Cord Blood Stem Cell Act of 2003 - Amends the Public Health Service Act to direct the Secretary of Health and Human Services, acting through the Administrator of the Health Resources and Services Administration, to enter into contracts with qualified cord blood stem cell banks to assist in the establishment, provision, and maintenance of a National Network of Cord Blood Stem Cell Banks. Lists the purposes of qualifying donor banks and requirements qualifying donor banks must meet.
Directs the Secretary, acting through the Administrator, to establish as part of the Network a National Cord Blood Stem Cell Registry. Sets forth the functions of the Registry, which shall include: (1) operating a system for identifying, acquiring, and distributing donated units or cord blood; and (2) maintaining a database with certain information, including the clinical outcomes of all transplantations related to the Network.