; and (v) take into account reasonable costs for determining the payment rate consistent with paragraph (2)(B). . (b) Inclusion of network fee as an allowable cost Section 1881(b)(14) of the Social Security Act ( 42 U.S.C. 1395rr(b)(14) ), as amended by subsection (a), is amended by adding at the end the following new subparagraph: (K) Not later than January 1, 2020, the Secretary shall amend the ESRD facility cost report to include the per treatment network fee (as described in paragraph (7)) as an allowable cost or offset to revenue. . (c) Determination of productivity adjustment Section 1886(b)(3)(B)(xi) of the Social Security Act ( 42 U.S.C. 1395ww(b)(3)(B)(xi) ) is amended— (1) in subclause (I), by striking For 2012 and inserting Subject to subclause (IV), for 2012