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This variable is contained in the following files:
SAS Name
PRELIM_ASSIGN
0/1 flag; =1 if beneficiary was assigned in the initial performance year assignment run (Prospective Assignment or Preliminary Prospective Assignment with Retrospective Reconciliation). Note that for Prospective Assignment ACOs the prospectively assigned beneficiaries are the same for all periods with the exception of beneficiaries that have met exclusion criteria for one or more reasons during the performance year. As a result, the number of assigned beneficiaries for Prospective Assignment ACOs will be smaller for each consecutive assignment period.
Populated in preliminary/prospective file or later if beneficiary is assigned in a later period.