NIH Undiagnosed Diseases Program (UDP)

The National Institutes of Health (NIH) Undiagnosed Diseases Program (UDP) is part of the Undiagnosed Disease Network (UDN). The UDP was organized by the National Human Genome Research Institute (NHGRI), the NIH Office of Rare Diseases Research (ORDR) and the NIH Clinical Center initially in 2008. The UDN was funded by the NIH Common Fund from 2013-2022.