12.1 Health Insurance Concepts, Perils, and Cost-Containment

What Health Insurance Covers

Health insurance transfers the financial consequences of two insured perils to an insurer in exchange for a premium. The two perils are accident (an unforeseen, unintended, sudden bodily injury) and sickness (an illness or disease that first manifests while coverage is in force).

The exam tests the distinction sharply. An accident is sudden and external; a sickness develops internally over time. A policy can cover both, or an accident-only policy can cover injury alone. The cause of loss determines which benefits apply and which exclusions may bar a claim.

• Medical expense insurance reimburses the cost of treatment (hospital, surgical, physician, drugs).
• Disability income insurance replaces lost wages while the insured cannot work.
• Long-term care insurance funds custodial and skilled care.
• Dental, vision, and limited (dread-disease) plans cover narrow categories.

Morbidity vs. Mortality

Life insurance is priced on mortality (the rate of death). Health insurance is priced on morbidity — the incidence of sickness and injury in a defined population over time. Insurers use morbidity tables to project the frequency and severity of claims.

Trap: Candidates confuse morbidity with mortality. Remember: morbidity = sickness rate; both rise with age, which is why health premiums climb as insureds get older (subject to the ACA 3:1 age band).

The Four Cost-Sharing Levers

Every medical plan allocates cost between the insured and the insurer using four tools:

1. Deductible — a fixed amount the insured pays each year before the plan pays anything.
2. Copayment (copay) — a flat dollar charge for a specific service (for example, $30 per office visit).
3. Coinsurance — a percentage split of covered charges after the deductible (for example, plan 80% / insured 20%).
4. Out-of-pocket (OOP) maximum — the annual ceiling on the insured's own spending; once reached, the plan pays 100% of covered, in-network charges.

Critical rule: The premium never counts toward the OOP maximum. Only deductibles, copays, and coinsurance on covered, in-network services accumulate toward it.

Worked Coinsurance Example

Covered bill after deductible: $20,000
Coinsurance: 80/20
Insurer pays: $20,000 x 0.80 = $16,000
Insured pays: $20,000 x 0.20 = $4,000 (until OOP max is hit)

Cost-Containment Provisions

Insurers use managed-care cost-containment features to control utilization and steer care to efficient settings:

Failure to precertify a non-emergency admission usually results in a benefit penalty (a reduced payment or a separate penalty deductible), not a complete denial, because the care may still have been medically necessary.

Coordination of Benefits and Network Cost

When a person is covered by two plans, Coordination of Benefits (COB) prevents the insured from collecting more than 100% of the loss. One plan is primary (pays first as if no other coverage existed) and the other is secondary (pays remaining eligible expenses up to its limit).

• An employee's own employer plan is primary over a plan covering the employee as a dependent of a spouse.
• For a child covered under both parents, the birthday rule makes primary the plan of the parent whose birthday (month and day, not year) falls earlier in the calendar year.

Network status also drives cost. In-network providers accept negotiated rates and cannot balance bill. Out-of-network providers may bill the difference between their charge and the plan's allowed amount, exposing the insured to costs that do not count toward the out-of-pocket maximum. Steering insureds in-network is itself a cost-containment strategy.