NDC to HCPCS Crosswalk -- National Drug Code (NDC) to Healthcare Common Procedure Coding System (HCPCS) Crosswalk
CMS' Medicare Pricing, Data Analysis and Coding (PDAC) contractor provides a National Drug Code (NDC) to Healthcare Common Procedure Coding System (HCPCS) crosswalk for "Level II HCPCS along with conversion factors that are used to price the applicable billings to allow processing of claims filed using the NCPDP format."
"PDAC updates the file monthly to add, revise or delete NDCs as published by Redbook. The file provides all prior updates, along with details on the changes that occurred in that month."
"The PDAC only adds and updates the NDC/HCPCS that are billable to the DMEMACs. Prior to the effective PDAC contract date of August 2008, all NDCs were updated. While these are still listed on the crosswalk file, they are not updated as changes are reported in Redbook."The information submitted as part of the listing process, the NDC number, and the NDC Directory are used in the implementation and enforcement of the Act."
The National Drug Code (NDC) to Healthcare Common Procedure Coding System (HCPCS) data is offered here in SAS, Stata, and CSV formats to make the data a bit easier to use.
Some sheets in some months and years had no observerations because none of those changes occurred.
Combined Months and Years Data
Data from January 2011 through the current month's data file are combined in these datasets. The NDC-HCPCS Crosswalk file has one record per NDC HCPCS combination. The NDC NDC Mod-HCPCS HCPCS-Mod Crosswalk file has one record per NDC NDC Modifier HCPCS HCPCS Modifier combination. The Date Changes, Coding Changes, Records & NDCs Added, Records & NDCs Removed and Additional Changes files are aggregations of the multiple monthly files.
Current Monthly Data
The current month's data file is used for current billing.
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