Medicare Denominator & Beneficiary Summary Files
(For reference purposes only)

SAS Name

Short Description

Denominator

Beneficiary Summary

Unique Beneficiary Identifier

1 

1 

BIC

Equated Beneficiary Identification Code

2

-

OBIC

Original BIC

3

-

STATE_CD

State Code

4

2

CNTY_CD

County Code

5

3

BENE_ZIP

Zip Code of Residence

6

4

BENE_DOB

Date of Birth

7

5

SEX

Sex

8

6

RACE

Beneficiary Race Code

9

7

AGE

Age

10

8

OREC

Original Reason for Entitlement Code

11

9

CREC

Current Reason for Entitlement Code

12

10

ESRD_IND

ESRD Indicator

13

11

MS_CD

Medicare Status Code

14

12

A_TRM_CD

PART A Termination Code

15

13

B_TRM_CD

PART B Termination Code

16

14

BUYIN12

Medicare Entitlement/Buy-In Indicator

18

15

HMOIND12

HMO Indicator

19

16

A_MO_CNT

HI Coverage Count

20

17

B_MO_CNT

SMI Coverage Count

21

18

HMO_MO

HMO Coverage Count

22

19

BUYIN_MO

State Buy-In Coverage Count

23

20

V_DOD_SW

Valid Date of Death Switch

24

21

DEATH_DT

Date of Death

25

22

RFRNC_YR

Beneficiary Enrollment Reference Year

26

23

FIVEPCT

CMS 5% Sample Flag

-

24

EFIVEPCT

Enhanced (CCW) 5% Sample Flag

-

25

CRNT_BIC

Unequated Beneficiary Identification Code

-

26

CRDCOVSW

On/Off Creditable Coverage Switch

-

27

CSTSHR

Cost Share Group

-

28

RDSIND

Retiree Drug Subsidy Indicators

-

29

DUAL

State Reported Dual Eligible Status Code

-

30

PLNCOVMO

Part D Plan Coverage Months

-

31

RDSCOVMO

Retiree Drug Subsidy Months

-

32

DUAL_MO

Medicaid Dual Eligible Months

-

33

RTI_RACE

Research Triangle Institute Race Code

-

34

CNTRCT

Encrypted Plan Contract ID

-

35

PBPID

Encrypted Plan Benefit Package ID

-

36

SGMTID

Encrypted Segment ID

-

37