="objimpl"/> 
        <map value="no-gen-base"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.lastReviewDate">
      <path value="ActivityDefinition.lastReviewDate"/> 
      <short value="When the activity definition was last reviewed by the publisher"/> 
      <definition value="The date on which the resource content was last reviewed. Review happens periodically
       after approval but does not change the original approval date."/> 
      <comment value="If specified, this date follows the original approval date.

See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <requirements value="Gives a sense of how &quot;current&quot; the content is.  Resources that have not
       been reviewed in a long time may have a risk of being less appropriate/relevant."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.lastReviewDate"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="date"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.lastReviewDate"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".outboundRelationship[typeCode=&quot;SUBJ&quot;; subsetCode=&quot;RECENT&quot;].act[classCode
        =CACT;moodCode=EVN;code=&quot;review&quot;].effectiveTime"/> 
      </mapping> 
      <mapping> 
        <identity value="objimpl"/> 
        <map value="no-gen-base"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.effectivePeriod">
      <path value="ActivityDefinition.effectivePeriod"/> 
      <short value="When the activity definition is expected to be used"/> 
      <definition value="The period during which the activity definition content was or is planned to be
       in active use."/> 
      <comment value="The effective period for an activity definition  determines when the content is
       applicable for usage and is independent of publication and review dates. For example,
       a activity intended to be used for the year 2016 might be published in 2015.

See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <requirements value="Allows establishing a transition before a resource comes into effect and also allows
       for a sunsetting  process when new versions of the activity definition are or are
       expected to be used instead."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.effectivePeriod"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Period"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="workflow"/> 
        <map value="Definition.effectivePeriod"/> 
      </mapping> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
      <mapping> 
        <identity value="objimpl"/> 
        <map value="no-gen-base"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.topic">
      <path value="ActivityDefinition.topic"/> 
      <short value="E.g. Education, Treatment, Assessment, etc"/> 
      <definition value="Descriptive topics related to the content of the activity. Topics provide a high-level
       categorization of the activity that can be useful for filtering and searching."/> 
      <comment value="DEPRECATION NOTE: For consistency, implementations are encouraged to migrate to
       using the new 'topic' code in the useContext element.  (I.e. useContext.code indicating
       http://terminology.hl7.org/CodeSystem/usage-context-type#topic and useContext.valueCodeableCo
      ncept indicating the topic)"/> 
      <requirements value="Repositories must be able to determine how to categorize the activity definition
       so that it can be found by topical searches."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.topic"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="DefinitionTopic"/> 
        </extension> 
        <strength value="example"/> 
        <description value="High-level categorization of the definition, used for searching, sorting, and filtering."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/definition-topic"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A (to add?)"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.author">
      <path value="ActivityDefinition.author"/> 
      <short value="Who authored the content"/> 
      <definition value="An individiual or organization primarily involved in the creation and maintenance
       of the content."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.author"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="ContactDetail"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=AUT]"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.editor">
      <path value="ActivityDefinition.editor"/> 
      <short value="Who edited the content"/> 
      <definition value="An individual or organization primarily responsible for internal coherence of the
       content."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.editor"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="ContactDetail"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=AUT] { not a great match, but there does not appear to
         be an editor concept in V3 participation }"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.reviewer">
      <path value="ActivityDefinition.reviewer"/> 
      <short value="Who reviewed the content"/> 
      <definition value="An individual or organization asserted by the publisher to be primarily responsible
       for review of some aspect of the content."/> 
      <comment value="See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.reviewer"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="ContactDetail"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer
         or endorser}"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.endorser">
      <path value="ActivityDefinition.endorser"/> 
      <short value="Who endorsed the content"/> 
      <definition value="An individual or organization asserted by the publisher to be responsible for officially
       endorsing the content for use in some setting."/> 
      <comment value="See guidance around (not) making local changes to elements [here](canonicalresource.html#loca
      lization)."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.endorser"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="ContactDetail"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=VRF] {not clear whether VRF best corresponds to reviewer
         or endorser}"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact">
      <path value="ActivityDefinition.relatedArtifact"/> 
      <short value="Additional documentation, citations, etc"/> 
      <definition value="Related artifacts such as additional documentation, justification, or bibliographic
       references."/> 
