Abstract
HL7 v2 is the most widely used healthcare interchange format. Messages are sent in response to trigger events. Messages comprise a set of segments, defined using an abstract message syntax table. Segments contain fields and fields contain components; components may contain sub-components, which are separated by delimiters. Segments are specified in segment definition Tables. Z-segments are locally defined. Data types are the basic building blocks in each element. Some are simple, others are complex. Codes are defined using tables.
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Health Level Seven Standard Version 2.9—An Application Protocol for Electronic Data Exchange in Healthcare Environments. ANSI /HL7 V2.9–2019
Further Reading
The following books only cover HL7 v2.
Bhagat R, Hui C. HL7 For Busy Professionals: Your No Sweat Guide to Understanding HL7. Anchiove; 2015.
Heitmann K, Bloebel B, Dudeck J. HL7 Communication standard in medicine, short introduction and information: Verlag Alexander Mönch; 1999.
Henderson M. HL7 Messaging, Version 2. 2nd ed: O’Tech Inc; 2007.
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Benson, T., Grieve, G. (2021). HL7 Version 2 . In: Principles of Health Interoperability. Health Information Technology Standards. Springer, Cham. https://doi.org/10.1007/978-3-030-56883-2_12
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DOI: https://doi.org/10.1007/978-3-030-56883-2_12
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