Virtually Healthcare HL7 FHIR Implementation Guide
0.1.0-current - ci-build
Virtually Healthcare HL7 FHIR Implementation Guide
0.1.0-current - ci-build
Virtually Healthcare HL7 FHIR Implementation Guide, published by Virtually Healthcare. This guide is not an authorized publication; it is the continuous build for version 0.1.0-current built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/Virtually-Healthcare/Virtually-Healthcare-FHIR-Implementation-Guide/ and changes regularly. See the Directory of published versions
| Draft as of 2024-11-06 |
XML representation of the AllergyIntolerance resource profile.
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="AllergyIntolerance"/>
<text>
<status value="extensions"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition AllergyIntolerance</b></p><a name="AllergyIntolerance"> </a><a name="hcAllergyIntolerance"> </a><a name="AllergyIntolerance-en-GB"> </a><table border="0" cellpadding="0" cellspacing="0" style="border: 0px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top;"><tr style="border: 1px #F0F0F0 solid; font-size: 11px; font-family: verdana; vertical-align: top"><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a></th><th style="width: 100px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description & Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH3goXBCwdPqAP0wAAAldJREFUOMuNk0tIlFEYhp9z/vE2jHkhxXA0zJCMitrUQlq4lnSltEqCFhFG2MJFhIvIFpkEWaTQqjaWZRkp0g26URZkTpbaaOJkDqk10szoODP//7XIMUe0elcfnPd9zsfLOYplGrpRwZaqTtw3K7PtGem7Q6FoidbGgqHVy/HRb669R+56zx7eRV1L31JGxYbBtjKK93cxeqfyQHbehkZbUkK20goELEuIzEd+dHS+qz/Y8PTSif0FnGkbiwcAjHaU1+QWOptFiyCLp/LnKptpqIuXHx6rbR26kJcBX3yLgBfnd7CxwJmflpP2wUg0HIAoUUpZBmKzELGWcN8nAr6Gpu7tLU/CkwAaoKTWRSQyt89Q8w6J+oVQkKnBoblH7V0PPvUOvDYXfopE/SJmALsxnVm6LbkotrUtNowMeIrVrBcBpaMmdS0j9df7abpSuy7HWehwJdt1lhVwi/J58U5beXGAF6c3UXLycw1wdFklArBn87xdh0ZsZtArghBdAA3+OEDVubG4UEzP6x1FOWneHh2VDAHBAt80IbdXDcesNoCvs3E5AFyNSU5nbrDPZpcUEQQTFZiEVx+51fxMhhyJEAgvlriadIJZZksRuwBYMOPBbO3hePVVqgEJhFeUuFLhIPkRP6BQLIBrmMenujm/3g4zc398awIe90Zb5A1vREALqneMcYgP/xVQWlG+Ncu5vgwwlaUNx+3799rfe96u9K0JSDXcOzOTJg4B6IgmXfsygc7/Bvg9g9E58/cDVmGIBOP/zT8Bz1zqWqpbXIsd0O9hajXfL6u4BaOS6SeWAAAAAElFTkSuQmCC" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck1.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_resource.png" alt="." style="background-color: white; background-color: inherit" title="Resource" class="hierarchy"/> <a href="StructureDefinition-AllergyIntolerance-definitions.html#AllergyIntolerance">AllergyIntolerance</a><a name="AllergyIntolerance"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">*</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="https://simplifier.net/resolve?scope=fhir.r4.ukcore.stu2@2.1.0&canonical=https://fhir.hl7.org.uk/StructureDefinition/UKCore-AllergyIntolerance">UKCoreAllergyIntolerance</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Allergy or Intolerance (generally: Risk of adverse reaction to a substance)</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck13.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_slice.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Slice Definition" class="hierarchy"/> <a style="font-style: italic" href="StructureDefinition-AllergyIntolerance-definitions.html#AllergyIntolerance.identifier">Slices for identifier</a><a name="AllergyIntolerance.identifier"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="padding-left: 3px; padding-right: 3px; color: white; background-color: red; font-style: italic" title="This element must be supported">S</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="font-style: italic"/><span style="font-style: italic">1</span><span style="font-style: italic">..</span><span style="opacity: 0.5; font-style: italic">*</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a style="opacity: 0.5; font-style: italic" href="http://hl7.org/fhir/R4/datatypes.html#Identifier">Identifier</a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5; font-style: italic">External ids for this item</span><br style="font-style: italic"/><span style="font-weight:bold; font-style: italic">Slice: </span><span style="font-style: italic">Unordered, Closed by pattern:system</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck124.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vline.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end_slicer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_slice_item.png" alt="." style="background-color: white; background-color: inherit" title="Slice Item" class="hierarchy"/> <a href="StructureDefinition-AllergyIntolerance-definitions.html#AllergyIntolerance.identifier:CommonResourceIdentifiers" title="Slice CommonResourceIdentifiers">identifier:CommonResourceIdentifiers</a><a name="AllergyIntolerance.identifier.2"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">0..*</td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="StructureDefinition-CommonResourceIdentifiers.html" title="Identifier">CommonResourceIdentifiers</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy">Common Resource Identifiers<br/></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: #F7F7F7"><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck01.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_reference.png" alt="." style="background-color: #F7F7F7; background-color: inherit" title="Reference to another Resource" class="hierarchy"/> <a href="StructureDefinition-AllergyIntolerance-definitions.html#AllergyIntolerance.patient">patient</a><a name="AllergyIntolerance.patient"> </a></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">1</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="http://hl7.org/fhir/R4/references.html">Reference</a>(<a href="StructureDefinition-Patient.html">Patient</a>)</td><td style="vertical-align: top; text-align : left; background-color: #F7F7F7; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">Who the sensitivity is for</span></td></tr>
