Health Care Provider Taxonomy Codes (HPTCs)

The Healthcare Provider Taxonomy Code (HPTC) set is maintained by the National Uniform Claim Committee (NUCC) for standardized classification of health care providers. The NUCC updates the code set twice a year with changes effective April 1 and October 1. The HPTC list is available for view or for download from the Washington Publishing Company (WPC) Web site at

The changes to the code set include the addition of a new code and addition of definitions to existing codes. When reviewing the Health Care Provider Taxonomy code set online, revisions made since the last release can be identified by the color code; new items are green, modified items are orange, and inactive items are red.


Health Insurance Portability and Accountability Act (HIPAA) requires that covered entities comply with the requirements in the electronic transaction format implementation guides adopted as national standards. The institutional and professional claim electronic standard implementation guides (X12 837-I and 837-P) each require use of valid codes contained in the HPTC set when there is a need to report provider type or physician, practitioner, or supplier specialty for a claim. Valid HPTCs are those codes approved by the NUCC for current use. Terminated codes are not approved for use after a specific date and newly approved codes are not approved for use prior to the effective date of the code set update in which each new code first appears. Although the NUCC generally posts their updates on the WPC Web page 3 months prior to the effective date, changes are not effective until April 1 or October 1 as indicated in each update. Specialty and/or provider type codes issued by any entity other than the NUCC are not valid, and Medicare would be guilty of non-compliance with HIPAA if Medicare contractors accepted claims that contain invalid HPTCs.

If you have any questions regarding this issue, refer to the Contact Us page of our Web site to call the Provider Contact Center.

Page last updated: October 25, 2012

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