16.1 Health Underwriting and Risk Selection

Underwriting is the process of evaluating, classifying, and pricing risk so the insurer collects a premium adequate for the expected losses of each insured. The underwriter's central job is risk selection: deciding whether to accept an applicant, and on what terms. Two principles drive every decision. Adverse selection is the tendency of those most likely to suffer a loss to seek insurance most aggressively; sound underwriting screens it out. The law of large numbers lets the insurer predict aggregate losses accurately only when the insured pool resembles the mortality or morbidity assumptions used in pricing.

Risk Classification

Applicants are sorted into classes so that each class pays a premium matching its expected loss. The four standard classes are:

Exam Tip: A rated policy is a substandard policy issued at a higher premium, NOT a denial. Rating lets the insurer cover impaired risks profitably instead of declining them.

Methods of Rating Substandard Risks

Substandard health risks are handled with one of three methods:

• Flat extra premium — a fixed dollar charge per $1,000 of coverage, used for temporary or hazardous-occupation risks (e.g., $5 per $1,000 for a few years).
• Rate-up (table rating) — the applicant is treated as if older than actual age, or assigned a numbered table (Table A, B, C...) each adding roughly 25% mortality.
• Exclusion rider / impairment rider — coverage is issued at standard premium but a specific condition or activity is excluded from the benefit.

Morbidity vs. Mortality

Health underwriters rely on morbidity tables (the incidence of sickness and disability in a population), while life underwriters rely on mortality tables (the incidence of death). Health risk factors include physical condition, occupation (hazard class), financial status, moral hazard (dishonest intent) and morale hazard (carelessness from having coverage), tobacco use, avocations, and foreign travel.

Worked Numeric: Numeric Rating Example

The numerical rating system assigns a debit (negative) or credit (positive) point value to each risk factor and sums them against a standard baseline of 100. Suppose an applicant scores: build +30 debits (overweight), blood pressure +20 debits, family history +10 debits, and a -5 credit for non-smoking and exercise.

• Baseline standard = 100
• Total adjustment = 30 + 20 + 10 − 5 = +55 debits
• Result = 100 + 55 = 155

Most insurers treat 75–125 as standard, 126–500 as substandard (rated), and above 500 as declined. A score of 155 lands the applicant in the substandard range, typically issued at roughly Table 2–3 with a premium load of about 50% over standard.

How ACA Reshaped Health Underwriting

For ACA-compliant individual and small-group plans, insurers may not use health status, gender, or pre-existing conditions to rate or deny. Premiums vary only by the four allowed factors below — a frequent exam point because it overturns the old medical-underwriting model.

Where Underwriting Still Lives

Full medical underwriting persists in non-ACA lines: disability income, long-term care, individual life, and short-term/limited medical. There the underwriter uses the application, APS, exams, MIB, and prescription databases to classify risk as preferred, standard, or substandard.

Worked Example: A 55-year-old smoker buying an ACA marketplace plan pays more than a 25-year-old only because of the 3:1 age band and 1.5:1 tobacco factor — never because of diabetes or prior claims. The same applicant seeking individual disability coverage, however, faces full health underwriting and could be rated or declined.

Exam Distinction: "Guaranteed issue" plus "community rating" defines the ACA individual market; classic risk classification still governs DI, LTC, and life. Mixing these is a common trap.

The Role of the Underwriter vs. the Producer

The home-office underwriter makes the final acceptance decision. The producer performs field underwriting — the first screen of risk at the point of sale — by completing the application accurately, asking the required health and lifestyle questions, observing the applicant, and submitting a producer's (agent's) report. Producers must never engage in field underwriting abuse, such as advising an applicant to omit a condition or steering an unhealthy applicant to a simplified-issue product to dodge a medical exam.

Underwriting Trade-offs

Guaranteed-issue products accept all applicants, so they carry low benefit caps and often a graded death benefit (return of premium plus interest, not full face, if death occurs in the first two to three years) to control adverse selection.

Insurable Interest and Consent

Before any risk is selected, two threshold requirements must exist at the time of application. Insurable interest means the policyowner must stand to suffer a genuine loss from the insured event — present automatically for one's own life, a spouse, or a dependent, and in business cases for a key employee or partner. Consent of the insured is generally required for a third-party policy. Unlike property insurance, life insurance requires insurable interest only at inception, not at the time of the claim; a properly issued policy stays valid even if the relationship later ends.

The STOLI and Rebating Traps

Underwriters watch for stranger-originated life insurance (STOLI), an arrangement in which investors lacking insurable interest induce an individual to buy a policy that is then transferred to them. STOLI is prohibited because it converts life insurance into a wager on a stranger's death. Producers must also avoid rebating — returning part of the premium or giving anything of value not stated in the policy to induce a purchase — which distorts fair risk pricing and is an unfair trade practice in nearly every state.

Exam Tip: Insurable interest must exist when the policy is issued, not when the insured dies. This distinguishes life insurance from property and casualty insurance, where insurable interest must exist at the time of loss.