Among the wide range of standards available for the integration and interoperability of medical information systems is data exchange or messaging standards. The purpose is to broadly provide instructions or specifications for the structure, format, and elements for data pertaining to health related operations that involve clinical, financial and administrative data. More specifically messaging standards defines the relationship among data elements for structuring data as they are interchanged. 7.1.1 HL7. V3 - Health Level 7 Messaging Standards Version 3
The HL7 version 3 standard has the aim to support all healthcare workflows. Development of version 3 started around 1995, resulting in an initial standard publication in 2005. HL7 V3 is based on consensus standards, developed by volunteers who come from countries around the world to undertake practical informatics. They also welcome new participants and are open to suggestions with the development of the standard that involves a balloting process. Subsequently, once requirements are approved a collection of message formats and related clinical standards that loosely define an ideal presentation of clinical information are compiled and together the standards provide a framework in which data may be exchanged. Furthermore, the use of HL7 standards require membership to the organization and licensing fee.
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For instance, HL7 V3 builds upon much of what was learned during the development of its predecessor HL7 V2, but without the burden of V2 legacy issues. Nonetheless, HL7 V3 remains in the infant maturity stage, especially within the United States, where HL7 V2 is the preferred