<tr style="border: 0px #F0F0F0 solid; padding:0px; vertical-align: top; background-color: white"><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px; white-space: nowrap; background-image: url(tbl_bck000.png)" class="hierarchy"><img src="tbl_spacer.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_blank.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="." style="background-color: inherit" class="hierarchy"/><img src="icon_datatype.gif" alt="." style="background-color: white; background-color: inherit" title="Data Type" class="hierarchy"/> <a href="StructureDefinition-AllergyIntolerance-definitions.html#AllergyIntolerance.patient.identifier">identifier</a><a name="AllergyIntolerance.patient.identifier"> </a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"/><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">0</span><span style="opacity: 0.5">..</span><span style="opacity: 0.5">1</span></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><a href="StructureDefinition-nhs-numbers.html" title="Identifier">NHSNumbers</a></td><td style="vertical-align: top; text-align : left; background-color: white; border: 0px #F0F0F0 solid; padding:0px 4px 0px 4px" class="hierarchy"><span style="opacity: 0.5">An identifier intended for computation</span></td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
</text>
<url
value="https://fhir.virtually.healthcare/StructureDefinition/AllergyIntolerance"/>
<version value="0.1.0-current"/>
<name value="AllergyIntolerance"/>
<status value="draft"/>
<date value="2024-11-06T08:30:37+00:00"/>
<publisher value="Virtually Healthcare"/>
<contact>
<name value="Virtually Healthcare"/>
<telecom>
<system value="url"/>
<value value="https://virtually.healthcare"/>
</telecom>
</contact>
<description
value="Extension to UKCore AllergyIntolerance and includes elements from [HL7 International Patient Access](https://build.fhir.org/ig/HL7/fhir-ipa/)"/>
<jurisdiction>
<coding>
<system value="urn:iso:std:iso:3166"/>
<code value="GB"/>
<display value="United Kingdom of Great Britain and Northern Ireland"/>
</coding>
</jurisdiction>
<fhirVersion value="4.0.1"/>
<kind value="resource"/>
<abstract value="false"/>
<type value="AllergyIntolerance"/>
<baseDefinition
value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-AllergyIntolerance"/>
<derivation value="constraint"/>
<snapshot>
<element id="AllergyIntolerance">
<path value="AllergyIntolerance"/>
<short
value="Allergy or Intolerance (generally: Risk of adverse reaction to a substance)"/>
<definition
value="Risk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance."/>
<comment
value="Substances include, but are not limited to: a therapeutic substance administered correctly at an appropriate dosage for the individual; food; material derived from plants or animals; or venom from insect stings."/>
<alias value="Allergy"/>
<alias value="Intolerance"/>
<alias value="Adverse Reaction"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance"/>
<min value="0"/>
<max value="*"/>
</base>
<constraint>
<key value="dom-2"/>
<severity value="error"/>
<human
value="If the resource is contained in another resource, it SHALL NOT contain nested Resources"/>
<expression value="contained.contained.empty()"/>
<xpath value="not(parent::f:contained and f:contained)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-4"/>
<severity value="error"/>
<human
value="If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated"/>
<expression
value="contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"/>
<xpath
value="not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-3"/>
<severity value="error"/>
<human
value="If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource"/>
<expression
value="contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()"/>
<xpath
value="not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:reference/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice">
<valueBoolean value="true"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation">
<valueMarkdown
value="When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."/>
</extension>
<key value="dom-6"/>
<severity value="warning"/>
<human
value="A resource should have narrative for robust management"/>
<expression value="text.`div`.exists()"/>
<xpath value="exists(f:text/h:div)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="dom-5"/>
<severity value="error"/>
<human
value="If a resource is contained in another resource, it SHALL NOT have a security label"/>
<expression value="contained.meta.security.empty()"/>
<xpath value="not(exists(f:contained/*/f:meta/f:security))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/DomainResource"/>
</constraint>
<constraint>
<key value="ait-1"/>
<severity value="error"/>
<human
value="AllergyIntolerance.clinicalStatus SHALL be present if verificationStatus is not entered-in-error."/>
<expression
value="verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').exists() or clinicalStatus.exists()"/>
<xpath
value="f:verificationStatus/f:coding/f:code/@value='entered-in-error' or exists(f:clinicalStatus)"/>
<source
value="http://hl7.org/fhir/StructureDefinition/AllergyIntolerance"/>
</constraint>
<constraint>
<key value="ait-2"/>
<severity value="error"/>
<human
value="AllergyIntolerance.clinicalStatus SHALL NOT be present if verification Status is entered-in-error"/>
<expression
value="verificationStatus.coding.where(system = 'http://terminology.hl7.org/CodeSystem/allergyintolerance-verification' and code = 'entered-in-error').empty() or clinicalStatus.empty()"/>
<xpath
value="not(f:verificationStatus/f:coding/f:code/@value='entered-in-error') or not(exists(f:clinicalStatus))"/>
<source
value="http://hl7.org/fhir/StructureDefinition/AllergyIntolerance"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="Entity. Role, or Act"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="Observation[classCode=OBS, moodCode=EVN]"/>
</mapping>
</element>
<element id="AllergyIntolerance.id">
<path value="AllergyIntolerance.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="The only time that a resource does not have an id is when it is being submitted to the server using a create operation."/>
<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>
<isSummary value="true"/>
</element>
<element id="AllergyIntolerance.meta">
<path value="AllergyIntolerance.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>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.implicitRules">
<path value="AllergyIntolerance.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 it's 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>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<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 it's meaning or interpretation"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="AllergyIntolerance.language">
