An XSLT stylesheet is used to render or display data (usually in HTML format) contained within an XML document. XSLT stands for Extensible Stylesheet Transformations. In the healthcare industry XSLT stylesheets are used to display health data (within a Patient Portal or EHR) contained within a CCD or CCDA document.
An XSLT stylesheet is code written in HTML and XML. The XSLT code is programed to reference specific data elements (using XPATH) within an XML document like a CCD. This powerful language gives each user of a CCD the unique ability to display only the health data contained within a CCD that is pertinent to them.
To learn more about XSLT W3Schools has a good tutorial on XSLT: http://www.w3schools.com/xsl/default.asp
