A transitional allowance shall not be considered in applying the limits to costs recognized as reasonable pursuant to the third sentence of subparagraph (A) and subparagraph (L)(i) of
section 1395x(v)(1) of this title, or in determining whether the reasonable cost exceeds the customary charges for a service for purposes of determining the amount to be paid to a provider pursuant to sections 1395f(b) and 1395
l(a)(2) of this title.