{
  "resourceType" : "CodeSystem",
  "id" : "encodings",
  "language" : "en",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem encodings</b></p><a name=\"encodings\"> </a><a name=\"hcencodings\"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/uv/molecular-definition-data-types/CodeSystem/encodings</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\">nucleotide-dna-1letter-unambiguous<a name=\"encodings-nucleotide-dna-1letter-unambiguous\"> </a></td><td>Nucleotide DNA 1-letter Unambiguous Symbols</td><td>Single-letter unambiguous symbols for DNA residues (G, A, T, C)</td></tr><tr><td style=\"white-space:nowrap\">nucleotide-rna-1letter-unambiguous<a name=\"encodings-nucleotide-rna-1letter-unambiguous\"> </a></td><td>Nucleotide RNA 1-letter Unambiguous Symbols</td><td>Single-letter unambiguous symbols for RNA residues (G, A, U, C)</td></tr><tr><td style=\"white-space:nowrap\">nucleotide-dna-1letter-with-n<a name=\"encodings-nucleotide-dna-1letter-with-n\"> </a></td><td>Nucleotide DNA 1-letter Symbols Including N</td><td>Single-letter symbols for DNA residues, including N for any nucleotide</td></tr><tr><td style=\"white-space:nowrap\">nucleotide-dna-1letter-ambiguous<a name=\"encodings-nucleotide-dna-1letter-ambiguous\"> </a></td><td>Nucleotide DNA 1-letter Ambiguous Symbols</td><td>Single-letter ambiguous symbols for DNA residues including IUPAC codes</td></tr><tr><td style=\"white-space:nowrap\">amino-acid-1letter-unambiguous<a name=\"encodings-amino-acid-1letter-unambiguous\"> </a></td><td>Amino Acid 1-letter Unambiguous Symbols</td><td>Single-letter unambiguous symbols for the 20 common amino acids</td></tr><tr><td style=\"white-space:nowrap\">amino-acid-3letter-unambiguous<a name=\"encodings-amino-acid-3letter-unambiguous\"> </a></td><td>Amino Acid 3-letter Unambiguous Symbols</td><td>Three-letter unambiguous symbols for the 20 common amino acids</td></tr><tr><td style=\"white-space:nowrap\">amino-acid-1letter-ambiguous<a name=\"encodings-amino-acid-1letter-ambiguous\"> </a></td><td>Amino Acid 1-letter Ambiguous Symbols</td><td>Single-letter symbols for amino acids, including ambiguous symbols</td></tr><tr><td style=\"white-space:nowrap\">amino-acid-3letter-ambiguous<a name=\"encodings-amino-acid-3letter-ambiguous\"> </a></td><td>Amino Acid 3-letter Ambiguous Symbols</td><td>Three-letter symbols for amino acids, including ambiguous symbols</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/encodings",
  "version" : "1.0.0-ballot1",
  "name" : "Encodings",
  "title" : "Encodings",
  "status" : "draft",
  "experimental" : false,
  "date" : "2026-03-24T17:16:29+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" : "CodeSystem listing the different encodings for nucleotides and amino acids.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001",
      "display" : "World"
    }]
  }],
  "caseSensitive" : true,
  "content" : "complete",
  "count" : 8,
  "concept" : [{
    "code" : "nucleotide-dna-1letter-unambiguous",
    "display" : "Nucleotide DNA 1-letter Unambiguous Symbols",
    "definition" : "Single-letter unambiguous symbols for DNA residues (G, A, T, C)"
  },
  {
    "code" : "nucleotide-rna-1letter-unambiguous",
    "display" : "Nucleotide RNA 1-letter Unambiguous Symbols",
    "definition" : "Single-letter unambiguous symbols for RNA residues (G, A, U, C)"
  },
  {
    "code" : "nucleotide-dna-1letter-with-n",
    "display" : "Nucleotide DNA 1-letter Symbols Including N",
    "definition" : "Single-letter symbols for DNA residues, including N for any nucleotide"
  },
  {
    "code" : "nucleotide-dna-1letter-ambiguous",
    "display" : "Nucleotide DNA 1-letter Ambiguous Symbols",
    "definition" : "Single-letter ambiguous symbols for DNA residues including IUPAC codes"
  },
  {
    "code" : "amino-acid-1letter-unambiguous",
    "display" : "Amino Acid 1-letter Unambiguous Symbols",
    "definition" : "Single-letter unambiguous symbols for the 20 common amino acids"
  },
  {
    "code" : "amino-acid-3letter-unambiguous",
    "display" : "Amino Acid 3-letter Unambiguous Symbols",
    "definition" : "Three-letter unambiguous symbols for the 20 common amino acids"
  },
  {
    "code" : "amino-acid-1letter-ambiguous",
    "display" : "Amino Acid 1-letter Ambiguous Symbols",
    "definition" : "Single-letter symbols for amino acids, including ambiguous symbols"
  },
  {
    "code" : "amino-acid-3letter-ambiguous",
    "display" : "Amino Acid 3-letter Ambiguous Symbols",
    "definition" : "Three-letter symbols for amino acids, including ambiguous symbols"
  }]
}