<SearchParameter xmlns="http://hl7.org/fhir">
  <id value="Sequence-coordinate" />
  <url value="http://hl7.org/fhir/SearchParameter/Sequence-coordinate" />
  <name value="coordinate" />
  <status value="draft" />
  <experimental value="false" />
  <date value="2017-04-19T07:44:43+10:00" />
  <publisher value="Health Level Seven International (Clinical Genomics)" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://hl7.org/fhir" />
    </telecom>
  </contact>
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://www.hl7.org/Special/committees/clingenomics/index.cfm" />
    </telecom>
  </contact>
  <code value="coordinate" />
  <base value="Sequence" />
  <type value="composite" />
  <description value="Search parameter for region of the reference DNA sequence string. This will refer to part of a locus or part of a gene where search region will be represented in 1-based system. Since the coordinateSystem can either be 0-based or 1-based, this search query will include the result of both coordinateSystem that contains the equivalent segment of the gene or whole genome sequence. For example, a search for sequence can be represented as `coordinate=1$lt345$gt123`, this means it will search for the Sequence resource on chromosome 1 and with position &gt;123 and &lt;345, where in 1-based system resource, all strings within region 1:124-344 will be revealed, while in 0-based system resource, all strings within region 1:123-344 will be revealed. You may want to check detail about 0-based v.s. 1-based above." />
  <expression value="Sequence.variant" />
  <xpathUsage value="normal" />
  <component>
    <definition>
      <reference value="http://hl7.org/fhir/SearchParameter/Sequence-chromosome" />
    </definition>
    <expression value="%resource.referenceSeq.chromosome" />
  </component>
  <component>
    <definition>
      <reference value="http://hl7.org/fhir/SearchParameter/Sequence-start" />
    </definition>
    <expression value="start" />
  </component>
  <component>
    <definition>
      <reference value="http://hl7.org/fhir/SearchParameter/Sequence-end" />
    </definition>
    <expression value="end" />
  </component>
</SearchParameter>