Neb. Rev. Stat. § 44-3613

An issuer of a medicare supplement policy or certificate shall not be required to reimburse a supplier or beneficiary in an amount greater than one hundred fifteen percent of the medicare-approved amount for durable medical equipment, prosthetics, orthotics, or supplies. Nothing in this section shall be construed to prevent an issuer from negotiating the level and type of reimbursement with a supplier for covered durable medical equipment, prosthetics, orthotics, or supplies.