{
  "resourceType" : "CodeSystem",
  "id" : "encoding",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><ul><li>Include all codes defined in <a href=\"CodeSystem-encoding.html\"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/encoding</code></a></li></ul></div>"
  },
  "extension" : [{
    "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated",
    "valueString" : "2.8.1"
  },
  {
    "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory",
    "valueString" : "generate correct history somehow"
  },
  {
    "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo",
    "valueString" : "0299"
  }],
  "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/encoding",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.18.185"
  },
  {
    "system" : "urn:ietf:rfc:3986",
    "value" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/v2-0299"
  }],
  "version" : "1.0.0",
  "name" : "Encoding",
  "title" : "Encoding (2.8.1 - 1.0.0)",
  "status" : "active",
  "experimental" : true,
  "date" : "2026-03-13T11:11:38+00:00",
  "publisher" : "HL7/FO",
  "contact" : [{
    "name" : "HL7/FO",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org"
    }]
  }],
  "description" : "HL7-defined code system of concept identifying the type of encoding used to represent successive octets of binary data as displayable ASCII characters.  These are defined by IETF; more information may be found at https://www.ietf.org/rfc/rfc1521.txt.  Used in HL7 Version 2.x messaging in the ED datatypes.",
  "copyright" : "HL7 Inc., 2026",
  "caseSensitive" : true,
  "compositional" : false,
  "content" : "complete",
  "property" : [{
    "code" : "versionIntroduced",
    "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced",
    "description" : "version when was this code introduced",
    "type" : "string"
  },
  {
    "code" : "versionDeprecated",
    "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated",
    "description" : "version when was this code deprecated",
    "type" : "string"
  },
  {
    "code" : "status",
    "uri" : "http://hl7.org/fhir/concept-properties#status",
    "description" : "A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired",
    "type" : "code"
  },
  {
    "code" : "comment",
    "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment",
    "description" : "A string that provides additional detail pertinent to the use or understanding of the concept",
    "type" : "string"
  },
  {
    "code" : "usage",
    "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage",
    "description" : "usage notes for this code",
    "type" : "string"
  },
  {
    "code" : "modified",
    "uri" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified",
    "description" : "date of last modification",
    "type" : "dateTime"
  }],
  "concept" : [{
    "code" : "A",
    "display" : "no encoding",
    "definition" : "No encoding - data are displayable ASCII characters.",
    "designation" : [{
      "language" : "de",
      "value" : "keine Kodierung"
    }],
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  },
  {
    "code" : "Base64",
    "display" : "Encoding as defined by MIME (Multipurpose Internet Mail Extensions) standard RFC 1521.",
    "definition" : "Encoding as defined by MIME (Multipurpose Internet Mail Extensions) standard RFC 1521. Four consecutive ASCII characters represent three consecutive octets of binary data. Base64 utilizes a 65-character subset of US-ASCII, consisting of both the upper and",
    "property" : [{
      "code" : "usage",
      "valueString" : "The Request For Comment (RFC) 1521 standard is available at: http://www.ietf.org/rfc/rfc1521.txt"
    },
    {
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  },
  {
    "code" : "Hex",
    "display" : "Hexadecimal encoding",
    "definition" : "Hexadecimal encoding - consecutive pairs of hexadecimal digits represent consecutive single octets.",
    "property" : [{
      "code" : "versionIntroduced",
      "valueString" : "2.3"
    }]
  }]
}