This significantly expanded and newest edition of the bestselling HIMSS Dictionary of Health Information and Technology Terms Acronyms and Organizations has been developed and extensively reviewed by a robust team of industry experts. The fifth edition of this dictionary serves as a quick reference for students health information and technology (IT) professionals and healthcare executives to better navigate the ever-growing health IT field. This valuable resource includes more than 3 400 definitions organizations credentials acronyms and references. Definitions of terms for the health IT medical and nursing informatics fields are updated and included. This fifth edition also includes an acronyms list with cross references to current definitions and a list of health IT-related associations and organizations including contact information mission statements and web addresses. Academic and professional certification credentials are also included. As a mission driven non-profit HIMSS offers a unique depth and breadth of expertise in health innovation public policy workforce development research and analytics to advise global leaders stakeholders and influencers on best practices in health information and technology. Through our innovation companies HIMSS delivers key insights education and engaging events to healthcare providers governments and market suppliers ensuring they have the right information at the point of decision. As an association HIMSS encompasses more than 72 000 individual members and 630 corporate members. We partner with hundreds of providers academic institutions and health services organizations on strategic initiatives that leverage innovative information and technology. Together we work to improve health access and the quality and cost-effectiveness of healthcare. HIMSS Vision Better health through information and technology. HIMSS Mission Globally lead endeavors optimizing health engagements and care outcomes through information and technology.