N.Y. Comp. Codes R. & Regs. tit. 10, § 86-6.5 – Trend factor.

(a) The commissioner shall establish trend factors to project annual increases in the costs of hospice services. Each payment rate for the categories of hospice care, as established pursuant to the provisions of section 86-6.2 of this Subpart, shall be trended each year by the trend factors developed in accordance with the provisions of this section.
(b) The elements of certified home health agencies' costs shall be weighted based upon data for the categories listed below in developing the trend factor that will be applied to the routine and continuous home care rates. The elements of general hospitals' costs shall be weighted based upon data for the categories listed below in developing the trend factor that will be applied to the inpatient and respite care rates:
1. (1) salaries;
2. (2) employee health and welfare expense;
3. (3) nonpayroll administrative and general expense;
4. (4) nonpayroll household and maintenance expense;
5. (5) nonpayroll professional care expense.
(c) Each weight shall be adjusted by one or more price indices. Included among these indices are elements of the United States Department of Labor consumer and produce price indices and special indices developed by the commissioner for this purpose.
(d) The projected trend factors shall be updated on an annual basis, based upon current and available data. The commissioner shall adjust subsequent trend factors based upon such update.