The ASP crosswalks support ASP-based Medicare Part B payments only. The crosswalks are intended to help understand which drug products (identified by NDCs) are assigned to which HCPCS billing codes. The crosswalks are not intended to be a comprehensive list of all drugs/NDCs available in the United States. The NDC to HCPCS Crosswalk also includes information on the NDC package size and the number of billable units (as defined by the HCPCS code descriptor).
Effective April 1, 2021 - June 30, 2021
Effective January 1, 2021 through March 31, 2021
Effective October 1, 2020 through December 31, 2020
Effective July 1, 2020 through September 30, 2020
Effective April 1, 2020 through June 30, 2020