HL7 v2.3.1 Vocabulary
0.1.0 - ci-build

HL7 v2.3.1 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v231/ and changes regularly. See the Directory of published versions

## : MIME base64 encoding Characters (2.3.1 - 1.0.0) - JSON Representation

Active as of 2026-01-27

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    {
      "resourceType" : "CodeSystem",
      "id" : "mimeBase64EncodingCharacters",
      "text" : {
        "status" : "generated",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><ul><li>Include all codes defined in <a href=\"CodeSystem-mimeBase64EncodingCharacters.html\"><code>http://terminology.hl7.org/v2plusvocab/CodeSystem/mimeBase64EncodingCharacters</code></a></li></ul></div>"
      },
      "extension" : [
        {
          "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-v2versionCreated",
          "valueString" : "2.3.1"
        },
        {
          "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-versionHistory",
          "valueString" : "generate correct history somehow"
        },
        {
          "url" : "http://terminology.hl7.org/v2plusvocab/StructureDefinition/codesystem-tableNo",
          "valueString" : "0290"
        }
      ],
      "url" : "http://terminology.hl7.org/v2plusvocab/CodeSystem/mimeBase64EncodingCharacters",
      "identifier" : [
        {
          "system" : "urn:ietf:rfc:3986",
          "value" : "urn:oid:2.16.840.1.113883.18.180"
        }
      ],
      "version" : "1.0.0",
      "name" : "MimeBase64EncodingCharacters",
      "title" : "MIME base64 encoding Characters (2.3.1 - 1.0.0)",
      "status" : "active",
      "experimental" : true,
      "date" : "2026-01-27T19:22:40+00:00",
      "publisher" : "HL7/FO",
      "contact" : [
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          "telecom" : [
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              "system" : "url",
              "value" : "http://www.hl7.org"
            }
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        }
      ],
      "description" : "HL7-defined code system of concepts specifying the characters used in the MIME Base 64 encoding mechanism.  These are for reference only, as they are not carried as explicit code values in any HL7 coded field.  This table was published only in releases 2.3, 2.3.1, and 2.4 of the Standard, and was removed thereafter.",
      "copyright" : "HL7 Inc., 2026",
      "caseSensitive" : true,
      "compositional" : false,
      "content" : "complete",
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        },
        {
          "code" : "status",
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          "type" : "code"
        },
        {
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