PUBLIC LAW 101-508—NOV. 5, 1990 104 STAT. 1388-57 (c) REDUCTION IN PREVAILING CHARGE LEVEL FOR OTHER RADIOL- OGY SERVICES.— (1) IN GENERAL. —In applying part B of title XVIII of the Social Security Act, the prevailing charge for physicians' services, furnished during 1991, which are radiology services may not exceed the fee schedule amount established under section 1834(b) of such Act with respect to such services. (2) EXCEPTION.— Paragraph (1) shall not apply to radiology services which are subject to section 610503) of the Omnibus Budget Reconciliation Act of 1989. (d) REDUCTION IN PAYMENTS FOR TECHNICAL COMPONENTS OF CER- TAIN SCANNING SERVICES. — Section 1834(b)(4) (42 U.S.C. 1395m(b)(4)) is amended by inserting after subparagraph (D) the following new paragraph: "(E) In the case of the technical components of magnetic resonance imaging (MRI) services and computer assisted tomography (CAT) services furnished after December 31, 1990, the amount otherwise payable shall be reduced by 10 percent.". (e) LIMITATION ON ADJUSTMENTS. —For radiologist services furnished during 1991 for which payment is made under section 1834(b) of the Social Security Act— (1) a carrier may not make any adjustment, under section 1842(b)(3)(B) of such Act, in the payment amount for the service under section 1834(b) on the basis that the payment amount is higher than the charge applicable, for a comparable service and under comparable circumstances, to the policyholders and subscribers of the carrier, (2) no payment adjustment may be made under section 1842(b)(8) of such Act, and (3) section 1842(b)(9) of such Act shall not apply. (f) USE OF LOCALITIES. —Section 183403)(1)(B) (42 U.S.C. 1395m03)(l)(B)) is amended by inserting "locality," after "statewide,". (g) TREATMENT OF NUCLEAR MEDICINE PHYSICIANS. — (1) CONTINUATION OF SPECIAL RULE. —Section 6105(b) of the Omnibus Budget Reconciliation Act of 1989 is amended by striking all that follows "Social Security Act" the second place it appears and inserting the following: "beginning April 1, 1990, and ending December 31, 1991, there shall be substituted for the fee schedule otherwise applicable a fee schedule based Va on the fee schedule computed under such section (without regard to this subsection) and % on 101 percent of the 1988 prevailing charge for such services.". (2) ADJUSTED HISTORICAL PAYMENT BASIS. —Section 1848(a)(2)(D) (42 U.S.C. 1395w-4(a)(2)(D)) is amended— (A) in clause (ii) by inserting ", but excluding nuclear medicine services that are subject to section 6105(b) of the Omnibus Budget Reconciliation Act of 1989" after "section 183403)(6))", and (B) by adding at the end the following: "(iii) NUCLEAR MEDICINE SERVICES. —In applying clause (i) in the case of physicians' services which are nuclear medicine services that are subject to section 6105(b) of the Omnibus Budget Reconciliation Act of 1989, there shall be substituted for the weighted aver- 42 USC 1395m note. 42 USC 1395m note. 42 USC 1395m note.