<path value="AllergyIntolerance.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>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet">
<valueCanonical value="http://hl7.org/fhir/ValueSet/all-languages"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="Language"/>
</extension>
<strength value="preferred"/>
<description value="A human language."/>
<valueSet value="http://hl7.org/fhir/ValueSet/languages"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="AllergyIntolerance.text">
<path value="AllergyIntolerance.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 "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety."/>
<comment
value="Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later."/>
<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="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="Act.text?"/>
</mapping>
</element>
<element id="AllergyIntolerance.contained">
<path value="AllergyIntolerance.contained"/>
<short value="Contained, inline Resources"/>
<definition
value="These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope."/>
<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>
<mapping>
<identity value="rim"/>
<map value="Entity. Role, or Act"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.extension">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="normative"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
<valueCode value="4.0.0"/>
</extension>
<path value="AllergyIntolerance.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 resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
<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="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.extension:evidence">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="normative"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
<valueCode value="4.0.0"/>
</extension>
<path value="AllergyIntolerance.extension"/>
<sliceName value="evidence"/>
<short
value="A reference to results of investigations that confirmed the certainty of the diagnosis."/>
<definition
value="A reference to results of investigations that confirmed the certainty of the diagnosis."/>
<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="DomainResource.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-Evidence"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.modifierExtension">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="normative"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
<valueCode value="4.0.0"/>
</extension>
<path value="AllergyIntolerance.modifierExtension"/>
<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="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 manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<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](http://hl7.org/fhir/R4/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>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="true"/>
<isModifierReason
value="Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.identifier">
<path value="AllergyIntolerance.identifier"/>
<slicing>
<discriminator>
<type value="pattern"/>
<path value="system"/>
</discriminator>
<rules value="closed"/>
</slicing>
<short value="External ids for this item"/>
<definition
value="Business identifiers assigned to this AllergyIntolerance by the performer or other systems which remain constant as the resource is updated and propagates from server to server."/>
<comment
value="This is a business identifier, not a resource identifier (see [discussion](http://hl7.org/fhir/R4/resource.html#identifiers)). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number."/>
<requirements
value="Allows identification of the AllergyIntolerance as it is known by various participating systems and in a way that remains consistent across servers."/>
<min value="1"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance.identifier"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Identifier"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="true"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map
value="CX / EI (occasionally, more often EI maps to a resource id or a URL)"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]"/>
</mapping>
<mapping>
<identity value="servd"/>
<map value="Identifier"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.identifier"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="IAM-7"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="id"/>
</mapping>
</element>
<element id="AllergyIntolerance.identifier:CommonResourceIdentifiers">
<path value="AllergyIntolerance.identifier"/>
<sliceName value="CommonResourceIdentifiers"/>
<short value="Common Resource Identifiers"/>
<definition
value="An identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers."/>
<comment
value="This is a business identifier, not a resource identifier (see [discussion](http://hl7.org/fhir/R4/resource.html#identifiers)). It is best practice for the identifier to only appear on a single resource instance, however business practices may occasionally dictate that multiple resource instances with the same identifier can exist - possibly even with different resource types. For example, multiple Patient and a Person resource instance might share the same social insurance number."/>
<requirements
value="Allows identification of the AllergyIntolerance as it is known by various participating systems and in a way that remains consistent across servers."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance.identifier"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Identifier"/>
<profile
value="https://fhir.virtually.healthcare/StructureDefinition/CommonResourceIdentifiers"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map
value="CX / EI (occasionally, more often EI maps to a resource id or a URL)"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]"/>
</mapping>
<mapping>
<identity value="servd"/>
<map value="Identifier"/>
</mapping>
</element>
<element id="AllergyIntolerance.clinicalStatus">
<path value="AllergyIntolerance.clinicalStatus"/>
<short value="active | inactive | resolved"/>
<definition value="The clinical status of the allergy or intolerance."/>
<comment
value="Refer to [discussion](http://hl7.org/fhir/R4/extensibility.html#Special-Case) if clincalStatus is missing data.
