Mo. Rev. Stat. § 454.615: Employer or union to transfer order to group health plan — duties of plan administrator.

1. Upon receipt of a court or administrative order, or notice, for health benefit plan coverage, the employer or union shall transfer the order or notice to the appropriate group health plan providing the health plan coverage for which the child is eligible, excluding any severable notice to withhold for health care coverage directing the employer or union to withhold any mandatory employee contribution to the plan, within twenty business days after the date of the order or notice.

2. Within forty business days after the date of the order or notice, the plan administrator shall:

(1) Notify the issuing agency whether coverage of the child is available under the terms of the plan and, if so, whether such child is covered under the plan and either the effective date of such coverage or, if necessary, any steps to be taken by the custodial parent or issuing agency to effectuate such coverage; and

(2) Provide to the custodial parent or issuing agency a description of the coverage available and any forms or documents necessary to effectuate such coverage.