HL7 v2.9 Vocabulary
0.2.0 - ci-build
HL7 v2.9 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 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.v29/ and changes regularly. See the Directory of published versions
| Official URL: http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VSencoding | Version: 1.0.1 | |||
| Active as of 2026-03-13 | Computable Name: Hl7VSencoding | |||
| Other Identifiers: OID:2.16.840.1.113883.21.197, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/ValueSet/v2-0299 | ||||
Copyright/Legal: HL7 Inc., 2026 |
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Concept identifying the type of IETF encoding used to represent successive octets of binary data as displayable ASCII characters.
References
This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)
http://terminology.hl7.org/v2plusvocab/CodeSystem/encoding version 📍1.0.1
Expansion performed internally based on codesystem Encoding (2.9 - 1.0.1) v1.0.1 (CodeSystem)
This value set contains 3 concepts
| System | Code | Display (en) | Definition | JSON | XML |
http://terminology.hl7.org/v2plusvocab/CodeSystem/encoding | A | no encoding | No encoding - data are displayable ASCII characters. | ||
http://terminology.hl7.org/v2plusvocab/CodeSystem/encoding | 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 “=”. | ||
http://terminology.hl7.org/v2plusvocab/CodeSystem/encoding | Hex | Hexadecimal encoding | Hexadecimal encoding - consecutive pairs of hexadecimal digits represent consecutive single octets. |
Explanation of the columns that may appear on this page:
| Level | A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies |
| System | The source of the definition of the code (when the value set draws in codes defined elsewhere) |
| Code | The code (used as the code in the resource instance) |
| Display | The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application |
| Definition | An explanation of the meaning of the concept |
| Comments | Additional notes about how to use the code |