This variable is the total Medicare payments for Part B drugs for a given year. Part B drug claims are a subset of the claims in the Part B Carrier and DME data files.
The Part B drug claims are identified by BETOS codes (CCW variable BETOS_CD with values of 'D1G','O1D','O1E','O1G','I1E', or 'I1F'). Total Part B drug payments are calculated as sum of LINE_NCH_PMT_AMT where the LINE_PRCSG_IND_CD was ('A','R', or 'S').
There are 11 cost/use categories from the Carrier Part B and DME data files – the ASC, Anesthesia, Part B Drug, Physician, E &M, dialysis, imaging, tests, other procedures, DME and other carrier claims.
Source: CCW (derived)