NHS North West Genomics
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: Variant - ctDNA Intragenic Copy Number Variant (FBN1)

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<Observation xmlns="http://hl7.org/fhir">
  <id value="ctdna9737383222-icnv1"/>
  <meta>
    <profile
             value="https://fhir.nwgenomics.nhs.uk/StructureDefinition/Variant"/>
  </meta>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: Observation ctdna9737383222-icnv1</b></p><a name="ctdna9737383222-icnv1"> </a><a name="hcctdna9737383222-icnv1"> </a><div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%"><p style="margin-bottom: 0px"/><p style="margin-bottom: 0px">Profile: <a href="StructureDefinition-Variant.html">Variant (Observation)</a></p></div><p><b>identifier</b>: ctdna9737383222-icnv1</p><p><b>status</b>: Final</p><p><b>category</b>: <span title="Codes:{http://terminology.hl7.org/CodeSystem/v2-0074 GE}">Genetics</span>, <span title="Codes:{http://terminology.hl7.org/CodeSystem/observation-category laboratory}">Laboratory</span></p><p><b>code</b>: <span title="Codes:{http://loinc.org 69548-6}">Genetic variant assessment</span></p><p><b>subject</b>: <a href="Patient-Patient-Leeds.html">Rob LEEDS (official) Male, DoB: 1978-01-17 ( Medical record number)</a></p><p><b>effective</b>: 2026-07-14 15:59:16+0000</p><p><b>performer</b>: <a href="PractitionerRole-59577028-8fcc-4554-8b43-988561d41d9c.html">PractitionerRole</a></p><p><b>value</b>: <span title="Codes:{http://loinc.org LA9633-4}">Present</span></p><p><b>method</b>: <span title="Codes:{http://loinc.org LA26398-0}">Sequencing</span></p><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 83005-9}">Variant category</span></p><p><b>value</b>: <span title="Codes:{https://fhir.nwgenomics.nhs.uk/CodeSystem/IGeneVariantCategory ICNV}">Intragenic Copy Number Variant</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 48018-6}">Gene studied [ID]</span></p><p><b>value</b>: <span title="Codes:{http://www.genenames.org HGNC:3603}">FBN1</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 48002-0}">Genomic source class [Type]</span></p><p><b>value</b>: <span title="Codes:{http://loinc.org LA6683-2}">Germline</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 48013-7}">Genomic reference sequence [ID]</span></p><p><b>value</b>: <span title="Codes:{http://www.ncbi.nlm.nih.gov/refseq NC_000015.9}">NC_000015.9</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 92822-6}">Genomic coordinate system [Type]</span></p><p><b>value</b>: <span title="Codes:{http://loinc.org LA30102-0}">1-based character counting</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 69547-8}">Genomic ref allele [ID]</span></p><p><b>value</b>: C</p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 69551-0}">Genomic alt allele [ID]</span></p><p><b>value</b>: &lt;DEL&gt;</p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 48019-4}">DNA change type</span></p><p><b>value</b>: <span title="Codes:{http://www.sequenceontology.org SO:0001019}">copy_number_variation</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 51958-7}">Transcript reference sequence [ID]</span></p><p><b>value</b>: <span title="Codes:{http://www.ncbi.nlm.nih.gov/refseq NM_000138.4}">NM_000138.4</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 48004-6}">DNA change (c.HGVS)</span></p><p><b>value</b>: <span title="Codes:{http://varnomen.hgvs.org NM_000138.4(FBN1):exon13_to_exon15del}">NM_000138.4(FBN1):exon13_to_exon15del</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 81290-9}">Genomic DNA change (gHGVS)</span></p><p><b>value</b>: <span title="Codes:{http://varnomen.hgvs.org g.48797222_48802366del}">g.48797222_48802366del</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 53037-8}">Genetic variation clinical significance [Imp]</span></p><p><b>value</b>: <span title="Codes:">Pathogenic</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 94186-4}">Origin of germline genetic variant [Type]</span></p><p><b>value</b>: <span title="Codes:{http://loinc.org LA26320-4}">Maternal</span></p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 81302-2}">Structural variant inner start and end</span></p><p><b>value</b>: 48797221-48802366</p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 81258-6}">Sample variant allelic frequency [NFr]</span></p><p><b>value</b>: 0.33 decimal</p></blockquote><blockquote><p><b>component</b></p><p><b>code</b>: <span title="Codes:{http://loinc.org 82155-3}">Genomic structural variant copy number</span></p><p><b>value</b>: 1 1<span style="background: LightGoldenRodYellow"> (Details: UCUM  code1 = '1')</span></p></blockquote></div>
  </text>
  <identifier>
    <value value="ctdna9737383222-icnv1"/>
  </identifier>
  <status value="final"/>
  <category>
    <coding>
      <system value="http://terminology.hl7.org/CodeSystem/v2-0074"/>
      <code value="GE"/>
      <display value="Genetics"/>
    </coding>
  </category>
  <category>
    <coding>
      <system
              value="http://terminology.hl7.org/CodeSystem/observation-category"/>
