Considers hepatitis C becoming manifest in a veteran to a degree of ten percent or more to be service-connected, and therefore compensable under veterans' disability provisions, notwithstanding that there is no record of evidence of such illness during the period of such service, as long as it is shown that during such service the veteran experienced: (1) a blood transfusion before December 31, 1992; (2) blood exposure on or through skin or a mucous membrane; (3) hemodialysis; (4) a needle-stick accident or medical event involving a needle, not due to willful misconduct; (5) unexplained liver disease; (6) an unexplained liver dysfunction value or test; or (7) working in a health-care position or specialty.