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CDT Code Changes 2017

Changes to the “Code on Dental Procedures and Nomenclature,” commonly known as the CDT Code, have been released and will become effective for services provided on or after January 1, 2017. 

The CDT Code is the current HIPAA-designated code set used in electronic dental data interchanges. It is the national standard for reporting dental services and is the principal means of communication between dentists and dental benefits payers. 

Any dental claim submitted electronically on a HIPAA standard electronic dental claim must use procedure codes from the current version of the CDT Code. This is also true for dental claims submitted on paper. 

The CDT Code is reviewed annually by the American Dental Association (ADA) and updated to reflect changes in dental procedures accepted by the dental community. Each revised version takes effect January 1 of each year. 

The 2017 version of the CDT Code incorporates a significant number of procedure code changes with 11 new procedure code entries, 37 revised procedure code entries and one deleted code entry. The 2017 CDT Code also includes new subcategory and revised subcategory changes. 

With all new code changes, we recommend that dentists and dental offices verify covered services for patients before rendering treatment. Details of individual coverage can be verified by calling our customer service department or by going online through the Dental Office Toolkit (DOT). 

Accurate coding promotes faster claim processing and fewer errors, so Delta Dental recommends that each dental office have a current copy of the CDT Code. To order a copy of the CDT Code, call the ADA at 800-947-4746, or go online at