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

: Nucleotide DNA Symbols - XML Representation

Page standards status: Draft Maturity Level: 0

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="nucleotide-dna"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem nucleotide-dna</b></p><a name="nucleotide-dna"> </a><a name="hcnucleotide-dna"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/uv/molecular-definition-data-types/CodeSystem/nucleotide-dna</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">G<a name="nucleotide-dna-G"> </a></td><td>Guanine</td><td>G</td></tr><tr><td style="white-space:nowrap">A<a name="nucleotide-dna-A"> </a></td><td>Adenine</td><td>A</td></tr><tr><td style="white-space:nowrap">T<a name="nucleotide-dna-T"> </a></td><td>Thymine</td><td>T</td></tr><tr><td style="white-space:nowrap">C<a name="nucleotide-dna-C"> </a></td><td>Cytosine</td><td>C</td></tr><tr><td style="white-space:nowrap">R<a name="nucleotide-dna-R"> </a></td><td>Purine</td><td>G or A</td></tr><tr><td style="white-space:nowrap">Y<a name="nucleotide-dna-Y"> </a></td><td>Pyrimidine</td><td>T or C</td></tr><tr><td style="white-space:nowrap">M<a name="nucleotide-dna-M"> </a></td><td>Amino</td><td>A or C</td></tr><tr><td style="white-space:nowrap">K<a name="nucleotide-dna-K"> </a></td><td>Keto</td><td>G or T</td></tr><tr><td style="white-space:nowrap">S<a name="nucleotide-dna-S"> </a></td><td>Strong interaction (3 H bonds)</td><td>G or C</td></tr><tr><td style="white-space:nowrap">W<a name="nucleotide-dna-W"> </a></td><td>Weak interaction (2 H bonds)</td><td>A or T</td></tr><tr><td style="white-space:nowrap">H<a name="nucleotide-dna-H"> </a></td><td>not-G, H follows G in the alphabet</td><td>A or C or T</td></tr><tr><td style="white-space:nowrap">B<a name="nucleotide-dna-B"> </a></td><td>not-A, B follows A</td><td>G or T or C</td></tr><tr><td style="white-space:nowrap">V<a name="nucleotide-dna-V"> </a></td><td>not-T (not-U), V follows U</td><td>G or C or A</td></tr><tr><td style="white-space:nowrap">D<a name="nucleotide-dna-D"> </a></td><td>not-C, D follows C</td><td>G or A or T</td></tr><tr><td style="white-space:nowrap">N<a name="nucleotide-dna-N"> </a></td><td>Any nucleotide</td><td>G or A or T or C</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/nucleotide-dna"/>
  <version value="1.0.0-ballot1"/>
  <name value="NucleotideDNA"/>
  <title value="Nucleotide DNA Symbols"/>
  <status value="draft"/>
  <experimental value="false"/>
  <date value="2025-09-26T21:26:20+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="Single-letter symbols for DNA residues, including unambiguous, ambiguous, and N symbols."/>
  <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="15"/>
  <concept>
    <code value="G"/>
    <display value="Guanine"/>
    <definition value="G"/>
  </concept>
  <concept>
    <code value="A"/>
    <display value="Adenine"/>
    <definition value="A"/>
  </concept>
  <concept>
    <code value="T"/>
    <display value="Thymine"/>
    <definition value="T"/>
  </concept>
  <concept>
    <code value="C"/>
    <display value="Cytosine"/>
    <definition value="C"/>
  </concept>
  <concept>
    <code value="R"/>
    <display value="Purine"/>
    <definition value="G or A"/>
  </concept>
  <concept>
    <code value="Y"/>
    <display value="Pyrimidine"/>
    <definition value="T or C"/>
  </concept>
  <concept>
    <code value="M"/>
    <display value="Amino"/>
    <definition value="A or C"/>
  </concept>
  <concept>
    <code value="K"/>
    <display value="Keto"/>
    <definition value="G or T"/>
  </concept>
  <concept>
    <code value="S"/>
    <display value="Strong interaction (3 H bonds)"/>
    <definition value="G or C"/>
  </concept>
  <concept>
    <code value="W"/>
    <display value="Weak interaction (2 H bonds)"/>
    <definition value="A or T"/>
  </concept>
  <concept>
    <code value="H"/>
    <display value="not-G, H follows G in the alphabet"/>
    <definition value="A or C or T"/>
  </concept>
  <concept>
    <code value="B"/>
    <display value="not-A, B follows A"/>
    <definition value="G or T or C"/>
  </concept>
  <concept>
    <code value="V"/>
    <display value="not-T (not-U), V follows U"/>
    <definition value="G or C or A"/>
  </concept>
  <concept>
    <code value="D"/>
    <display value="not-C, D follows C"/>
    <definition value="G or A or T"/>
  </concept>
  <concept>
    <code value="N"/>
    <display value="Any nucleotide"/>
    <definition value="G or A or T or C"/>
  </concept>
</CodeSystem>