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Determining Primary and Secondary Plans

The following are the provisions for determining which plan will be "primary":

Description

Primary Plan

Secondary Plan

Active employee

Plan that has been in effect the longest

n/a

Active employee with COBRA from previous employer

State and School Employees' Health Insurance Plan

COBRA

Dependent spouse with other coverage as 'active employee'

Other health plan

State and School Employees' Health Insurance Plan

Active employee and spouse with children: both parents' health plans cover children

Follow birthday rule*

Follow birthday rule*

Active employee, divorced or separated, both parents' health plans cover children with court order

Follow court decree**

Follow court decree**

*Under the birthday rule, the plan of the parent whose birthday falls earliest in the calendar year is the child's primary plan. If both parents have the same birthday, the parent who has been covered longer has the primary plan. If the non-MSSEHIP plan does not have the birthday rule, then the rule in the non-MSSEHIP plan will determine which is primary.

**If parents are divorced or separated, and both parents' plans cover a dependent child, and there is no court decree, benefits for the child are determined in this order:

  1. First, the plan of the parent with custody;

  2. Then, the plan of the stepparent (spouse of the parent with custody of the child);

  3. Finally, the plan of the parent not having custody of the child.