As a dental
insurance company I would like to know: Can I process dental claims and
report back to the dentist on my own made-up codes as long as I reference
the CDT-3 code I converted from? As a dental
insurance company I would like to know: Can I process dental claims and
report back to the dentist on my own made-up codes as long as I reference
the CDT-3 code I converted from? 
12/28/2000:No, the standard code sets must be used in the transactions back to the dentist (i.e., the remittance advice, etc.) Made up codes can be used for internal processing only.