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

• Narrative Content
• XML
• JSON
• TTL

: Nucleotide RNA Symbols - JSON Representation

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{
  "resourceType" : "CodeSystem",
  "id" : "nucleotide-rna",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem nucleotide-rna</b></p><a name=\"nucleotide-rna\"> </a><a name=\"hcnucleotide-rna\"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/uv/molecular-definition-data-types/CodeSystem/nucleotide-rna</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-rna-G\"> </a></td><td>Guanine</td><td>G</td></tr><tr><td style=\"white-space:nowrap\">A<a name=\"nucleotide-rna-A\"> </a></td><td>Adenine</td><td>A</td></tr><tr><td style=\"white-space:nowrap\">U<a name=\"nucleotide-rna-U\"> </a></td><td>Uracil</td><td>U</td></tr><tr><td style=\"white-space:nowrap\">C<a name=\"nucleotide-rna-C\"> </a></td><td>Cytosine</td><td>C</td></tr></table></div>"
  },
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode" : "cg"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger" : 0,
      "_valueInteger" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical" : "http://hl7.org/fhir/uv/molecular-definition-data-types/ImplementationGuide/hl7.fhir.uv.molecular-definition-data-types"
          }
        ]
      }
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode" : "draft",
      "_valueCode" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical" : "http://hl7.org/fhir/uv/molecular-definition-data-types/ImplementationGuide/hl7.fhir.uv.molecular-definition-data-types"
          }
        ]
      }
    }
  ],
  "url" : "http://hl7.org/fhir/uv/molecular-definition-data-types/CodeSystem/nucleotide-rna",
  "version" : "1.0.0-ballot1",
  "name" : "NucleotideRNA",
  "title" : "Nucleotide RNA Symbols",
  "status" : "draft",
  "experimental" : false,
  "date" : "2025-09-26T21:26:20+00:00",
  "publisher" : "HL7 International / Clinical Genomics",
  "contact" : [
    {
      "name" : "HL7 International / Clinical Genomics",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.hl7.org/Special/committees/clingenomics"
        },
        {
          "system" : "email",
          "value" : "cg@lists.HL7.org"
        }
      ]
    }
  ],
  "description" : "Single-letter unambiguous symbols for RNA residues.",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code" : "001",
          "display" : "World"
        }
      ]
    }
  ],
  "caseSensitive" : true,
  "content" : "complete",
  "count" : 4,
  "concept" : [
    {
      "code" : "G",
      "display" : "Guanine",
      "definition" : "G"
    },
    {
      "code" : "A",
      "display" : "Adenine",
      "definition" : "A"
    },
    {
      "code" : "U",
      "display" : "Uracil",
      "definition" : "U"
    },
    {
      "code" : "C",
      "display" : "Cytosine",
      "definition" : "C"
    }
  ]
}