      <comment value="Each related artifact is either an attachment, or a reference to another resource,
       but not both."/> 
      <requirements value="Activity definitions must be able to provide enough information for consumers of
       the content (and/or interventions or results produced by the content) to be able
       to determine and understand the justification for and evidence in support of the
       content."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.relatedArtifact"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="RelatedArtifact"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".outboundRelationship[typeCode=DOC,RSON,PREV, DRIV, USE, COMP] {successor would
         be PREV w/ inversionInd=true; No support for citation}"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.id">
      <path value="ActivityDefinition.relatedArtifact.id"/> 
      <representation value="xmlAttr"/> 
      <short value="Unique id for inter-element referencing"/> 
      <definition value="Unique id for the element within a resource (for internal references). This may
       be any string value that does not contain spaces."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="Element.id"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="id"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <condition value="ele-1"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.extension">
      <path value="ActivityDefinition.relatedArtifact.extension"/> 
      <slicing> 
        <discriminator> 
          <type value="value"/> 
          <path value="url"/> 
        </discriminator> 
        <description value="Extensions are always sliced by (at least) url"/> 
        <rules value="open"/> 
      </slicing> 
      <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. To make the use of extensions safe and managable, 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."/> 
      <comment 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="Element.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.type">
      <path value="ActivityDefinition.relatedArtifact.type"/> 
      <short value="documentation | justification | citation | predecessor | successor | derived-from
       | depends-on | composed-of | part-of | amends | amended-with | appends | appended-with
       | cites | cited-by | comments-on | comment-in | contains | contained-in | corrects
       | correction-in | replaces | replaced-with | retracts | retracted-by | signs |
       similar-to | supports | supported-with | transforms | transformed-into | transformed-with
       | documents | specification-of | created-with | cite-as"/> 
      <definition value="The type of relationship to the related artifact."/> 
      <comment value="The presence of both sides of a relationship type (e.g. successor and predecessor)
       is required to support use cases where one side of a relationship is not represented
       in FHIR. However, this feature SHALL NOT be used to create bi-directional resource
       links in FHIR instances. Specifically, following the methodology of &quot;new points
       to old&quot; and &quot;many points to one&quot;, when using related artifact elements
       to describe and reference FHIR resources, the type element SHALL be drawn from
       the fhir-related-artifact-type ValueSet."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.type"/> 
        <min value="1"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="RelatedArtifactType"/> 
        </extension> 
        <strength value="required"/> 
        <description value="The type of relationship to the related artifact."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/related-artifact-type|6.0.0-ballot1"/> 
      </binding> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.classifier">
      <path value="ActivityDefinition.relatedArtifact.classifier"/> 
      <short value="Additional classifiers"/> 
      <definition value="Provides additional classifiers of the related artifact."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="RelatedArtifact.classifier"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="RelatedArtifactClassifier"/> 
        </extension> 
        <strength value="example"/> 
        <description value="Additional classifiers for the related artifact."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/citation-artifact-classifier"/> 
      </binding> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.label">
      <path value="ActivityDefinition.relatedArtifact.label"/> 
      <short value="Short label"/> 
      <definition value="A short label that can be used to reference the citation from elsewhere in the
       containing artifact, such as a footnote index."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.label"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.display">
      <path value="ActivityDefinition.relatedArtifact.display"/> 
      <short value="Brief description of the related artifact"/> 
      <definition value="A brief description of the document or knowledge resource being referenced, suitable
       for display to a consumer."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.display"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.citation">
      <path value="ActivityDefinition.relatedArtifact.citation"/> 
      <short value="Bibliographic citation for the artifact"/> 
      <definition value="A bibliographic citation for the related artifact. This text SHOULD be formatted
       according to an accepted citation format."/> 
      <comment value="Additional structured information about citations should be captured as extensions."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.citation"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="markdown"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.document">
      <path value="ActivityDefinition.relatedArtifact.document"/> 
      <short value="What document is being referenced"/> 
      <definition value="The document being referenced, represented as an attachment. This is exclusive
       with the resource element."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.document"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Attachment"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.resource">
      <path value="ActivityDefinition.relatedArtifact.resource"/> 
      <short value="What artifact is being referenced"/> 
      <definition value="The related artifact, such as a library, value set, profile, or other knowledge
       resource."/> 
      <comment value="If the type is predecessor, this is a reference to the succeeding knowledge resource.