The data type is CodeableConcept because clinicalStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.clinicalStatus"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="CodeableConcept"/>
</type>
<condition value="ele-1"/>
<condition value="ait-1"/>
<condition value="ait-2"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="true"/>
<isModifier value="true"/>
<isModifierReason
value="This element is labeled as a modifier because the status contains the codes inactive and resolved that mark the AllergyIntolerance as no longer active."/>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="AllergyIntoleranceClinicalStatus"/>
</extension>
<strength value="required"/>
<description
value="The clinical status of the allergy or intolerance."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.1"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="CE/CNE/CWE"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="CD"/>
</mapping>
<mapping>
<identity value="orim"/>
<map value="fhir:CodeableConcept rdfs:subClassOf dt:CD"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.status"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="Observation ACT .inboundRelationship[typeCode=COMP].source[classCode=OBS, code="clinicalStatus", moodCode=EVN].value"/>
</mapping>
</element>
<element id="AllergyIntolerance.clinicalStatus.id">
<path value="AllergyIntolerance.clinicalStatus.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>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="AllergyIntolerance.clinicalStatus.extension">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="normative"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
<valueCode value="4.0.0"/>
</extension>
<path value="AllergyIntolerance.clinicalStatus.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 manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
<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>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element
id="AllergyIntolerance.clinicalStatus.extension:allergyIntoleranceEnd">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="normative"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
<valueCode value="4.0.0"/>
</extension>
<path value="AllergyIntolerance.clinicalStatus.extension"/>
<sliceName value="allergyIntoleranceEnd"/>
<short
value="Supports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid."/>
<definition
value="Supports the date when the allergy or intolerance was no longer valid, and/or, the reason why the allergy or intolerance is no longer valid."/>
<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="1"/>
<base>
<path value="Element.extension"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Extension"/>
<profile
value="https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-AllergyIntoleranceEnd"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.clinicalStatus.coding">
<path value="AllergyIntolerance.clinicalStatus.coding"/>
<short value="Code defined by a terminology system"/>
<definition
value="A reference to a code defined by a terminology system."/>
<comment
value="Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true."/>
<requirements
value="Allows for alternative encodings within a code system, and translations to other code systems."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="CodeableConcept.coding"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Coding"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map
value="CE/CNE/CWE subset one of the sets of component 1-3 or 4-6"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="CV"/>
</mapping>
<mapping>
<identity value="orim"/>
<map value="fhir:Coding rdfs:subClassOf dt:CDCoding"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="C*E.1-8, C*E.10-22"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="union(., ./translation)"/>
</mapping>
<mapping>
<identity value="orim"/>
<map
value="fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding"/>
</mapping>
</element>
<element id="AllergyIntolerance.clinicalStatus.text">
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
<valueBoolean value="true"/>
</extension>
<path value="AllergyIntolerance.clinicalStatus.text"/>
<short value="Plain text representation of the concept"/>
<definition
value="A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user."/>
<comment
value="Very often the text is the same as a displayName of one of the codings."/>
<requirements
value="The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="CodeableConcept.text"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="C*E.9. But note many systems use C*E.2 for this"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="./originalText[mediaType/code="text/plain"]/data"/>
</mapping>
<mapping>
<identity value="orim"/>
<map
value="fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText"/>
</mapping>
</element>
<element id="AllergyIntolerance.verificationStatus">
<path value="AllergyIntolerance.verificationStatus"/>
<short value="unconfirmed | confirmed | refuted | entered-in-error"/>
<definition
value="Assertion about certainty associated with the propensity, or potential risk, of a reaction to the identified substance (including pharmaceutical product)."/>
<comment
value="The data type is CodeableConcept because verificationStatus has some clinical judgment involved, such that there might need to be more specificity than the required FHIR value set allows. For example, a SNOMED coding might allow for additional specificity."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.verificationStatus"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="CodeableConcept"/>
</type>
<condition value="ele-1"/>
<condition value="ait-1"/>
<condition value="ait-2"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="true"/>
<isModifier value="true"/>
<isModifierReason
value="This element is labeled as a modifier because the status contains the codes refuted and entered-in-error that mark the AllergyIntolerance as not currently valid."/>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="AllergyIntoleranceVerificationStatus"/>
</extension>
<strength value="required"/>
<description
value="Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/allergyintolerance-verification|4.0.1"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="CE/CNE/CWE"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="CD"/>
</mapping>
<mapping>
<identity value="orim"/>
<map value="fhir:CodeableConcept rdfs:subClassOf dt:CD"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.status"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="Observation ACT .inboundRelationship[typeCode=COMP].source[classCode=OBS, code="verificationStatus", moodCode=EVN].value"/>
</mapping>
</element>
<element id="AllergyIntolerance.type">
<path value="AllergyIntolerance.type"/>
<short value="allergy | intolerance - Underlying mechanism (if known)"/>
<definition
value="Identification of the underlying physiological mechanism for the reaction risk."/>
<comment
value="Allergic (typically immune-mediated) reactions have been traditionally regarded as an indicator for potential escalation to significant future risk. Contemporary knowledge suggests that some reactions previously thought to be immune-mediated are, in fact, non-immune, but in some cases can still pose a life threatening risk. It is acknowledged that many clinicians might not be in a position to distinguish the mechanism of a particular reaction. Often the term "allergy" is used rather generically and may overlap with the use of "intolerance" - in practice the boundaries between these two concepts might not be well-defined or understood. This data element is included nevertheless, because many legacy systems have captured this attribute. Immunologic testing may provide supporting evidence for the basis of the reaction and the causative substance, but no tests are 100% sensitive or specific for sensitivity to a particular substance. If, as is commonly the case, it is unclear whether the reaction is due to an allergy or an intolerance, then the type element should be omitted from the resource."/>
<alias value="Category"/>
<alias value="Class"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.type"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="AllergyIntoleranceType"/>
</extension>
<strength value="required"/>
<description
value="Identification of the underlying physiological mechanism for a Reaction Risk."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/allergy-intolerance-type|4.0.1"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.class"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="IAM-9"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="code"/>
</mapping>
</element>
<element id="AllergyIntolerance.category">
<path value="AllergyIntolerance.category"/>
<short value="food | medication | environment | biologic"/>
<definition value="Category of the identified substance."/>
<comment
