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Short SAS Name
BENE_CNTY_CD
SAS Name
BENE_CNTY_CD

The 3-digit social security administration (SSA) standard county code of a beneficiary's residence.

Comments

CMS enrollment data is obtained from the source CMS Common Medicare Environment (CME) data.

A listing of county codes can be found on the US Census website; also CMS has corebased statistical area (CBSA) crosswalk files available on their website, which include state and county SSA codes.

Source: CMS Encounter Data System (EDS)