July 1, 2009

LabCorp Redeems All Outstanding Liquid Yield Option(TM) Notes Due 2021 and $369.1 Million Principal Amount at Maturity of Zero Coupon Convertible Subordinated Notes Due 2021

BURLINGTON, N.C. --(BUSINESS WIRE)--Jul. 1, 2009-- Laboratory Corporation of America® Holdings (LabCorp®) (NYSE:LH) announced today that it has completed the previously announced redemption of all of its outstanding zero coupon subordinated Liquid Yield Option ™ Notes due 2021 ( LYONs ) and $369.1