value="This data element has been included because it is currently being captured in some clinical systems. This data can be derived from the substance where coding systems are used, and is effectively redundant in that situation. When searching on category, consider the implications of AllergyIntolerance resources without a category. For example, when searching on category = medication, medication allergies that don't have a category valued will not be returned. Refer to [search](http://hl7.org/fhir/R4/search.html) for more information on how to search category with a :missing modifier to get allergies that don't have a category. Additionally, category should be used with caution because category can be subjective based on the sender."/>
<alias value="Category"/>
<alias value="Type"/>
<alias value="Reaction Type"/>
<alias value="Class"/>
<min value="0"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance.category"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="code"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="AllergyIntoleranceCategory"/>
</extension>
<strength value="required"/>
<description
value="Category of an identified substance associated with allergies or intolerances."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/allergy-intolerance-category|4.0.1"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.class"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="AL1-2"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="value < IntoleranceValue (Agent)"/>
</mapping>
</element>
<element id="AllergyIntolerance.criticality">
<path value="AllergyIntolerance.criticality"/>
<short value="low | high | unable-to-assess"/>
<definition
value="Estimate of the potential clinical harm, or seriousness, of the reaction to the identified substance."/>
<comment
value="The default criticality value for any propensity to an adverse reaction should be 'Low Risk', indicating at the very least a relative contraindication to deliberate or voluntary exposure to the substance. 'High Risk' is flagged if the clinician has identified a propensity for a more serious or potentially life-threatening reaction, such as anaphylaxis, and implies an absolute contraindication to deliberate or voluntary exposure to the substance. If this element is missing, the criticality is unknown (though it may be known elsewhere). Systems that capture a severity at the condition level are actually representing the concept of criticality whereas the severity documented at the reaction level is representing the true reaction severity. Existing systems that are capturing both condition criticality and reaction severity may use the term "severity" to represent both. Criticality is the worst it could be in the future (i.e. situation-agnostic) whereas severity is situation-dependent."/>
<alias value="Severity"/>
<alias value="Seriousness"/>
<alias value="Contra-indication"/>
<alias value="Risk"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.criticality"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="AllergyIntoleranceCriticality"/>
</extension>
<strength value="required"/>
<description
value="Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality|4.0.1"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.grade"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="AL1-4"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="inboundRelationship[typeCode=SUBJ].source[classCode=OBS, moodCode=EVN, code=SEV, value <= SeverityObservation (Severity Level)]"/>
</mapping>
</element>
<element id="AllergyIntolerance.code">
<path value="AllergyIntolerance.code"/>
<short value="Code that identifies the allergy or intolerance"/>
<definition
value="Code for an allergy or intolerance statement (either a positive or a negated/excluded statement). This may be a code for a substance or pharmaceutical product that is considered to be responsible for the adverse reaction risk (e.g., "Latex"), an allergy or intolerance condition (e.g., "Latex allergy"), or a negated/excluded code for a specific substance or class (e.g., "No latex allergy") or a general or categorical negated statement (e.g., "No known allergy", "No known drug allergies"). Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance."/>
<comment
value="It is strongly recommended that this element be populated using a terminology, where possible. For example, some terminologies used include RxNorm, SNOMED CT, DM+D, NDFRT, ICD-9, IDC-10, UNII, and ATC. Plain text should only be used if there is no appropriate terminology available. Additional details can be specified in the text.
When a substance or product code is specified for the 'code' element, the "default" semantic context is that this is a positive statement of an allergy or intolerance (depending on the value of the 'type' element, if present) condition to the specified substance/product. In the corresponding SNOMED CT allergy model, the specified substance/product is the target (destination) of the "Causative agent" relationship.
The 'substanceExposureRisk' extension is available as a structured and more flexible alternative to the 'code' element for making positive or negative allergy or intolerance statements. This extension provides the capability to make "no known allergy" (or "no risk of adverse reaction") statements regarding any coded substance/product (including cases when a pre-coordinated "no allergy to x" concept for that substance/product does not exist). If the 'substanceExposureRisk' extension is present, the AllergyIntolerance.code element SHALL be omitted."/>
<alias value="Code"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.code"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="CodeableConcept"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="true"/>
<isSummary value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="AllergyIntoleranceCode"/>
</extension>
<strength value="preferred"/>
<description
value="Type of the substance/product, allergy or intolerance condition, or negation/exclusion codes for reporting no known allergies."/>
<valueSet
value="https://fhir.hl7.org.uk/ValueSet/UKCore-AllergyCode"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="CE/CNE/CWE"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="CD"/>
</mapping>
<mapping>
<identity value="orim"/>
<map value="fhir:CodeableConcept rdfs:subClassOf dt:CD"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.what[x]"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="AL1-3 / IAM-3"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="substance/product:
.participation[typeCode=CAGNT].role[classCode=ADMM].player[classCode=MAT, determinerCode=KIND, code <= ExposureAgentEntityType]
negated/excluded substance/product:
.participation[typeCode=CAGNT, negationInd=true].role[classCode=ADMM].player[classCode=MAT, determinerCode=KIND, code <= ExposureAgentEntityType]
positive or negated/excluded condition/situation:
Observation.code=ASSERTION; Observation.value"/>
</mapping>
</element>
<element id="AllergyIntolerance.patient">
<path value="AllergyIntolerance.patient"/>
<short value="Who the sensitivity is for"/>
<definition value="The patient who has the allergy or intolerance."/>
<comment
value="References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository."/>
<alias value="Patient"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.patient"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="Reference"/>
<targetProfile
value="https://fhir.virtually.healthcare/StructureDefinition/Patient"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ref-1"/>
<severity value="error"/>
<human
value="SHALL have a contained resource if a local reference is provided"/>
<expression
value="reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"/>
<xpath
value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Reference"/>
</constraint>
<mustSupport value="true"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.subject[x]"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="(PID-3)"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value=".participation[typeCode=SBJ].role[classCode=PAT]"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.subject"/>
</mapping>
</element>
<element id="AllergyIntolerance.patient.id">
<path value="AllergyIntolerance.patient.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>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="AllergyIntolerance.patient.extension">
<path value="AllergyIntolerance.patient.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 manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<isModifier value="false"/>
<isSummary value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="AllergyIntolerance.patient.reference">
<path value="AllergyIntolerance.patient.reference"/>
<short value="Literal reference, Relative, internal or absolute URL"/>
<definition
value="A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources."/>
<comment
value="Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Reference.reference"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<condition value="ref-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.patient.type">
<path value="AllergyIntolerance.patient.type"/>
<short value="Type the reference refers to (e.g. "Patient")"/>
<definition
value="The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.
