Health insurance policies commonly include a preexisting condition exclusion period primarily to:
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Answer & full 3-part explanation (select an option above, or peek)
Why A is correct
The preexisting condition exclusion is an underwriting device that fights anti-selection (adverse selection). Without it, a person who has already developed symptoms or received a diagnosis could wait to purchase coverage, then file claims immediately, driving up premiums for the entire risk pool. The exclusion bars benefits for conditions that existed before the policy's effective date for a stated period, after which those conditions become covered. It is not a penalty on the insured but a mechanism to keep the pool balanced and premiums affordable. This purpose is central to the preexisting condition terminology under the general concepts of medical and disability insurance (AH-II.1).
Why the other options are wrong
- B) The preexisting condition exclusion is a benefit limitation and has nothing to do with cancellation. Whether an insurer may cancel or refuse renewal is controlled by the policy's renewability provision, which ranges from cancellable to noncancelable; the exclusion neither creates nor removes any cancellation right.
- C) The exclusion applies only to conditions that existed before the policy's effective date and runs for a stated period. Treatment for new illnesses, injuries, or conditions that first arise after the effective date remains covered subject to the policy's normal terms, deductibles, and coinsurance.
- D) There is no discount or pricing feature attached to a preexisting condition exclusion. The exclusion is purely a limitation on benefits designed to control anti-selection; it does not allow the policyholder to add known conditions at a reduced premium or otherwise.
Memory hook
Preexisting exclusion is the gate that stops people buying insurance after they get sick.