Molecular Definition Implementation Guide for Molecular Data Types
1.0.0-ballot1 - ci-build International flag

Molecular Definition Implementation Guide for Molecular Data Types, published by HL7 International / Clinical Genomics. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ballot1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/molecular-definition-data-types/ and changes regularly. See the Directory of published versions

: Strand Orientation - XML Representation

Page standards status: Draft Maturity Level: 0

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="strand-orientation"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem strand-orientation</b></p><a name="strand-orientation"> </a><a name="hcstrand-orientation"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/uv/molecular-definition-data-types/CodeSystem/strand-orientation</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">forward<a name="strand-orientation-forward"> </a></td><td>Forward strand</td><td>5' to 3' for nucleotides or N-to-C for amino acids; also known as positive/plus strand. Single stranded sequences are conventionally represented in forward direction.</td></tr><tr><td style="white-space:nowrap">reverse<a name="strand-orientation-reverse"> </a></td><td>Reverse strand</td><td>3' to 5' orientation; also known as negative/minus strand. Applicable only to double stranded sequences.</td></tr></table></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cg"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="0">
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
        <valueCanonical
                        value="http://hl7.org/fhir/uv/molecular-definition-data-types/ImplementationGuide/hl7.fhir.uv.molecular-definition-data-types"/>
      </extension>
    </valueInteger>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="draft">
      <extension
                 url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
        <valueCanonical
                        value="http://hl7.org/fhir/uv/molecular-definition-data-types/ImplementationGuide/hl7.fhir.uv.molecular-definition-data-types"/>
      </extension>
    </valueCode>
  </extension>
  <url
       value="http://hl7.org/fhir/uv/molecular-definition-data-types/CodeSystem/strand-orientation"/>
  <version value="1.0.0-ballot1"/>
  <name value="StrandOrientation"/>
  <title value="Strand Orientation"/>
  <status value="draft"/>
  <experimental value="false"/>
  <date value="2025-09-05T20:30:49+00:00"/>
  <publisher value="HL7 International / Clinical Genomics"/>
  <contact>
    <name value="HL7 International / Clinical Genomics"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/clingenomics"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="cg@lists.HL7.org"/>
    </telecom>
  </contact>
  <description
               value="Orientation of molecular sequences, indicating directionality for nucleotides (5' to 3' or 3' to 5') or amino acids (N to C terminus)"/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="2"/>
  <concept>
    <code value="forward"/>
    <display value="Forward strand"/>
    <definition
                value="5' to 3' for nucleotides or N-to-C for amino acids; also known as positive/plus strand. Single stranded sequences are conventionally represented in forward direction."/>
  </concept>
  <concept>
    <code value="reverse"/>
    <display value="Reverse strand"/>
    <definition
                value="3' to 5' orientation; also known as negative/minus strand. Applicable only to double stranded sequences."/>
  </concept>
</CodeSystem>