The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources)."/>
<comment
value="This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Reference.type"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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="FHIRResourceTypeExt"/>
</extension>
<strength value="extensible"/>
<description
value="Aa resource (or, for logical models, the URI of the logical model)."/>
<valueSet value="http://hl7.org/fhir/ValueSet/resource-types"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.patient.identifier">
<path value="AllergyIntolerance.patient.identifier"/>
<short value="An identifier intended for computation"/>
<definition
value="An identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers."/>
<comment
value="When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.
When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference
Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.
Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any)."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Reference.identifier"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="Identifier"/>
<profile
value="https://fhir.virtually.healthcare/StructureDefinition/nhs-numbers"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map
value="CX / EI (occasionally, more often EI maps to a resource id or a URL)"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]"/>
</mapping>
<mapping>
<identity value="servd"/>
<map value="Identifier"/>
</mapping>
</element>
<element id="AllergyIntolerance.patient.display">
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
<valueBoolean value="true"/>
</extension>
<path value="AllergyIntolerance.patient.display"/>
<short value="Text alternative for the resource"/>
<definition
value="Plain text narrative that identifies the resource in addition to the resource reference."/>
<comment
value="This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Reference.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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<isModifier value="false"/>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.encounter">
<path value="AllergyIntolerance.encounter"/>
<short value="Encounter when the allergy or intolerance was asserted"/>
<definition
value="The encounter when the allergy or intolerance was asserted."/>
<comment
value="References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.encounter"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="Reference"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/Encounter"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ref-1"/>
<severity value="error"/>
<human
value="SHALL have a contained resource if a local reference is provided"/>
<expression
value="reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"/>
<xpath
value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Reference"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.context"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value=".inboundRelationship[typeCode=COMP].source[classCode=ENC, moodCode=EVN]"/>
</mapping>
</element>
<element id="AllergyIntolerance.onset[x]">
<path value="AllergyIntolerance.onset[x]"/>
<short value="When allergy or intolerance was identified"/>
<definition
value="Estimated or actual date, date-time, or age when allergy or intolerance was identified."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.onset[x]"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="dateTime"/>
</type>
<type>
<code value="Age"/>
</type>
<type>
<code value="Period"/>
</type>
<type>
<code value="Range"/>
</type>
<type>
<code value="string"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.init"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="effectiveTime.low"/>
</mapping>
</element>
<element id="AllergyIntolerance.recordedDate">
<path value="AllergyIntolerance.recordedDate"/>
<short
value="Date first version of the resource instance was recorded"/>
<definition
value="The recordedDate represents when this particular AllergyIntolerance record was created in the system, which is often a system-generated date."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.recordedDate"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="dateTime"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.recorded"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="IAM-13"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value=".participation[typeCode=AUT].time"/>
</mapping>
</element>
<element id="AllergyIntolerance.recorder">
<path value="AllergyIntolerance.recorder"/>
<short value="Who recorded the sensitivity"/>
<definition
value="Individual who recorded the record and takes responsibility for its content."/>
<comment
value="References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository."/>
<alias value="Author"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.recorder"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="Reference"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/Patient"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ref-1"/>
<severity value="error"/>
<human
value="SHALL have a contained resource if a local reference is provided"/>
<expression
value="reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"/>
<xpath
value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Reference"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.author"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value=".participation[typeCode=AUT].role"/>
</mapping>
</element>
<element id="AllergyIntolerance.asserter">
<path value="AllergyIntolerance.asserter"/>
<short value="Source of the information about the allergy"/>
<definition
value="The source of the information about the allergy that is recorded."/>
<comment
value="The recorder takes responsibility for the content, but can reference the source from where they got it."/>
<alias value="Source"/>
<alias value="Informant"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.asserter"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="Reference"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/Patient"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/RelatedPerson"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/Practitioner"/>
<targetProfile
value="http://hl7.org/fhir/StructureDefinition/PractitionerRole"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<constraint>
<key value="ref-1"/>
<severity value="error"/>
<human
value="SHALL have a contained resource if a local reference is provided"/>
<expression
value="reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"/>
<xpath
value="not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Reference"/>
</constraint>
<isSummary value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="The target of a resource reference is a RIM entry point (Act, Role, or Entity)"/>
</mapping>
<mapping>
<identity value="w5"/>
<map value="FiveWs.source"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="IAM-14 (if patient) / IAM-18 (if practitioner)"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value=".participation[typeCode=INF].role"/>
</mapping>
</element>
<element id="AllergyIntolerance.lastOccurrence">
<path value="AllergyIntolerance.lastOccurrence"/>
<short value="Date(/time) of last known occurrence of a reaction"/>
