BRISBANE, Calif.--(BUSINESS WIRE)--XDx, Inc., a molecular diagnostics company focused on noninvasive gene expression tests for the monitoring of immune-mediated conditions, today announced that Pierre Cassigneul, president and chief executive officer, is scheduled to present at the J.P. Morgan 28th Annual Healthcare Conference on Wednesday, January 13, 2010 at 3:30 p.m. (PT) at the Westin St. Francis Hotel in San Francisco. This event brings together established healthcare industry leaders, emerging fast-growth companies, innovative technology creators and globally minded service providers. This year more than 300 companies, both public and private, are expected to deliver presentations to over 3,500 investors.