(a) PAYMENT CLARIFICATION- Section 1834(g) (42 U.S.C. 1395m(g)) is amended by adding at the end the following new paragraph:???(4) NO BENEFICIARY COST-SHARING FOR CLINICAL DIAGNOSTIC LABORATORY SERVICES- No coinsurance, deductible, copayment, or other cost sharing otherwise applicable under this part shall apply with respect to clinical diagnostic laboratory services furnished as an outpatient cri