       If the type is successor, this is a reference to the prior knowledge resource."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.resource"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.resourceReference">
      <path value="ActivityDefinition.relatedArtifact.resourceReference"/> 
      <short value="What artifact, if not a conformance resource"/> 
      <definition value="The related artifact, if the artifact is not a canonical resource, or a resource
       reference to a canonical resource."/> 
      <comment value="If both resource and resourceReference are present, they SHOULD be consistent and
       reference the same resource. Although relatedArtifact is intended to support references
       to definitional resources, there are cases where non-definitional resources can
       be definitional (such as Location where the kind is mode). Related artifacts SHOULD
       be used to reference definitional resources, and profiles SHOULD be used to make
       that explicit for particular use cases."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.resourceReference"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Reference"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Resource"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="true"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.publicationStatus">
      <path value="ActivityDefinition.relatedArtifact.publicationStatus"/> 
      <short value="draft | active | retired | unknown"/> 
      <definition value="The publication status of the artifact being referred to."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.publicationStatus"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="RelatedArtifactPublicationStatus"/> 
        </extension> 
        <strength value="required"/> 
        <description value="Publication status of an artifact being referred to."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/publication-status|6.0.0-ballot1"/> 
      </binding> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.publicationDate">
      <path value="ActivityDefinition.relatedArtifact.publicationDate"/> 
      <short value="Date of publication of the artifact being referred to"/> 
      <definition value="The date of publication of the artifact being referred to."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="RelatedArtifact.publicationDate"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="date"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
    </element> 
    <element id="ActivityDefinition.library">
      <path value="ActivityDefinition.library"/> 
      <short value="Logic used by the activity definition"/> 
      <definition value="A reference to a Library resource containing any formal logic used by the activity
       definition."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.library"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Library"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".outboundRelationship[typeCode=USE].target[classCode=GROUPER,moodCode=EVN]"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.kind">
      <path value="ActivityDefinition.kind"/> 
      <short value="Kind of resource"/> 
      <definition value="A description of the kind of resource the activity definition is representing.
       For example, a MedicationRequest, a ServiceRequest, or a CommunicationRequest."/> 
      <comment value="The kind element may only specify Request resource types to facilitate considering
       user input as part of processing the result of any automated clinical reasoning
       processes. To support creation of event resources, such as Observations, RiskAssessments,
       and DetectedIssues, use a Task resource with the focus of the task set to the event
       resource to be created. Note that the kind of resource to be created may determine
       what types of extensions are permitted."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.kind"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ActivityDefinitionKind"/> 
        </extension> 
        <strength value="required"/> 
        <description value="The kind of activity the definition is describing."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/request-resource-types|6.0.0-ballot1"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".classCode"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.profile">
      <path value="ActivityDefinition.profile"/> 
      <short value="What profile the resource needs to conform to"/> 
      <definition value="A profile to which the target of the activity definition is expected to conform."/> 
      <requirements value="Allows profiles to be used to describe the types of activities that can be performed
       within a workflow, protocol, or order set."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.profile"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/StructureDefinition"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".templateId"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.code">
      <path value="ActivityDefinition.code"/> 
      <short value="Detail type of activity"/> 
      <definition value="Detailed description of the type of activity; e.g. What lab test, what procedure,
       what kind of encounter."/> 
      <comment value="Tends to be less relevant for activities involving particular products."/> 
      <requirements value="Allows matching performed to planned as well as validation against protocols."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.code"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ActivityDefinitionType"/> 
        </extension> 
        <strength value="example"/> 
        <description value="Detailed type of the activity; e.g. CBC."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/procedure-code"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".code"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.intent">
      <path value="ActivityDefinition.intent"/> 
      <short value="proposal | plan | directive | order | original-order | reflex-order | filler-order
       | instance-order | option"/> 
      <definition value="Indicates the level of authority/intentionality associated with the activity and
       where the request should fit into the workflow chain."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.intent"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="RequestIntent"/> 
        </extension> 
        <strength value="required"/> 
