American Dental Association (ADA) A professional organization for dentists. The ADA maintains a hardcopy dental claim form and the associated claim submission specifications, and also maintains the Current Dental Terminology (CDT ....) medical code set. The ADA and the Dental Content Committee (DeCC), which it hosts, have formal consultative roles under HIPAA. Related Terms: Current Dental Terminology; Legislation Files Containing This Term: legislation/45CFR-162.1002.html