Section 411.52 - Basis for conditional Medicare payment in liability cases(a) A conditional Medicare payment may be made in liability cases under either of the following circumstances: (1) The beneficiary has filed a proper claim for liability insurance benefits but the intermediary or carrier determines that the liability insurer will not pay promptly for any reason other than the circumstances described in § 411.32(a)(1) . This includes cases in which the liability insurance carrier has denied the claim.(2) The beneficiary has not filed a claim for liability insurance benefits.(b) Any conditional payment that CMS makes is conditioned on reimbursement to CMS in accordance with subpart B of this part. 71 FR 9470 , Feb. 24, 2006