Balance billing. A provider seeking any payment, other than any payment relating to applicable deductible and cost sharing amounts, from a beneficiary for CHAMPUS covered services for any amount in excess of the applicable CHAMPUS allowable cost or charge.
32 CFR § 199.2
General. In an effort to be as specific as possible as to the word and intent of CHAMPUS, the following definitions have been developed. While many of the definitions are general and some assign meaning to relatively common terms within the health insurance environment, others are applicable only to CHAMPUS; however, they all appear in this part solely for the purpose of the Program. Except when otherwise specified, the definitions in this section apply generally throughout this part.