<definition
value="Represents the date and/or time of the last known occurrence of a reaction event."/>
<comment
value="This date may be replicated by one of the Onset of Reaction dates. Where a textual representation of the date of last occurrence is required e.g. 'In Childhood, '10 years ago' the Comment element should be used."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.lastOccurrence"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="dateTime"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="outBoundRelationship[typeCode=SUBJ].target[classCode=OBS, moodCode=EVN, code <= CommonClinicalObservationType, value <= ObservationValue (Reaction Type)].effectiveTime"/>
</mapping>
</element>
<element id="AllergyIntolerance.note">
<path value="AllergyIntolerance.note"/>
<short value="Additional text not captured in other fields"/>
<definition
value="Additional narrative about the propensity for the Adverse Reaction, not captured in other fields."/>
<comment
value="For example: including reason for flagging a seriousness of 'High Risk'; and instructions related to future exposure or administration of the substance, such as administration within an Intensive Care Unit or under corticosteroid cover. The notes should be related to an allergy or intolerance as a condition in general and not related to any particular episode of it. For episode notes and descriptions, use AllergyIntolerance.event.description and AllergyIntolerance.event.notes."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance.note"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Annotation"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="N/A"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="Act"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="subjectOf.observationEvent[code="annotation"].value"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction">
<path value="AllergyIntolerance.reaction"/>
<short value="Adverse Reaction Events linked to exposure to substance"/>
<definition
value="Details about each adverse reaction event linked to exposure to the identified substance."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance.reaction"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="BackboneElement"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="true"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="outBoundRelationship[typeCode=SUBJ].target[classCode=OBS, moodCode=EVN, code <= CommonClinicalObservationType, value <= ObservationValue (Reaction Type)]"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.id">
<path value="AllergyIntolerance.reaction.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>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.extension">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="normative"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
<valueCode value="4.0.0"/>
</extension>
<path value="AllergyIntolerance.reaction.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 manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension."/>
<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>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.modifierExtension">
<path value="AllergyIntolerance.reaction.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 manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.
Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself)."/>
<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](http://hl7.org/fhir/R4/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>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<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()"/>
<xpath
value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
<source value="http://hl7.org/fhir/StructureDefinition/Extension"/>
</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>
<mapping>
<identity value="rim"/>
<map value="N/A"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.substance">
<path value="AllergyIntolerance.reaction.substance"/>
<short
value="Specific substance or pharmaceutical product considered to be responsible for event"/>
<definition
value="Identification of the specific substance (or pharmaceutical product) considered to be responsible for the Adverse Reaction event. Note: the substance for a specific reaction may be different from the substance identified as the cause of the risk, but it must be consistent with it. For instance, it may be a more specific substance (e.g. a brand medication) or a composite product that includes the identified substance. It must be clinically safe to only process the 'code' and ignore the 'reaction.substance'. If a receiving system is unable to confirm that AllergyIntolerance.reaction.substance falls within the semantic scope of AllergyIntolerance.code, then the receiving system should ignore AllergyIntolerance.reaction.substance."/>
<comment
value="Coding of the specific substance (or pharmaceutical product) with a terminology capable of triggering decision support should be used wherever possible. The 'code' element allows for the use of a specific substance or pharmaceutical product, or a group or class of substances. In the case of an allergy or intolerance to a class of substances, (for example, "penicillins"), the 'reaction.substance' element could be used to code the specific substance that was identified as having caused the reaction (for example, "amoxycillin"). Duplication of the value in the 'code' and 'reaction.substance' elements is acceptable when a specific substance has been recorded in 'code'."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.reaction.substance"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="CodeableConcept"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="SubstanceCode"/>
</extension>
<strength value="preferred"/>
<description
value="Codes defining the type of the substance (including pharmaceutical products)."/>
<valueSet
value="https://fhir.hl7.org.uk/ValueSet/UKCore-AllergySubstance"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="CE/CNE/CWE"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="CD"/>
</mapping>
<mapping>
<identity value="orim"/>
<map value="fhir:CodeableConcept rdfs:subClassOf dt:CD"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="outBoundRelationship[typeCode=SAS].target[classCode=SBADM, code <= ExposureCode].participation[typeCode=CSM].role[classCode=ADMM].player[classCode=MAT, determinerCode=KIND, code <= ExposureAgentEntityType]"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.manifestation">
<path value="AllergyIntolerance.reaction.manifestation"/>
<short value="Clinical symptoms/signs associated with the Event"/>
<definition
value="Clinical symptoms and/or signs that are observed or associated with the adverse reaction event."/>
<comment
value="Manifestation can be expressed as a single word, phrase or brief description. For example: nausea, rash or no reaction. It is preferable that manifestation should be coded with a terminology, where possible. The values entered here may be used to display on an application screen as part of a list of adverse reactions, as recommended in the UK NHS CUI guidelines. Terminologies commonly used include, but are not limited to, SNOMED CT or ICD10."/>
<alias value="Symptoms"/>
<alias value="Signs"/>
