Clinical Document Architecture
2.0.0-sd - release

This page is part of the CDA: Clinical Document Architecture (v2.0.0-sd: CDA2 - Informative) generated with FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version. For a full list of available versions, see the Directory of published versions

ValueSet: CDACompressionAlgorithm

Official URL: http://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm Version: 2.0.0-sd
Draft as of 2024-05-17 Computable Name: CDACompressionAlgorithm

Type of compression algorithm used - limited to 4 concepts from original CDA definition

References

Logical Definition (CLD)

  • Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithm version 2.1.1
    CodeDisplayDefinition
    DFdeflateThe deflate compressed data format as specified in RFC 1951 \[http://www.ietf.org/rfc/rfc1951.txt\].
    GZgzipA compressed data format that is compatible with the widely used GZIP utility as specified in RFC 1952 \[http://www.ietf.org/rfc/rfc1952.txt\] (uses the deflate algorithm).
    ZLzlibA compressed data format that also uses the deflate algorithm. Specified as RFC 1950 \[http://www.ietf.org/rfc/rfc1952.txt\]
    ZcompressOriginal UNIX compress algorithm and file format using the LZC algorithm (a variant of LZW). Patent encumbered and less efficient than deflate.

 

Expansion

Expansion based on codesystem CompressionAlgorithm v2.1.1 (CodeSystem)

This value set contains 4 concepts.

CodeSystemDisplayDefinition
  DFhttp://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithmdeflate

The deflate compressed data format as specified in RFC 1951 [http://www.ietf.org/rfc/rfc1951.txt].

  GZhttp://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithmgzip

A compressed data format that is compatible with the widely used GZIP utility as specified in RFC 1952 [http://www.ietf.org/rfc/rfc1952.txt] (uses the deflate algorithm).

  ZLhttp://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithmzlib

A compressed data format that also uses the deflate algorithm. Specified as RFC 1950 [http://www.ietf.org/rfc/rfc1952.txt]

  Zhttp://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithmcompress

Original UNIX compress algorithm and file format using the LZC algorithm (a variant of LZW). Patent encumbered and less efficient than deflate.

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