NAME TYPE LENGTH ------------------------------------- ------ 15. MEDICARE ENTITLEMENT/BUY-IN CHAR 1 INDICATOR OCCURS: 12 TIMES SHORT NAME: BUYIN01 (THROUGH BUYIN12) LONG NAME: BENE_MDCR_ENTLMT_BUYIN_IND_01 (THROUGH BENE_MDCR_ENTLMT_BUYIN_IND_12) CODES: 0 = NOT ENTITLED 1 = PART A ONLY 2 = PART B ONLY 3 = PART A AND PART B A = PART A, STATE BUY-IN B = PART B, STATE BUY-IN C = PARTS A AND B, STATE BUY-IN CCW FIELD SOURCE AND DERIVATION: RIC-C; Field Name: BENE_PTA_ENTLMT_STRT_DT and BENE_PTA_ENTLMT_TRMNTN_DT RIC-D; Field Name: BENE_PTB_ENTLMT_STRT_DT and BENE_PTB_ENTLMT_TRMNTN_DT RIC-2; Field Name: BENE_TP_PTB_STRT_DT and BENE_TP_PTB_STOP_DT and (BENE_TP_PTB_PRM_PYR_CD in ('010', '020', '030', '040', '050', '060', '070', '080', '090', '100', '110', '120', '130', '140', '150', '160', '170', '180', '190', '200', '210', '220', '22A', '230', '240', '250', '260', '270', '280', '290', '300', '310', '320', '330', '340', '350', '360', '370', '380', '390', '400', '410', '420', '430','440','450', '460','470','480','490','500', '510','520','530','640','650') Each byte of this field represents a month of the Beneficiary Summary reference year. For example, the 1st byte represents Beneficiary Summary reference year month January, the 2nd byte represents Beneficiary Summary reference year month February, and so on until the 12th byte, which represents Beneficiary Summary reference year month December. Each monthly indicator takes the value of one of the code set listed in the Beneficiary Summary File data dictionary. If the beneficiary did not have recorded Beneficiary 3rd Party Part B coverage during a given month of the Beneficiary Summary reference year, then that month is coded ‘0.’ In the processing and determination of the values in this field, only state buy-in for Medicare Part B is considered. The state buy-in information for Medicare Part A is not considered due to the assumed low number of beneficiaries that have state buy-in for Medicare Part A. It is assumed, therefore, that if a beneficiary is documented as having state buy-in for Medicare Part B then the state is also buying in for that beneficiary’s Medicare Part A as well if the beneficiary does not have the necessary credits or work experience for free Medicare Part A (as the majority of the beneficiary population has free Medicare Part A). CMS DENOMINATOR DIFFERENCE: RIC-C; Field Name: BENE_PTA_ENTLMT_STRT_DT and BENE_PTA_ENTLMT_TRMNTN_DT RIC-D, Field Name: BENE_PTB_ENTLMT_STRT_DT and BENE_PTB_ENTLMT_TRMNTN_DT Third Party Master File, RIC-M; Field Name: TP_ACCRET_EFF_DT, TP_DELETE_EFF_DT, and TP_AGENCY_CD