Terminology owner/maintenance organisation

Name, contact details, website

American Dental Association




Formal name of the code system

Code on Dental Procedures and Nomenclature

Short name or abbreviation of the code system name

Technical identifier/s for the code system 

OID:  2.16.840.1.113883.6.13
Canonical URL: http://www.ada.org/cdt

Scope/domain statement for the code system

(Official or from HTA)

"The purpose of the CDT Code is to achieve uniformity, consistency and specificity in accurately documenting dental treatment. One use of the CDT Code is to provide for the efficient processing of dental claims, and another is to populate an Electronic Health Record."

Link to information about the code system - including how to obtain the content


Arrangement or agreements with HL7 for use of content

Agreement that HL7 may publish and use CDT content in international standards
Version management - timing and identification of versions

CDT is published Annually. Versions should refect the YYYY of the release.

"The Council on Dental Benefit Programs (CDBP) has ADA Bylaws responsibility for CDT Code maintenance. To fulfill this obligation CDBP established its Code Maintenance Committee (CMC), a body that includes representatives from various sectors of the dental community (e.g., ADA; dental specialty organizations; third-party payers). CMC members, by their votes, determine which of the requested actions are incorporated into the CDT Code."

Please see Code Maintenance Committee (CMC) page for information about the CMC's members and activities.

IP Information and Licensing Information

"American Dental Association (ADA) developed Current Dental Terminology (CDT®) as a standardized language to help dentists and other members of the healthcare industry communicate effectively. CDT is revised and updated every year.

The ADA is the exclusive copyright owner of CDT, the Code on Dental Procedures and Nomenclature (the Code), and the ADA Dental Claim Form. Except as permitted by law, all use, copying or distribution of CDT, or any portion thereof (including the Code on Dental Procedures and Nomenclature) in any product or services (including works prepared for clients by consultants and other professionals), whether in printed, electronic or other format, requires a valid commercial user license from the ADA."

For more information : https://www.ada.org/en/publications/ada-catalog/cdt-products/licensing-for-commercial-users

HL7 users of this information - which HL7 products use this link (if known)

Process to request content change

CDT Change requests may be submitted at any time, and the date received determines the CDT Code version that may incorporate the requested action. The annual closing date for submissions is on the CDT Code Maintenance timeline. Any requests received after the closing date will be addressed in the next annual maintenance cycle.

Other useful Information

On August 17, 2000 the CDT Code was named as a HIPAA standard code set. Any claim submitted on a HIPAA standard electronic dental claim must use dental procedure codes from the version of the CDT Code in effect on the date of service. The CDT Code is also used on paper dental claims, and the ADA's paper claim form data content reflects the HIPAA electronic standard.

Information current as at (date)

Sept 2020
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  1. Jean Narcisi  I've updated this page, please review, edit if necessary and let us know when the information is complete. Per HTA process, we will then notify the HL7 FHIR Community via Zulip. 

    It should be noted that the URL originally on this page varied slightly from what is being requested (http://www.ada.org/cdt vs  https://www.ada.org/en/publications/cdt)

    When looking in UTG, I find this existing Code System, can you confirm it is the same? https://terminology.hl7.org/CodeSystem-CD2.html, the OID appears to match

    Copying UTG (Jessica Bota and Ted Klein) as an heads up in case UTG requries some updates.

  2. The URL that you suggested above is correct. The information in the title of the UTG and at the top of the page should be CDT Codes not CDT-2 Codes. Hopefully that can be corrected.  Please let me know if you have any other questions.

    Thanks....Jean Narcisi 

  3. Jessica Bota see differences (including the one Jean noted above regarding the expanded name of CDT in THO).

    1. Caroline Macumberand Jean Narcisi

      I am working on implementing these changes. Short name cannot have spaces. Can we use 'CDT'? 

      1. Jean Narcisi, if you prefer to be descriptive, i'd go with "CDTCodes". If not, then "CDT"

        1. Edited Name to be 'CDT' per agreement with Jean Narcisi