v2+ Vocabulary
0.3.0 - Working Draft to present the concept ideas (FO)

v2+ Vocabulary - Local Development build (v0.3.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

CodeSystem: Encoding (2.9 - 1.0.1) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/encodingV101 Version: 1.0.1
Active as of 2025-08-05 Computable Name: EncodingV101
Other Identifiers: OID:2.16.840.1.113883.18.185

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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.

This Code system is referenced in the content logical definition of the following value sets:

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescription
version introduced versionIntroduced http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced string version when was this code introduced
version deprecated versionDeprecated http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated string version when was this code deprecated
status status http://hl7.org/fhir/concept-properties#status code A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment, to suppress IG-publisher warning, to be replaced with standard later comment http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment string A string that provides additional detail pertinent to the use or understanding of the concept
usage usage http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage string usage notes for this code
modified modified http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified dateTime date of last modification

Concepts

This case-sensitive code system http://terminology.hl7.org/v2plusvocab/CodeSystem/encodingV101 defines the following codes:

CodeDisplayDefinitionversion introducedcomment, to suppress IG-publisher warning, to be replaced with standard latermodifiedDeutsch (German, de)
A no encoding No encoding - data are displayable ASCII characters. 2.3 2015-07-13 keine Kodierung
Base64 Encoding as defined by MIME (Multipurpose Internet Mail Extensions) standard RFC 1521. 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 lower case alphabetic characters, digits “0” through “9”, “+”, “/”, and “=”. 2.3 The Request For Comment (RFC) 1521 standard is available at: http://www.ietf.org/rfc/rfc1521.txt 2015-07-13
Hex Hexadecimal encoding Hexadecimal encoding - consecutive pairs of hexadecimal digits represent consecutive single octets. 2.3 2015-07-13