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This variable is contained in the following files: Master Beneficiary Summary File (MBSF) Base
Short SAS Name
B_MO_CNT
SAS Name
BENE_SMI_CVRAGE_TOT_MONS

Months of Part B coverage

Comments

This variable is the number of months during the year that the beneficiary had Medicare Part B coverage. (This is sometimes referred to as supplemental medical insurance coverage - or SMI coverage.) CCW derives this variable by counting the number of months where the beneficiary had Part B coverage (i.e., the BUYINXX variable equaled 2, B, 3, or C).

Source: CMS Common Medicare Environment (CME) (derived)

Code value
0-12