Can insurers terminate ERISA coverage when beneficiaries become eligible for Medicaid? Mellor v. Wasatch Crest Mutual Insurance Company Explained

The Utah Supreme Court’s decision in Mellor v. Wasatch Crest Mutual Insurance Company provides important guidance on ERISA plan interpretation and the interaction between private insurance and Medicaid eligibility. The case arose when an insurance company attempted to terminate coverage for a catastrophically injured child who became eligible for Medicaid.

Background and Facts

Hayden Williams was covered under his father’s employer-sponsored health plan through Wasatch Crest Insurance. After his father’s employment terminated, the family elected COBRA continuation coverage. In August 2001, Hayden suffered a near-drowning accident resulting in catastrophic injuries. Two weeks later, his mother applied for Medicaid coverage, which was approved with retroactive coverage to August 1, 2001. Wasatch Crest then claimed its obligation to pay ceased under plan exclusions and sought reimbursement from healthcare providers.

Key Legal Issues

The court addressed two primary issues: whether the mother had standing to bring the action on behalf of her minor son, and whether the insurance plan’s exclusions terminated coverage when Hayden became eligible for Medicaid. The plan contained conflicting exclusions – one excluding expenses covered by government programs generally, and another specifically excepting Medicaid from the exclusion.

Court’s Analysis and Holding

The Supreme Court found the conflicting exclusions created an ambiguity that must be resolved in favor of coverage. The court applied the principle that when insurance contract provisions can be construed either against or in favor of coverage, they should be construed favorably. Additionally, both federal ERISA provisions and Utah law prohibit insurance plans from excluding coverage based solely on Medicaid eligibility, as this would improperly shift obligations to taxpayer-funded programs.

Practice Implications

This decision reinforces that courts will carefully scrutinize insurance plan exclusions for internal inconsistencies. Practitioners should examine whether plan provisions create ambiguities that could favor coverage. The ruling also confirms that ERISA plans cannot use Medicaid eligibility as grounds for termination, providing important protection for catastrophically injured beneficiaries who may qualify for government assistance.