42 C.F.R. § 110.80
In calculating medical benefits, the Secretary will take into consideration all reasonable costs for reasonable and necessary medical items and services to diagnose or treat a countermeasure recipient's covered injury, or to diagnose, treat, or prevent its health complications, as described in § 110.31 . The Secretary will consider and may rely upon benefits documentation submitted by the requester (e.g., bills, Explanation of Benefits, and cost-related documentation to support the expenses relating to the covered injury or its health complications), as required by § 110.60 . The Secretary will make such payments only to the extent that such costs were not, and will not be, paid by any third-party payer and only if no third-party payer had or has an obligation to pay for or provide such services or items to the requester, except as provided in §§ 110.83(c) and 110.84 . There are no caps on the benefits for reasonable and necessary medical expenses that may be provided under the Program.
42 C.F.R. §110.80