What is the meaning of UC & R?

UC&R (or Usual, Customary & Reasonable):

UC&R (or Usual, Customary & Reasonable) Charges represent the average or most common amount charged by providers for a particular service, treatment, or supply in the same geographic area. Typically information on rates for procedures is compiled into a data bank and updated periodically. So when a claim is submitted for a plan with UC&R benefits, the insurance company before making the claim payment reviews the UC&R rate and double checks that hospitals and doctors are not billing excessively for the particular service or procedure. Most well respected plans from Blue Cross, Aetna, Lloyds, Unicare etc. follow the UC&R schedule.