      <code value="laboratory"/>
    </coding>
  </category>
  <code>
    <coding>
      <system value="http://loinc.org"/>
      <code value="69548-6"/>
    </coding>
  </code>
  <subject>🔗 
    <reference value="Patient/Patient-Leeds"/>
  </subject>
  <effectiveDateTime value="2026-07-14T15:59:16+00:00"/>
  <performer>🔗 
    <reference value="PractitionerRole/59577028-8fcc-4554-8b43-988561d41d9c"/>
  </performer>
  <valueCodeableConcept>
    <coding>
      <system value="http://loinc.org"/>
      <code value="LA9633-4"/>
      <display value="Present"/>
    </coding>
  </valueCodeableConcept>
  <method>
    <coding>
      <system value="http://loinc.org"/>
      <code value="LA26398-0"/>
      <display value="Sequencing"/>
    </coding>
  </method>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="83005-9"/>
        <display value="Variant category"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system
                value="https://fhir.nwgenomics.nhs.uk/CodeSystem/IGeneVariantCategory"/>
        <code value="ICNV"/>
        <display value="Intragenic Copy Number Variant"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="48018-6"/>
        <display value="Gene studied [ID]"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://www.genenames.org"/>
        <code value="HGNC:3603"/>
        <display value="FBN1"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="48002-0"/>
        <display value="Genomic source class [Type]"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://loinc.org"/>
        <code value="LA6683-2"/>
        <display value="Germline"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="48013-7"/>
        <display value="Genomic reference sequence [ID]"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://www.ncbi.nlm.nih.gov/refseq"/>
        <code value="NC_000015.9"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="92822-6"/>
        <display value="Genomic coordinate system [Type]"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://loinc.org"/>
        <code value="LA30102-0"/>
        <display value="1-based character counting"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="69547-8"/>
        <display value="Genomic ref allele [ID]"/>
      </coding>
    </code>
    <valueString value="C"/>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="69551-0"/>
        <display value="Genomic alt allele [ID]"/>
      </coding>
    </code>
    <valueString value="&lt;DEL&gt;"/>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="48019-4"/>
        <display value="DNA change type"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://www.sequenceontology.org"/>
        <code value="SO:0001019"/>
        <display value="copy_number_variation"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="51958-7"/>
        <display value="Transcript reference sequence [ID]"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://www.ncbi.nlm.nih.gov/refseq"/>
        <code value="NM_000138.4"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="48004-6"/>
        <display value="DNA change (c.HGVS)"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://varnomen.hgvs.org"/>
        <code value="NM_000138.4(FBN1):exon13_to_exon15del"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="81290-9"/>
        <display value="Genomic DNA change (gHGVS)"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://varnomen.hgvs.org"/>
        <code value="g.48797222_48802366del"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="53037-8"/>
        <display value="Genetic variation clinical significance [Imp]"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <text value="Pathogenic"/>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="94186-4"/>
        <display value="Origin of germline genetic variant [Type]"/>
      </coding>
    </code>
    <valueCodeableConcept>
      <coding>
        <system value="http://loinc.org"/>
        <code value="LA26320-4"/>
        <display value="Maternal"/>
      </coding>
    </valueCodeableConcept>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="81302-2"/>
        <display value="Structural variant inner start and end"/>
      </coding>
    </code>
    <valueRange>
      <low>
        <value value="48797221"/>
      </low>
      <high>
        <value value="48802366"/>
      </high>
    </valueRange>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="81258-6"/>
        <display value="Sample variant allelic frequency [NFr]"/>
      </coding>
    </code>
    <valueQuantity>
      <value value="0.33"/>
      <unit value="decimal"/>
      <system value="http://unitsofmeasure.org"/>
    </valueQuantity>
  </component>
  <component>
    <code>
      <coding>
        <system value="http://loinc.org"/>
        <code value="82155-3"/>
        <display value="Genomic structural variant copy number"/>
      </coding>
    </code>
    <valueQuantity>
      <value value="1"/>
      <system value="http://unitsofmeasure.org"/>
      <code value="1"/>
    </valueQuantity>
  </component>
</Observation>