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, 2019 through June 30, 2019
Effective January 1, 2019 through March 31, 2019
Effective October 1, 2018 through December 31, 2018
Effective July 1, 2018 through September 30, 2018
Effective April 1, 2018 through June 30, 2018
