Fed. R. Evid. 409
Evidence of furnishing, promising to pay, or offering to pay medical, hospital, or similar expenses resulting from an injury is not admissible to prove liability for the injury.
28 APPENDIX U.S.C. § 409
NOTES OF ADVISORY COMMITTEE ON PROPOSED RULESThe considerations underlying this rule parallel those underlying Rules 407 and 408, which deal respectively with subsequent remedial measures and offers of compromise. As stated in Annot., 20 A.L.R.2d 291, 293:"[G]enerally, evidence of payment of medical, hospital, or similar expenses of an injured party by the opposing party, is not admissible, the reason often given being that such payment or offer is usually made from humane impulses and not from an admission of liability, and that to hold otherwise would tend to discourage assistance to the injured person."Contrary to Rule 408, dealing with offers of compromise, the present rule does not extend to conduct or statements not a part of the act of furnishing or offering or promising to pay. This difference in treatment arises from fundamental differences in nature. Communication is essential if compromises are to be effected, and consequently broad protection of statements is needed. This is not so in cases of payments or offers or promises to pay medical expenses, where factual statements may be expected to be incidental in nature.For rules on the same subject, but phrased in terms of "humanitarian motives," see Uniform Rule 52; California Evidence Code §1152; Kansas Code of Civil Procedure §60-452; New Jersey Evidence Rule 52.
COMMITTEE NOTES ON RULES-2011 AMENDMENT The language of Rule 409 has been amended as part of the restyling of the Evidence Rules to make them more easily understood and to make style and terminology consistent throughout the rules. These changes are intended to be stylistic only. There is no intent to change any result in any ruling on evidence admissibility.