16.1 Health Underwriting and Risk Selection

Underwriting is the process an insurer uses to evaluate, classify, and price the risk presented by an applicant. The job of the underwriter is risk selection and classification, not customer service. The goal is to group applicants so that those with similar expected loss experience pay similar premiums, and to protect the risk pool from adverse selection.

Adverse Selection and the Law of Large Numbers

Adverse selection is the tendency of those with the greatest probability of loss to seek insurance most aggressively. A person who has just been diagnosed with a serious illness has a strong incentive to buy a large health or disability policy. If insurers could not screen, the pool would fill with high-risk insureds, claims would exceed premiums, and rates would spiral until the product collapsed. Underwriting and the law of large numbers (predictable loss across a large, similar group) keep the pool balanced.

Risk Classifications

Health and life underwriters sort applicants into broad classes. Memorize these for the exam:

Exam trap: A rated (substandard) applicant is still insurable — coverage is issued, just at a higher premium or with an exclusion rider. Declined means no policy is offered at all. Do not confuse the two.

Methods of Handling Substandard Risk

When morbidity is higher than standard, a health underwriter rarely just says no. Common tools:

• Increased (rated-up) premium — charge more to reflect the higher expected claims.
• Exclusion (impairment) rider — exclude a specific condition (e.g., a bad knee) while covering everything else.
• Probationary / extended waiting period — delay coverage for a pre-existing condition.
• Reduced benefits — lower the daily benefit or lengthen the elimination period on a DI or LTC policy.

Sources of Underwriting Information

The underwriter assembles a file from several sources. Know each source and what it provides:

The MIB is a nonprofit clearinghouse. Member insurers report coded impairments; another member finding a code must still independently verify it — an MIB code can never be the sole basis for a decline.

Field Underwriting and the Producer's Role

The producer is the field underwriter — the company's first line of risk selection. The producer asks the application questions accurately, completes the form fully, probes incomplete answers, and avoids submitting clearly uninsurable risks. Sloppy field underwriting raises the insurer's expenses and invites later disputes.

Stranger-Originated Coverage and Insurable Interest

Health and life underwriting both require insurable interest at the time of application — the applicant must suffer a genuine loss if the insured becomes ill or dies. For life, insurable interest must exist when the policy is issued (not at death). This rule blocks wagering contracts and stranger-originated life insurance (STOLI).

Worked Example — Build (Height/Weight) Rating

Suppose an insurer's manual annual premium for a Standard 40-year-old is $1,000. The applicant is significantly overweight, so the underwriter applies a build table surcharge of +50%.

• Surcharge = $1,000 x 0.50 = $500
• Rated annual premium = $1,000 + $500 = $1,500

If instead the underwriter used an exclusion rider for an unrelated knee condition, the premium would stay at $1,000 but knee-related claims would be excluded.

Key Vocabulary Traps

• Morbidity = likelihood of sickness/disability (health insurance). Mortality = likelihood of death (life insurance). Health products are priced on morbidity.
• Persistency = how long policies stay in force; high lapse rates raise costs.
• Concealment = silent withholding of a material fact; misrepresentation = a false statement. Both can void coverage if material.

STOLI and Viatical Cautions

Underwriters also watch for arrangements that lack genuine insurable interest. Stranger-originated life insurance (STOLI) schemes recruit a healthy senior to buy a large policy that investors fund and then own — the investors have no insurable interest and are essentially betting on the insured's death. Most states make STOLI illegal. A legitimate viatical or life settlement is different: the insured originally bought the policy for a valid need and later sells an in-force policy. The distinction the exam tests is intent at issue — a policy must begin with real insurable interest.

Numerical Underwriting (the Numerical Rating System)

Many insurers price substandard risk with a numerical rating system: a standard risk is assigned a baseline of 100%. Debits are added for negative factors (overweight, hypertension) and credits subtracted for favorable factors (exercise, family longevity).

For example, a base of 100 plus 40 debits for build and 25 for blood pressure equals 165, placing the applicant in the substandard range and triggering a table rating. This objective scoring helps underwriters treat similar applicants consistently.