This page is part of the HL7 Terminology (v5.1.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions 
: AllergyIntoleranceCertainty - XML Representation
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<CodeSystem xmlns="http://hl7.org/fhir">
<id value="reaction-event-certainty"/>
<meta>
<lastUpdated value="2020-04-09T21:10:28.568+00:00"/>
</meta>
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p>This code system <code>http://terminology.hl7.org/CodeSystem/reaction-event-certainty</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">unlikely<a name="reaction-event-certainty-unlikely"> </a></td><td>Unlikely</td><td>There is a low level of clinical certainty that the reaction was caused by the identified substance.</td></tr><tr><td style="white-space:nowrap">likely<a name="reaction-event-certainty-likely"> </a></td><td>Likely</td><td>There is a high level of clinical certainty that the reaction was caused by the identified substance.</td></tr><tr><td style="white-space:nowrap">confirmed<a name="reaction-event-certainty-confirmed"> </a></td><td>Confirmed</td><td>There is a very high level of clinical certainty that the reaction was due to the identified substance, which may include clinical evidence by testing or rechallenge.</td></tr><tr><td style="white-space:nowrap">unknown<a name="reaction-event-certainty-unknown"> </a></td><td>Unknown</td><td>The clinical certainty that the reaction was caused by the identified substance is unknown. It is an explicit assertion that certainty is not known.</td></tr></table></div>
</text>
<url
value="http://terminology.hl7.org/CodeSystem/reaction-event-certainty"/>
<identifier>
<system value="urn:ietf:rfc:3986"/>
<value value="urn:oid:2.16.840.1.113883.4.642.1.1276"/>
</identifier>
<version value="0.1.0"/>
<name value="AllergyIntoleranceCertainty"/>
<title value="AllergyIntoleranceCertainty"/>
<status value="draft"/>
<experimental value="false"/>
<date value="2020-04-09T21:10:28+00:00"/>
<publisher value="HL7 (FHIR Project)"/>
<contact>
<telecom>
<system value="url"/>
<value value="http://hl7.org/fhir"/>
</telecom>
<telecom>
<system value="email"/>
<value value="fhir@lists.hl7.org"/>
</telecom>
</contact>
<description
value="Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event."/>
<caseSensitive value="true"/>
<valueSet
value="http://terminology.hl7.org/ValueSet/reaction-event-certainty"/>
<content value="complete"/>
<concept>
<code value="unlikely"/>
<display value="Unlikely"/>
<definition
value="There is a low level of clinical certainty that the reaction was caused by the identified substance."/>
</concept>
<concept>
<code value="likely"/>
<display value="Likely"/>
<definition
value="There is a high level of clinical certainty that the reaction was caused by the identified substance."/>
</concept>
<concept>
<code value="confirmed"/>
<display value="Confirmed"/>
<definition
value="There is a very high level of clinical certainty that the reaction was due to the identified substance, which may include clinical evidence by testing or rechallenge."/>
</concept>
<concept>
<code value="unknown"/>
<display value="Unknown"/>
<definition
value="The clinical certainty that the reaction was caused by the identified substance is unknown. It is an explicit assertion that certainty is not known."/>
</concept>
</CodeSystem>
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