<min value="1"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance.reaction.manifestation"/>
<min value="1"/>
<max value="*"/>
</base>
<type>
<code value="CodeableConcept"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="Manifestation"/>
</extension>
<strength value="preferred"/>
<description
value="Clinical symptoms and/or signs that are observed or associated with an Adverse Reaction Event."/>
<valueSet
value="https://fhir.hl7.org.uk/ValueSet/UKCore-AllergyManifestation"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="CE/CNE/CWE"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="CD"/>
</mapping>
<mapping>
<identity value="orim"/>
<map value="fhir:CodeableConcept rdfs:subClassOf dt:CD"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="AL1-5"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="code"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.description">
<path value="AllergyIntolerance.reaction.description"/>
<short value="Description of the event as a whole"/>
<definition
value="Text description about the reaction as a whole, including details of the manifestation if required."/>
<comment
value="Use the description to provide any details of a particular event of the occurred reaction such as circumstances, reaction specifics, what happened before/after. Information, related to the event, but not describing a particular care should be captured in the comment field. For example: at the age of four, the patient was given penicillin for strep throat and subsequently developed severe hives."/>
<alias value="Narrative"/>
<alias value="Text"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.reaction.description"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="text"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.onset">
<path value="AllergyIntolerance.reaction.onset"/>
<short value="Date(/time) when manifestations showed"/>
<definition
value="Record of the date and/or time of the onset of the Reaction."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.reaction.onset"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="dateTime"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="AL1-6"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="effectiveTime.low"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.severity">
<path value="AllergyIntolerance.reaction.severity"/>
<short value="mild | moderate | severe (of event as a whole)"/>
<definition
value="Clinical assessment of the severity of the reaction event as a whole, potentially considering multiple different manifestations."/>
<comment
value="It is acknowledged that this assessment is very subjective. There may be some specific practice domains where objective scales have been applied. Objective scales can be included in this model as extensions."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.reaction.severity"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mustSupport value="true"/>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="AllergyIntoleranceSeverity"/>
</extension>
<strength value="required"/>
<description
value="Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations."/>
<valueSet
value="http://hl7.org/fhir/ValueSet/reaction-event-severity|4.0.1"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="inboundRelationship[typeCode=SUBJ].source[classCode=OBS, moodCode=EVN, code=SEV, value <= SeverityObservation (Severity Level)]"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.exposureRoute">
<path value="AllergyIntolerance.reaction.exposureRoute"/>
<short value="How the subject was exposed to the substance"/>
<definition
value="Identification of the route by which the subject was exposed to the substance."/>
<comment
value="Coding of the route of exposure with a terminology should be used wherever possible."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="AllergyIntolerance.reaction.exposureRoute"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="CodeableConcept"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<binding>
<extension
url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName">
<valueString value="RouteOfAdministration"/>
</extension>
<strength value="preferred"/>
<description
value="A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject."/>
<valueSet
value="https://fhir.hl7.org.uk/ValueSet/UKCore-SubstanceOrProductAdministrationRoute"/>
</binding>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="CE/CNE/CWE"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="CD"/>
</mapping>
<mapping>
<identity value="orim"/>
<map value="fhir:CodeableConcept rdfs:subClassOf dt:CD"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="outBoundRelationship[typeCode=SAS].target[classCode=SBADM, code <= ExposureCode].routeCode"/>
</mapping>
</element>
<element id="AllergyIntolerance.reaction.note">
<path value="AllergyIntolerance.reaction.note"/>
<short value="Text about event not captured in other fields"/>
<definition
value="Additional text about the adverse reaction event not captured in other fields."/>
<comment
value="Use this field to record information indirectly related to a particular event and not captured in the description. For example: Clinical records are no longer available, recorded based on information provided to the patient by her mother and her mother is deceased."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="AllergyIntolerance.reaction.note"/>
<min value="0"/>
<max value="*"/>
</base>
<type>
<code value="Annotation"/>
</type>
<condition value="ele-1"/>
<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() > id.count())"/>
<xpath value="@value|f:*|h:div"/>
<source value="http://hl7.org/fhir/StructureDefinition/Element"/>
</constraint>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
<mapping>
<identity value="v2"/>
<map value="N/A"/>
</mapping>
<mapping>
<identity value="rim"/>
<map value="Act"/>
</mapping>
<mapping>
<identity value="rim"/>
<map
value="subjectOf.observationEvent[code="annotation"].value"/>
</mapping>
</element>
</snapshot>
<differential>
<element id="AllergyIntolerance">
<path value="AllergyIntolerance"/>
</element>
<element id="AllergyIntolerance.identifier">
<path value="AllergyIntolerance.identifier"/>
<slicing>
<discriminator>
<type value="pattern"/>
<path value="system"/>
</discriminator>
<rules value="closed"/>
</slicing>
<min value="1"/>
<mustSupport value="true"/>
</element>
<element id="AllergyIntolerance.identifier:CommonResourceIdentifiers">
<path value="AllergyIntolerance.identifier"/>
<sliceName value="CommonResourceIdentifiers"/>
<short value="Common Resource Identifiers"/>
<min value="0"/>
<max value="*"/>
<type>
<code value="Identifier"/>
<profile
value="https://fhir.virtually.healthcare/StructureDefinition/CommonResourceIdentifiers"/>
</type>
</element>
<element id="AllergyIntolerance.patient">
<path value="AllergyIntolerance.patient"/>
<type>
<code value="Reference"/>
<targetProfile
value="https://fhir.virtually.healthcare/StructureDefinition/Patient"/>
</type>
</element>
<element id="AllergyIntolerance.patient.identifier">
<path value="AllergyIntolerance.patient.identifier"/>
<type>
<code value="Identifier"/>
<profile
value="https://fhir.virtually.healthcare/StructureDefinition/nhs-numbers"/>
</type>
</element>
</differential>
</StructureDefinition>