Section 425.408 - Payment Methodology(A)In State. Payments to in-state private psychiatric inpatient hospitals for services furnished to MassHealth members will equal the rate established in the signed provider contract with the MassHealth agency.(B)Out of State. Payment to out-of-state private psychiatric inpatient hospitals will be the Massachusetts state-wide average per diem rate or administrative day rate established by the MassHealth agency for in-state private psychiatric inpatient hospitals.Amended by Mass Register Issue 1341, eff. 6/16/2017.