Months of Retiree Drug Subsidy Coverage

SAS Name

This variable is the number of months during the year that the beneficiary was enrolled in an employer-sponsored prescription drug plan that qualified for Part D’s retiree drug subsidy (RDS). CCW derives this variable by counting the number of months where the beneficiary had retiree drug subsidy.


A month of RDS is when the RDS_IND_XX for the month = Y.

Some employers offer prescription drug plans to their retirees, and Part D pays a subsidy to plans that offer coverage that is equivalent to (or better than) conventional Part D benefits.

CMS does not collect PDEs for beneficiaries that are enrolled in RDS-eligible plans.

Source: CMS Common Medicare Environment (CME) (derived)