N.Y. Comp. Codes R. & Regs. tit. 10, § 86-5.11
(b) To the allowable basic rate based on actual LTHHCP cost, there shall be added a factor to adjust allowable costs during the effective period of the cost-based reimbursement rate. Such adjustments shall not be made to rates based on budgeted costs. This adjustment shall be determined as follows:
(1) The elements of a long-term home health care program's cost shall be weighted based upon data for the following categories: