What Is Stop-Loss Insurance
Stop-loss insurance is a policy that self-funded employers purchase to protect themselves from catastrophic claims expenses. When an employee's medical claims exceed a specific threshold in a given year, the stop-loss carrier pays the portion above that limit. This protects the employer's budget but has direct consequences for how your claims get processed and denied.
How It Affects Your Claims and Appeals
When your employer uses a self-funded plan with stop-loss coverage, the claim denial or approval decision may involve multiple parties beyond the standard insurance company. Your employer's plan administrator, the third-party administrator (TPA) processing claims, and the stop-loss carrier all have financial incentives that intersect at claim approval points. This creates complexity in appeals because the entity responsible for payment changes depending on the claim amount.
For example, if your claim is $8,000 and the stop-loss threshold is $10,000 individual/$25,000 aggregate, your employer absorbs the full $8,000. A denial at this level protects the employer's cash flow directly. But if your claim hits $15,000, the stop-loss carrier covers $5,000 of it. During appeals, you may need to address both the employer's concerns about medical necessity and the stop-loss carrier's review criteria, which often center on whether treatment met clinical evidence standards.
Thresholds and Regulatory Considerations
- Individual stop-loss attachment points typically range from $5,000 to $25,000 depending on company size and risk tolerance
- Aggregate thresholds (total claims per year) often sit at 125% of expected claims, meaning if a company budgets $1 million in claims, the aggregate stop-loss triggers at $1.25 million
- State insurance regulators have begun increasing oversight of stop-loss plans. As of 2023, 12 states require stop-loss carriers to demonstrate that plans don't function as substitute insurance, which affects claim review standards
- ERISA governs these plans, meaning internal appeals must follow specific timelines (30 days for standard review, 72 hours for urgent care) regardless of whether your employer self-funds
What This Means When You Appeal a Denial
Request your EOB specifically listing which entity made the denial decision. If the claim is below the individual attachment point, your internal appeal goes through the employer's TPA. If above it, the stop-loss carrier may participate in the external appeal review. Prior authorization denials under stop-loss plans often hinge on whether the treating provider's medical necessity documentation matched the stop-loss carrier's clinical evidence thresholds, which are sometimes stricter than the base plan's requirements.
When filing an external appeal under your state's independent review organization (IRO) process, include documentation showing the claim amount relative to stop-loss thresholds. IROs don't typically know which party funds which portion, but this context helps explain why a medically reasonable treatment was initially denied on cost-containment grounds.
Common Questions
- Does knowing about stop-loss insurance change how I appeal? Yes. It explains why denials happen. Request your plan documents to find the exact attachment point. Appeals above that threshold may receive different scrutiny because financial incentives shift to the stop-loss carrier.
- Can my employer be transparent about stop-loss terms? Under ERISA, you have the right to request the plan's Summary Plan Description, which must disclose stop-loss arrangements. If they refuse, file a complaint with the Department of Labor.
- What if the stop-loss carrier denies my claim during external appeal? The stop-loss carrier isn't formally party to ERISA appeals, but if the TPA defers to their denial, state law may require the stop-loss review to meet the same standards as the base plan review. Document this discrepancy in your appeal letter.