The National Uniform Claim Committee approved a request from the AAN for new taxonomy codes for diagnostic neuroimaging. New listings for Diagnostic Neuroimaging are located under both Psychiatry & Neurology and Radiology. The codes were released January 1, 2007, and are effective April 1, 2007. To view the health care provider taxonomy code set, visit www.wpc-edi.com/taxonomy. Providers include a taxonomy code on the national provider identifier (NPI) application.