Medicaid Beneficiary Identifier Reference Year

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This variable is contained in the following files:

SAS Name

MSIS_RFRNC_YR

Year the MSIS_ID in the AHC file was found in the T-MSIS claims.

Comments

Earliest year associated with the MSIS_ID for the beneficiary during the AHC study period.

Source: CCW

Code	Code value
2018-2022
Null/missing	MSIS_ID was not found in T-MSIS or beneficiary was enrolled in Medicare only and not Medicaid