This variable indicates whether the plan reassignment occurred in January of the reference year.
This variable is populated only if the beneficiary was newly reassigned for their January plan, regardless if they opted out of the re-assignment. This flag resets yearly.
Source: CMS Common Medicare Environment (CME) - derived
|Y||Yes, beneficiary was reassigned to the Part D Plan at the beginning of the year|
|Null/missing||Beneficiary was not reassigned in January of the reference year|