<StructureDefinition xmlns="http://hl7.org/fhir">
  <meta>
    <lastUpdated value="2017-09-30T17:17:56.785+08:00" />
  </meta>
  <url value="StructureDefinition/Obs-CopyNumberEvent" />
  <name value="Obs-CopyNumberEvent" />
  <status value="draft" />
  <date value="2017-09-30T17:13:18.246+08:00" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <snapshot />
  <differential>
    <element id="Observation.component">
      <path value="Observation.component" />
      <slicing>
        <description value="" />
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.component:Component">
      <path value="Observation.component" />
      <sliceName value="Component" />
      <max value="1" />
    </element>
    <element id="Observation.component:Component.code.coding">
      <path value="Observation.component.code.coding" />
      <slicing>
        <description value="URL = http://hl7.org/fhir/StructureDefinition/observation-geneticsCopyNumberEvent&#xD;&#xA;CopyNumberEvent: A variation that increases or decreases the copy number of a given region ([SO:0001019](http://www.sequenceontology.org/browser/current_svn/term/SO:0001019)). Values: amplification/deletion/LOH." />
        <rules value="open" />
      </slicing>
      <fixedCoding>
        <system value="http://loinc.org" />
        <code value="amplification" />
        <display value="deletion" />
      </fixedCoding>
    </element>
    <element id="Observation.component:Component.value[x]:valueCodeableConcept">
      <path value="Observation.component.valueCodeableConcept" />
      <sliceName value="valueCodeableConcept" />
      <type>
        <code value="CodeableConcept" />
      </type>
    </element>
    <element id="valueCodeableConcept:valueCodeableConcept.coding">
      <path value="Observation.component.valueCodeableConcept.coding" />
      <slicing>
        <description value="" />
        <rules value="open" />
      </slicing>
      <max value="1" />
      <fixedCoding>
        <code value="amp" />
        <display value="amplificaiton" />
      </fixedCoding>
    </element>
  </differential>
</StructureDefinition>