In-The-Know
Managing High-Cost Claims and Stop-Loss
In this issue
High-cost claims remain one of the most significant financial risks facing self-funded employers. A single member requiring complex cancer treatment, specialty drug therapy, a transplant, or prolonged hospitalization can dramatically affect a health plan's annual performance. Stop-loss insurance helps protect employers from unexpected expenses, but managing high-cost claims requires more than purchasing coverage and reviewing it once a year.
For consultants, there is an opportunity to help plan sponsors determine how much risk they can responsibly retain, which risks should be transferred, and whether the proposed coverage will respond as expected. It requires connecting the employer’s claims experience, cash-flow tolerance, population risk, plan provisions, and clinical strategy to the structure of the stop-loss contract.
Why High-Cost Claims Matter
For this article, a high-cost claimant is defined as a member whose combined medical and prescription drug claims exceed $250,000 during a plan year. Nearly 90% of self-funded employers have experienced one.
A large historical analysis showed that for every 10,000 members there are approximately 16 high-cost claimants that exceeded this threshold. That figure should be viewed as directional because claim frequency varies by demographics, geography, provider pricing, health conditions, benefit design, and pharmacy utilization.
More recent industry analysis indicates that claimants exceeding $250,000 are becoming more common. The key takeaway is that high-cost claims are no longer isolated events. Consultants should help their clients plan for them as a recurring part of health plan performance.
Cancer remains a leading driver of high-cost claims, while cardiovascular disease, musculoskeletal conditions, complex newborn care, specialty medications, transplants, and rare diseases also create significant exposure. Not every large claim can be predicted or prevented. The objective is to identify emerging risks when possible, reduce avoidable costs, support appropriate care, and prepare financially for claims that cannot be avoided.
Understanding the Role of Stop-Loss
Stop-loss limits the self-funded employer’s exposure when an individual claimant's costs (specific stop-loss) or the plan's total eligible claims (aggregate stop-loss) exceed a predetermined level. Once the pre-set dollar value (aggregate attachment point) has been reached, the stop-loss coverage begins.
Stop-loss does not reduce the underlying cost of care or replace the employer’s responsibility to pay covered claims. Stop-loss is a separate insurance contract that generally reimburses the employer for eligible claims above the attachment point after the policy’s requirements are met. Some policies offer advance-funding or similar arrangements that reduce the employer’s temporary cash-flow burden but stop-loss does not replace the employer health plan as the party responsible for paying covered claims.
Consultants should evaluate:
- Specific and aggregate attachment points.
- Incurred-and-paid contract provisions.
- Eligible expense definitions and exclusions.
- Lasers and disclosure requirements.
- Reimbursement timing.
- Pharmacy and specialty drug coverage.
- Renewal rate caps and no-new-laser protections.
- Alignment among the plan document, administrator, and stop-loss policy.
- Stop-loss premiums.
Reviewing these factors together provides a clearer picture of the plan's financial exposure and helps employers make more informed decisions.
Managing Stop-Loss
Stop-loss is most effective when it is managed throughout the plan year rather than at renewal. Consultants should help their clients monitor emerging high-cost claimants, specialty drug utilization, ongoing cancer or transplant cases, outstanding reimbursements, and any claimants likely to continue into the next contract period.
Consultants can also support their clients by ensuring that stop-loss coverage connects to the employer’s broader risk management approach, including case management, specialty pharmacy oversight, care navigation, and centers of excellence to help manage high-cost claims while improving employee outcomes.
Looking Ahead
As healthcare costs continue to rise, high-cost claims will remain one of the greatest financial challenges facing self-funded employers.
By helping clients understand their claims experience, evaluate retained risk, scrutinize contract provisions, and prepare early for renewal, consultants can position stop-loss as more than an annual insurance purchase. It becomes part of a broader strategy for managing financial risk and supporting the long-term stability of the self-funded health plan.
To learn more, check out our latest podcast, Leveraging Stop-Loss Data to Manage Shifting Healthcare Costs.