What condition MUST be satisfied for a totally disabled employee to continue coverage under the extension of benefits provision in a medical expense plan?

While undergoing treatment at the time the plan ends may seem relevant, it is not a necessary condition for continuing coverage. The key factor is that the disability must stem from an incident or illness that occurred during active coverage, rather than the status of treatment at the time of termination.

This choice incorrectly implies that benefits can be extended only if all claims related to the disability were incurred before the plan's termination. However, the crucial aspect is the origin of the disability, not the timing of claims submission. A claim related to a qualifying disability can still be valid if the condition arose while the employee was covered.

The requirement does not stipulate that the total disability must be permanent. Temporary disabilities can also qualify for extended coverage as long as they meet the criteria of being linked to incidents or illnesses occurring while under the plan. The permanence of the disability is irrelevant for the continuation of benefits.