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This variable is contained in the following files: Plan Characteristics File
Short SAS Name
GAP_PARTIAL_TIER_01 - GAP_PARTIAL_TIER_07

For Part D plans with some cost sharing in the gap (gap_tier = Yes), this variable indicates whether or not the the cost sharing applies to a partial list of drugs. If only a limited number of drugs on the tier are covered through the gap then the value will be 'Y'. If all drugs on the tier are covered through the gap then the value will be 'N'.

CodeCode value
Y
Yes
N
No
9
Not Applicable