9.1 Health Insurance Concepts and Defining the Insured
Key Takeaways
- Deductible is a fixed amount paid before the plan pays; coinsurance is a percentage split afterward; a copay is a fixed amount per service.
- Premiums never count toward the deductible or the out-of-pocket maximum; once the OOP max is reached, the plan pays 100% of covered services.
- Under COB, the employee's own plan is primary over a plan covering them as a dependent, and no insured may collect more than 100% of a claim.
- The birthday rule makes primary the plan of the parent whose birthday (month/day only) falls earlier in the calendar year.
- ACA requires coverage of adult children to age 26 and automatic coverage of newborns and adopted children from birth or placement.
Health insurance reimburses or indemnifies an insured for the cost of medical care and the loss of income caused by sickness or accidental injury. On the national portion of the Life & Health exam, expect heavy testing on the vocabulary that defines how costs are shared and who is covered. Master the precise mechanics, not just the names.
Core Cost-Sharing Terms
Four terms control how an insured and insurer split a claim. Confusing them is the single most common exam trap.
| Term | Definition | Resets when? |
|---|---|---|
| Premium | The amount paid (usually monthly) to keep coverage in force | N/A |
| Deductible | Fixed dollar amount the insured pays before the plan pays | Each calendar/policy year |
| Coinsurance | Percentage split of covered costs after the deductible (e.g., 80/20) | Until out-of-pocket max is met |
| Copayment | Fixed dollar amount for a specific service (e.g., $30 office visit) | Per service |
The out-of-pocket maximum is the most an insured pays in a year; once reached, the plan pays 100% of covered services. Premiums never count toward the deductible or the out-of-pocket maximum.
Worked Cost-Share Example
A plan has a $2,000 deductible, 20% coinsurance, and a $6,000 out-of-pocket maximum. The insured incurs a $40,000 covered hospital bill.
- Insured pays the $2,000 deductible first.
- Of the remaining $38,000, coinsurance at 20% would be $7,600.
- But the out-of-pocket cap stops the insured at $6,000 total ($2,000 deductible + $4,000 coinsurance).
- The insurer pays the remaining $34,000.
Always check whether coinsurance would push the insured past the out-of-pocket maximum; the cap overrides the raw percentage.
Defining the Insured
Health policies must define who is covered. Key terms:
- Insured — the person whose health/loss is covered.
- Dependents — typically a spouse and children. Under the ACA, adult children may stay on a parent's plan to age 26 regardless of student, marital, residency, or financial status.
- Newborns and adoptive children — must be covered automatically from the moment of birth or placement; the insurer may require notice (often within 31 days) to continue coverage beyond the initial period.
Perils, Hazards, and Insurable Interest
Health insurance covers two perils: sickness (illness or disease) and accidental injury. The cause matters because some provisions and benefit periods differ for accident versus sickness.
- A peril is the cause of loss (e.g., a fall).
- A hazard increases the chance or severity of a loss. A physical hazard is a bodily condition; a moral hazard is dishonesty (faking a claim); a morale hazard is carelessness from having coverage.
- Insurable interest in health insurance exists at the time of application — a person always has insurable interest in their own health and in close family members.
Coordination of Benefits (COB)
When a person is covered by two plans, COB prevents collecting more than 100% of the bill. One plan is primary (pays first as if no other coverage exists) and the other is secondary (may pay the remaining allowed balance). The plan covering the person as an employee is primary over a plan covering them as a dependent.
The Birthday Rule
When a child is covered under both parents' plans, the birthday rule decides which plan is primary: the plan of the parent whose birthday falls earlier in the calendar year (month and day only — the year of birth is irrelevant). If both parents share the same birthday, the plan in force the longest is primary.
COB worked example: A child has an $800 covered bill. The mother's plan (primary, birthday in March) pays $600 per its schedule. The father's plan (secondary, birthday in September) may cover up to the remaining $200, so the family pays $0 if both allow the charge. The insured never profits from dual coverage.
Loss Exposure and the Need for Coverage
Health insurance addresses two distinct financial exposures. The first is medical expense — the direct cost of treatment, hospitalization, and prescriptions. The second is loss of income — the wages an insured cannot earn while sick or disabled. A single policy rarely covers both well, which is why medical expense plans and disability income plans are sold separately. On the exam, link the exposure to the right product: hospital bills point to medical expense insurance, while replacing a paycheck points to disability income insurance.
Indemnity vs. Reimbursement vs. Valued Benefits
The way a benefit is paid is frequently tested:
- Reimbursement (expense-incurred) plans pay the actual cost of covered services up to a limit — the standard for medical expense insurance.
- Indemnity (fixed-amount) plans pay a set dollar amount per day or per event regardless of actual cost, common in hospital indemnity and limited-benefit plans.
- Service plans (like classic Blue Cross/Blue Shield) pay providers directly under contract rather than reimbursing the insured.
Eligibility, Enrollment, and the Insured's Status
The applicant is the person applying; the insured is the person covered; the policyowner holds the contract rights. In group health, the certificate holder is the covered employee, and the master contract is held by the employer.
Key enrollment concepts the exam tests:
- Open enrollment — a defined annual window to enroll without medical underwriting on ACA-compliant individual plans.
- Special enrollment period (SEP) — triggered by qualifying life events such as marriage, birth/adoption, or loss of other coverage, allowing mid-year enrollment.
- Probationary (waiting) period — a delay after the effective date before certain conditions (or all sickness) are covered.
- Eligibility period — the window in group plans during which new employees may enroll without evidence of insurability.
Misreading 'open enrollment' as the same thing as a 'special enrollment period' is a frequent test error — open enrollment is scheduled and predictable, while an SEP requires a triggering event.
An insured has a plan with a $1,500 deductible, 20% coinsurance, and a $5,000 out-of-pocket maximum. After a $30,000 covered claim, how much does the insured pay?
A child is covered under both parents' health plans. The mother's birthday is May 4, 1985, and the father's birthday is February 12, 1990. Under the birthday rule, which plan is primary?