        <description value="Codes indicating the degree of authority/intentionality associated with a request."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/request-intent|6.0.0-ballot1"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".moodCode { of the realized Activity }"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.priority">
      <path value="ActivityDefinition.priority"/> 
      <short value="routine | urgent | asap | stat"/> 
      <definition value="Indicates how quickly the activity  should be addressed with respect to other requests."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.priority"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="RequestPriority"/> 
        </extension> 
        <strength value="required"/> 
        <description value="Identifies the level of importance to be assigned to actioning the request."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/request-priority|6.0.0-ballot1"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".priority { of the realized activity }"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.doNotPerform">
      <path value="ActivityDefinition.doNotPerform"/> 
      <short value="True if the activity should not be performed"/> 
      <definition value="Set this to true if the definition is to indicate that a particular activity should
       NOT be performed. If true, this element should be interpreted to reinforce a negative
       coding. For example NPO as a code with a doNotPerform of true would still indicate
       to NOT perform the action."/> 
      <comment value="This element is not intended to be used to communicate a decision support response
       to cancel an order in progress. That should be done with the &quot;remove&quot;
       type of a PlanDefinition or RequestOrchestration."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.doNotPerform"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="boolean"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="true"/> 
      <isModifierReason value="If true this element negates the specified action. For Example,  instead of a request
       for a procedure, it is a request for the procedure to not occur."/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".negationInd { of the realized activity }"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.timing[x]">
      <path value="ActivityDefinition.timing[x]"/> 
      <short value="When activity is to occur"/> 
      <definition value="The timing or frequency upon which the described activity is to occur."/> 
      <comment value="The intent of the timing element is to provide timing when the action should be
       performed. As a definitional resource, this timing is interpreted as part of an
       apply operation so that the timing of the result actions in a CarePlan or RequestOrchestratio
      n, for example, would be specified by evaluating the timing definition in the context
       of the apply and setting the resulting timing on the appropriate elements of the
       target resource. If the timing is an Age, the activity is expected to be performed
       when the subject is the given Age. When the timing is a Duration, the activity
       is expected to be performed within the specified duration from the apply. When
       the timing is a Range, it may be a range of Ages or Durations, providing a range
       for the expected timing of the resulting activity. When the timing is a Timing,
       it is establishing a schedule for the timing of the resulting activity."/> 
      <requirements value="Allows prompting for activities and detection of missed planned activities."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.timing[x]"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Timing"/> 
      </type> 
      <type> 
        <code value="Age"/> 
      </type> 
      <type> 
        <code value="Range"/> 
      </type> 
      <type> 
        <code value="Duration"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".effectiveTime"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.asNeeded[x]">
      <path value="ActivityDefinition.asNeeded[x]"/> 
      <short value="Preconditions for service"/> 
      <definition value="If a CodeableConcept is present, it indicates the pre-condition for performing
       the service.  For example &quot;pain&quot;, &quot;on flare-up&quot;, etc."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.asNeeded[x]"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="boolean"/> 
      </type> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="true"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ProcedureAsNeededReason"/> 
        </extension> 
        <strength value="example"/> 
        <description value="A coded concept identifying the pre-condition that should hold prior to performing
         a procedure.  For example &quot;pain&quot;, &quot;on flare-up&quot;, etc."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/medication-as-needed-reason"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value="boolean: precondition.negationInd (inversed - so negationInd = true means asNeeded=false
         CodeableConcept: precondition.observationEventCriterion[code=&quot;Assertion&quot;].value"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.location">
      <path value="ActivityDefinition.location"/> 
      <short value="Where it should happen"/> 
      <definition value="Identifies the facility where the activity will occur; e.g. home, hospital, specific
       clinic, etc."/> 
      <comment value="May reference a specific clinical location or may just identify a type of location."/> 
      <requirements value="Helps in planning of activity."/> 
      <alias value="facility"/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.location"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="CodeableReference"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=LOC].role"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant">
      <path value="ActivityDefinition.participant"/> 
      <short value="Who should participate in the action"/> 
      <definition value="Indicates who should participate in performing the action described."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.participant"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="BackboneElement"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=PFM]"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.id">
      <path value="ActivityDefinition.participant.id"/> 
      <representation value="xmlAttr"/> 
      <short value="Unique id for inter-element referencing"/> 
      <definition value="Unique id for the element within a resource (for internal references). This may
