Both CRD and DTR will provide the ability for a payer that has sufficient information to determine that a service, item, referral, or appointment that normally requires prior authorization does not need it in this instance (based on information held by the payer, sent by the provider as part of CRD, or retrieved from the patients record).  The payer SHALL return a specific coverage code (to indicate the item is covered and PA submission is not required) as part of the coverage extension and a unique ID that SHALL be included in the X12 837 K3 segment for the associated claim.  This code and unique ID provide evidence of the payer's determination to not required prior authorization for the associated service, item, referral, or appointment.