CMS Medicare Part B Discarded Drug Units
Datathon 2026
Updated Oct 8, 2026
Updated one-time
About this dataset
CMS Medicare Part B Discarded Drug Units report: HCPCS-level summary tables identifying single-use vial/package drugs administered under Medicare Part B fee-for-service with reported discarded amounts (JW modifier), covering total allowed spending and the administered-vs-discarded split. Applies to claims dated on or after January 1, 2017.
Data and resources (3)
- CSV
Medicare Part B Discarded Drug Units
Modified Aug 5, 2026Table and Data API available
- DOCX
Medicare Part B Discarded Drug Units Data Dictionary
18 KBModified Aug 14, 2026Document preview available
- DOCX
Medicare Part B Discarded Drug Units Methodology
18 KBModified Aug 17, 2026Document preview available