       be any string value that does not contain spaces."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="Element.id"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <condition value="ele-1"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.extension">
      <path value="ActivityDefinition.participant.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. To make the use of extensions safe and managable, 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."/> 
      <comment 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="Element.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.modifierExtension">
      <path value="ActivityDefinition.participant.modifierExtension"/> 
      <short value="Extensions that cannot be ignored even if unrecognized"/> 
      <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 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 managable, 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)."/> 
      <comment 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."/> 
      <requirements value="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](extensibility.html#modifierExtension)."/> 
      <alias value="extensions"/> 
      <alias value="user content"/> 
      <alias value="modifiers"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="BackboneElement.modifierExtension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="true"/> 
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
       element that contains them"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.type">
      <path value="ActivityDefinition.participant.type"/> 
      <short value="careteam | device | group | healthcareservice | location | organization | patient
       | practitioner | practitionerrole | relatedperson"/> 
      <definition value="The type of participant in the action."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.participant.type"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="code"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ActivityParticipantType"/> 
        </extension> 
        <strength value="required"/> 
        <description value="The type of participant in the activity."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/action-participant-type|6.0.0-ballot1"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".role.classCode"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.typeCanonical">
      <path value="ActivityDefinition.participant.typeCanonical"/> 
      <short value="Who or what can participate"/> 
      <definition value="The type of participant in the action."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.participant.typeCanonical"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/CapabilityStatement"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".role.classCode"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.typeReference">
      <path value="ActivityDefinition.participant.typeReference"/> 
      <short value="Who or what can participate"/> 
      <definition value="The type of participant in the action."/> 
      <comment value="When this element is a reference, it SHOULD be a reference to a definitional resource
       (for example, a location type, rather than a specific location)."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.participant.typeReference"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Reference"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/CareTeam"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Device"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/DeviceDefinition"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Endpoint"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Group"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/HealthcareService"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Location"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Organization"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Practitioner"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".role.classCode"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.role">
      <path value="ActivityDefinition.participant.role"/> 
      <short value="E.g. Nurse, Surgeon, Parent, etc"/> 
      <definition value="The role the participant should play in performing the described action."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.participant.role"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ActivityParticipantRole"/> 
        </extension> 
        <strength value="example"/> 
        <description value="Defines roles played by participants for the action."/> 
        <valueSet value="http://terminology.hl7.org/ValueSet/action-participant-role"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".role.code"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.participant.function">
      <path value="ActivityDefinition.participant.function"/> 
      <short value="E.g. Author, Reviewer, Witness, etc"/> 
      <definition value="Indicates how the actor will be involved in the action - author, reviewer, witness,
       etc."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.participant.function"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ActionParticipantFunction"/> 
        </extension> 
        <strength value="example"/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/action-participant-function"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".role.code"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.product[x]">
      <path value="ActivityDefinition.product[x]"/> 
      <short value="What's administered/supplied"/> 
      <definition value="Identifies the food, drug or other product being consumed or supplied in the activity."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.product[x]"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Reference"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Medication"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Ingredient"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Substance"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/SubstanceDefinition"/> 
      </type> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="ActivityProduct"/> 
        </extension> 
        <strength value="example"/> 
        <description value="Code describing the type of substance or medication."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/medication-codes"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".participation[typeCode=CSM].role"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.quantity">
      <path value="ActivityDefinition.quantity"/> 
      <short value="How much is administered/consumed/supplied"/> 
