Clinical Document Architecture - Local Development build (v2.0.1-sd-202510-matchbox-patch) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
| Official URL: http://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm | Version: 2.0.1-sd-202510-matchbox-patch | |||
| Draft as of 2025-10-29 | Computable Name: CDACompressionAlgorithm | |||
References
Language: en
http://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithm version 📦2.1.1| Code | Display | Definition | 
| DF | deflate | The deflate compressed data format as specified in RFC 1951 \[http://www.ietf.org/rfc/rfc1951.txt\]. | 
| GZ | gzip | 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). | 
| ZL | zlib | A compressed data format that also uses the deflate algorithm. Specified as RFC 1950 \[http://www.ietf.org/rfc/rfc1952.txt\] | 
| Z | compress | Original UNIX compress algorithm and file format using the LZC algorithm (a variant of LZW). Patent encumbered and less efficient than deflate. | 
Expansion performed internally based on codesystem CompressionAlgorithm v2.1.1 (CodeSystem)
This value set contains 4 concepts
| System | Code | Display (en) - English (English, en) | JSON | XML | 
 http://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithm | DF | deflate | ||
 http://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithm | GZ | gzip | ||
 http://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithm | ZL | zlib | ||
 http://terminology.hl7.org/CodeSystem/v3-CompressionAlgorithm | Z | compress |