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💰 '''High-cost claimant''' is an [[Definition:Insured | insured]] individual whose [[Definition:Claims | claims]] expenses significantly exceed the average for a given [[Definition:Health insurance plan | health insurance plan]] or [[Definition:Risk pool | risk pool]], often due to catastrophic illness, complex surgical procedures, or chronic conditions requiring intensive ongoing treatment. In health insurance, a small fraction of members — frequently cited as the top 1% to 5% — can account for a disproportionate share of total plan expenditures, making high-cost claimant management one of the most consequential challenges facing [[Definition:Insurance carrier | carriers]] and [[Definition:Self-insured plan | self-insured employers]] alike.

⚙️ Carriers identify and manage these individuals through several mechanisms. [[Definition:Predictive analytics | Predictive analytics]] models flag members whose utilization patterns, diagnoses, or prescription profiles suggest they are likely to generate outsized costs. Once identified, high-cost claimants are often enrolled in [[Definition:Care management | care management]] or [[Definition:Disease management | disease management]] programs designed to coordinate their treatment, reduce avoidable hospitalizations, and improve [[Definition:Health outcome | health outcomes]]. On the financial side, insurers mitigate the volatility these claimants introduce through [[Definition:Stop-loss insurance | stop-loss coverage]] — either specific stop-loss that caps exposure on any single member or aggregate stop-loss that limits total plan-level losses — and through [[Definition:Reinsurance | reinsurance]] arrangements that transfer catastrophic risk to a third party.

🔍 Failing to account for high-cost claimants can devastate a plan's financial performance. A single transplant case, premature infant requiring neonatal intensive care, or member on a specialty biologic drug can swing a small group's [[Definition:Loss ratio (L/R) | loss ratio]] by dozens of percentage points in a single year. [[Definition:Actuary | Actuaries]] must build sufficient margin into [[Definition:Premium | premiums]] to absorb this tail risk, while [[Definition:Underwriting | underwriters]] scrutinize renewal data for emerging high-cost trends. For [[Definition:Insurtech | insurtech]] companies, developing tools that provide earlier identification and more effective intervention for these members represents one of the highest-value opportunities in health insurance innovation.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Stop-loss insurance]]
* [[Definition:Care management]]
* [[Definition:Predictive analytics]]
* [[Definition:Risk pool]]
* [[Definition:Reinsurance]]
* [[Definition:Loss ratio (L/R)]]
{{Div col end}}

Definition:High-cost claimant - Revision history

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