      <definition value="Identifies the quantity expected to be consumed at once (per dose, per meal, etc.)."/> 
      <alias value="dose"/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.quantity"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Quantity"/> 
        <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".quantity {for classCode=SPLY}"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.dosage">
      <path value="ActivityDefinition.dosage"/> 
      <short value="Detailed dosage instructions"/> 
      <definition value="Provides detailed dosage instructions in the same way that they are described for
       MedicationRequest resources."/> 
      <comment value="If a dosage instruction is used, the definition should not specify timing or quantity."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.dosage"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Dosage"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".outboundRelationship[typeCode=COMP].target[classCode=SBADM; moodCode=DEFN]"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.bodySite">
      <path value="ActivityDefinition.bodySite"/> 
      <short value="What part of body to perform on"/> 
      <definition value="Indicates the sites on the subject's body where the procedure should be performed
       (I.e. the target sites)."/> 
      <comment value="Only used if not implicit in the code found in ServiceRequest.type."/> 
      <requirements value="Knowing where the procedure is made is important for tracking if multiple sites
       are possible."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.bodySite"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="CodeableConcept"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <binding> 
        <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
          <valueString value="BodySite"/> 
        </extension> 
        <strength value="example"/> 
        <description value="A code that identifies the anatomical location."/> 
        <valueSet value="http://hl7.org/fhir/ValueSet/body-site"/> 
      </binding> 
      <mapping> 
        <identity value="rim"/> 
        <map value=".targetSiteCode {for classCode=PROC, SBADM}"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.specimenRequirement">
      <path value="ActivityDefinition.specimenRequirement"/> 
      <short value="What specimens are required to perform this action"/> 
      <definition value="Defines specimen requirements for the action to be performed, such as required
       specimens for a lab test."/> 
      <requirements value="Needed to represent lab order definitions."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.specimenRequirement"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/SpecimenDefinition"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.observationRequirement">
      <path value="ActivityDefinition.observationRequirement"/> 
      <short value="What observations are required to perform this action"/> 
      <definition value="Defines observation requirements for the action to be performed, such as body weight
       or surface area."/> 
      <requirements value="Needed to represent observation definitions."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.observationRequirement"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/ObservationDefinition"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.observationResultRequirement">
      <path value="ActivityDefinition.observationResultRequirement"/> 
      <short value="What observations must be produced by this action"/> 
      <definition value="Defines the observations that are expected to be produced by the action."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.observationResultRequirement"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/ObservationDefinition"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.transform">
      <path value="ActivityDefinition.transform"/> 
      <short value="Transform to apply the template"/> 
      <definition value="A reference to a StructureMap resource that defines a transform that can be executed
       to produce the intent resource using the ActivityDefinition instance as the input."/> 
      <comment value="Note that if both a transform and dynamic values are specified, the dynamic values
       will be applied to the result of the transform."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.transform"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="canonical"/> 
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/StructureMap"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.dynamicValue">
      <path value="ActivityDefinition.dynamicValue"/> 
      <short value="Dynamic aspects of the definition"/> 
      <definition value="Dynamic values that will be evaluated to produce values for elements of the resulting
       resource. For example, if the dosage of a medication must be computed based on
       the patient's weight, a dynamic value would be used to specify an expression that
       calculated the weight, and the path on the request resource that would contain
       the result."/> 
      <comment value="Dynamic values are applied in the order in which they are defined in the ActivityDefinition.
       Note that if both a transform and dynamic values are specified, the dynamic values
       will be applied to the result of the transform."/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="ActivityDefinition.dynamicValue"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="BackboneElement"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.dynamicValue.id">
      <path value="ActivityDefinition.dynamicValue.id"/> 
      <representation value="xmlAttr"/> 
      <short value="Unique id for inter-element referencing"/> 
      <definition value="Unique id for the element within a resource (for internal references). This may
       be any string value that does not contain spaces."/> 
      <min value="0"/> 
      <max value="1"/> 
      <base> 
        <path value="Element.id"/> 
        <min value="0"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type">
          <valueUrl value="string"/> 
        </extension> 
        <code value="http://hl7.org/fhirpath/System.String"/> 
      </type> 
      <condition value="ele-1"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.dynamicValue.extension">
      <path value="ActivityDefinition.dynamicValue.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. To make the use of extensions safe and managable, 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."/> 
