The advantages of using HTML as a display segment include: The message types such as the Referral Message detailed in AS4700.6 defer to the Diagnostics standard for guidance in this area and the guidance specified in this document is also relevant to these messages on this basis. Currently no guidance is given as to what features the HTML can use and this technical report aims to provide this guidance.
It is possible to send a single OBX segment of this type however it is recommended that the same data is also sent in an atomic format. The HTML display segment should be the last OBX segment and is identified by a OBX-3 Observation Identifier of "HTML^Display Segment as HTML^AUSPDI". The current Australia Diagnostics standard specifies HTML as a possible display segment for use by senders to transmit a display version of the data in the ORU message. This document represents a constraint on the HTML features that can be used for this purpose and specification of conventions to access embedded binary data such as clinical images.
Over that last 15 years the availability of high quality components for the display of HTML encoded documents is become ubiquitous and quite standards compliant and represents a good choice for a display format for clinical documents where a higher fidelity display is desired. This can create resistance to the adoption of HL7V2 by new players and is a barrier to more widespread adoption. This has been the case for many years and it works well as a basic level, but the richness and control of the display of this data has not kept pace with what users expect. The use of HL7V2 for transmitting clinical data occurs on a massive scale worldwide. A2.3 Use of XHTML as display segmentsĪ standards based Mechanism for using HTML as display segments in HL7V2 messages Note: If more than one display segment is used then each display type must contain the same report detail. This appendix provides detail on the display format types of XHTML and PDF. Although there are a number of allowed display formats (XHTML, RTF, PDF or HL7 Formatted text - FT) there isn't a prescribed format to be used. The display format type used will depend on the display features required. The display segment is mandatory (refer to conformance point HL7au:000008) to assure the contents of the pathology report be interpreted in the context that the pathology provider intended.
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