Medicare Managed Care Manual (Pub. 100-16), Ch. 18b § 230
Alternative Method for Cost Report Treatment of Employer
230 - Alternative Method for Cost Report Treatment of Employer
Health Plans
(Rev. 30, 09-05-03)
In the case of benefits covered by an employer plan for a Medicare member who is also a
group member under the employer's plan, the Medicare HCPP may elect to identify the
cost or charge for the service covered under that plan. However, instead of specifically
identifying those services for which an employer health plan is primarily liable for
payment, the HCPP may elect to utilize a member month ratio to establish Medicare's
liability. This election must be made in writing at the time of a timely submitted budget.
In addition, this election must be made for the groups of Medicare beneficiaries subject to
the MSP provisions as described in this chapter.
Once the election is made, the election will remain in effect until it is revoked by the
HCPP in writing on a timely submitted budget.
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The member month ratio is developed by dividing the Medicare member months by the
total Medicare member months. This ratio would then be applied to covered Medicare
service costs resulting in those costs for which Medicare is the primary payer.