      <comment 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="Element.extension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="n/a"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.dynamicValue.modifierExtension">
      <path value="ActivityDefinition.dynamicValue.modifierExtension"/> 
      <short value="Extensions that cannot be ignored even if unrecognized"/> 
      <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 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 managable, 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)."/> 
      <comment 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."/> 
      <requirements value="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](extensibility.html#modifierExtension)."/> 
      <alias value="extensions"/> 
      <alias value="user content"/> 
      <alias value="modifiers"/> 
      <min value="0"/> 
      <max value="*"/> 
      <base> 
        <path value="BackboneElement.modifierExtension"/> 
        <min value="0"/> 
        <max value="*"/> 
      </base> 
      <type> 
        <code value="Extension"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <isModifier value="true"/> 
      <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
       element that contains them"/> 
      <isSummary value="true"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.dynamicValue.path">
      <path value="ActivityDefinition.dynamicValue.path"/> 
      <short value="The path to the element to be set dynamically"/> 
      <definition value="The path to the element to be customized. This is the path on the resource that
       will hold the result of the calculation defined by the expression. The specified
       path SHALL be a FHIRPath resolvable on the specified target type of the ActivityDefinition,
       and SHALL consist only of identifiers, constant indexers, and a restricted subset
       of functions. The path is allowed to contain qualifiers (.) to traverse sub-elements,
       as well as indexers ([x]) to traverse multiple-cardinality sub-elements (see the
       [Simple FHIRPath Profile](fhirpath.html#simple) for full details)."/> 
      <comment value="The path attribute contains a [Simple FHIRPath Subset](fhirpath.html#simple) that
       allows path traversal, but not calculation."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.dynamicValue.path"/> 
        <min value="1"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="string"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
    <element id="ActivityDefinition.dynamicValue.expression">
      <path value="ActivityDefinition.dynamicValue.expression"/> 
      <short value="An expression that provides the dynamic value for the customization"/> 
      <definition value="An expression specifying the value of the customized element."/> 
      <comment value="The expression may be inlined, or may be a reference to a named expression within
       a logic library referenced by the library element."/> 
      <min value="1"/> 
      <max value="1"/> 
      <base> 
        <path value="ActivityDefinition.dynamicValue.expression"/> 
        <min value="1"/> 
        <max value="1"/> 
      </base> 
      <type> 
        <code value="Expression"/> 
      </type> 
      <constraint> 
        <key value="ele-1"/> 
        <severity value="error"/> 
        <human value="All FHIR elements must have a @value or children"/> 
        <expression value="hasValue() or (children().count() &gt; id.count())"/> 
        <source value="http://hl7.org/fhir/StructureDefinition/Element"/> 
      </constraint> 
      <mustSupport value="false"/> 
      <isModifier value="false"/> 
      <isSummary value="false"/> 
      <mapping> 
        <identity value="rim"/> 
        <map value="N/A"/> 
      </mapping> 
    </element> 
  </snapshot> 
  <differential> 
    <element id="ActivityDefinition">
      <path value="ActivityDefinition"/> 
      <min value="1"/> 
      <max value="1"/> 
    </element> 
    <element id="ActivityDefinition.identifier">
      <path value="ActivityDefinition.identifier"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.date">
      <path value="ActivityDefinition.date"/> 
      <min value="1"/> 
      <max value="1"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.contact">
      <path value="ActivityDefinition.contact"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.useContext">
      <path value="ActivityDefinition.useContext"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.jurisdiction">
      <path value="ActivityDefinition.jurisdiction"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.purpose">
      <path value="ActivityDefinition.purpose"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.usage">
      <path value="ActivityDefinition.usage"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.copyright">
      <path value="ActivityDefinition.copyright"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.copyrightLabel">
      <path value="ActivityDefinition.copyrightLabel"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.approvalDate">
      <path value="ActivityDefinition.approvalDate"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.lastReviewDate">
      <path value="ActivityDefinition.lastReviewDate"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.effectivePeriod">
      <path value="ActivityDefinition.effectivePeriod"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.topic">
      <path value="ActivityDefinition.topic"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.author">
      <path value="ActivityDefinition.author"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.editor">
      <path value="ActivityDefinition.editor"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.reviewer">
      <path value="ActivityDefinition.reviewer"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.endorser">
      <path value="ActivityDefinition.endorser"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact">
      <path value="ActivityDefinition.relatedArtifact"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.display">
      <path value="ActivityDefinition.relatedArtifact.display"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.document">
      <path value="ActivityDefinition.relatedArtifact.document"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.resource">
      <path value="ActivityDefinition.relatedArtifact.resource"/> 
      <mustSupport value="true"/> 
    </element> 
    <element id="ActivityDefinition.relatedArtifact.resourceReference">
      <path value="ActivityDefinition.relatedArtifact.resourceReference"/> 
      <mustSupport value="true"/> 
    </element> 
  </differential> 
</StructureDefinition>