This wiki has undergone a migration to Confluence found Here
<meta name="googlebot" content="noindex">

Simplify Graphic Referencing

From HL7Wiki
Jump to navigation Jump to search

Return to SDTC page; Return to CDA R3 Formal Proposals page.

See CDA R3 Formal Proposals for instructions on using this form. Failure to adhere to these instructions may result in delays. Editing of formal proposals is restricted to the submitter and SDTC co-chairs. Other changes will be undone. Comments can be captured in the associated discussion page.

(This is a template. Do not edit! Copy and paste source into to a new page)

(An announcement of this proposal must be submitted to the Structured Documents list to be formally submitted.)

Submitted by: Rick Geimer Revision date: 2010-05-05
Submitted date: 2010-05-05 Change request ID: <<Change Request ID>>


The method for adding external graphics to CDA documents is quite cumbersome for cases where a user just wants to add an image without defining participants, etc. It is necessary to define an observationMedia element, which is then referenced from the narrative block as follows:

<text>Erythematous rash, palmar surface, left index finger.
     <renderMultiMedia referencedObject="MM1"/>
     <observationMedia classCode="OBS" moodCode="EVN">
         <value mediaType="image/gif">
             <reference value="lefthand.gif"/>

This is a lot of overhead to just reference a graphic. Also, it requires that all documents containing graphics are, by definition, "level 3" CDA documents (any document with entries is a level 3 document).


  • Allow direct referencing of external graphics in the renderMultiMedia element as follows:
 <renderMultiMedia mediaType="image/gif" value="lefthand.gif"/>

Note: this is not intended as a replacement for observationMedia in cases where participants and other info need to be associated with a graphic. Rather, it provides a shortcut for the simplest case where a user just wishes to reference a graphic, much as they would in HTML.



Recommended Action Items


July 22: Close this one, as it is subsumed by the XHTML proposal.