I have not received my activation code for the ADA CDT Codes app.

Your activation code (or license key) will be in one of two places, depending on which option you purchased:

1. A code is included with the CDT: Current Dental Terminology book. Look for your redemption code on the inside cover of the CDT: Current Dental Terminology textbook. To redeem your redemption code and install the app, visit https://cdtapp.ada.org
   
   
2. You can also purchase CDT Coding App as a standalone product (without a book). Customers who place orders for the CDT 2025 App via ADAcatalog.org will receive an email containing a redemption code that can be redeemed at https://cdtapp.ada.org 

Our company, Higher Learning Technologies, does not distribute the codes. If you need help tracking down a code from an ADA website purchase, please contact them directly.