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This variable is contained in the following files: Part D Plan Election Type Beneficiary Summary File
SAS Name
CHOOSER

This variable indicates that the beneficiary had one or more Part D enrollment transactions that span the reference year where the Enrollment Type Code indicates that the beneficiary made the plan selection (Enrollment Type Code of B or L).

Comments

The Enrollment Type Code variable (SAS name is ENRLMT_TYPE_CD) appears in the Part D Beneficiary Plan Election File.

Source: CMS Common Medicare Environment (CME) - derived

CodeCode value
Y
yes, the beneficiary elected the Part D Pla
Null/missing