16.1 Health Underwriting and Risk Selection

What Underwriting Does

Underwriting is the process of evaluating an applicant's risk, deciding whether to issue coverage, and setting the premium that matches that risk. The underwriter's job is risk selection and risk classification, not sales. The goal is to keep the risk pool balanced so that premiums collected are adequate to pay expected claims plus expenses and a margin.

The central problem underwriting solves is adverse selection: people who know they are higher risk tend to apply for more insurance, and at standard rates. If insurers accepted everyone at one price, healthy applicants would be overcharged, leave the pool, and drive premiums into a spiral. Underwriting, medical questions, and the contestability period all exist to counter adverse selection.

Core Underwriting Objectives

Exam trap: The producer does field underwriting (gathering accurate information on the application). The home-office underwriter makes the final accept/decline/rate decision. Do not confuse the two roles.

Underwriting also relies on three predictive disciplines the exam may name: mortality (probability of death, the basis of life pricing), morbidity (probability of illness or disability, the basis of health pricing), and the law of large numbers (as the number of similar exposures grows, actual loss experience approaches the predicted average). These let an insurer price an individual policy from group statistics.

A risk is insurable only if it is one of a large number of homogeneous, independent units, the loss is measurable and not catastrophic to the insurer, and the chance of loss is calculable — concepts you will see again in claims and reinsurance questions.

Standard Risk Classifications

Applicants are sorted into rate classes by their mortality or morbidity risk relative to the standard pool. From best to worst:

Tobacco use generally pushes an applicant down one classification; a smoker typically pays roughly two to three times the non-smoker premium for the same coverage.

Pricing Substandard Risks

When risk is above standard but still insurable, the insurer charges extra in one of two ways:

• Table rating method — the substandard risk is placed on a table (Table 1, 2, 3...). Each table step adds approximately 25% of standard mortality. So Table 4 means roughly 100% extra mortality (200% of standard).
• Flat extra premium — a fixed dollar amount per $1,000 of coverage, added for a temporary or specific hazard (e.g., a dangerous hobby or a recovering condition). A flat extra can be temporary or permanent and does not change the base rate class.

Worked example: A male applicant qualifies for Standard at $1.20 per $1,000 but is rated Table 4. Table 4 ≈ 100% extra mortality, so his rate is about $1.20 × 2.00 = $2.40 per $1,000. On a $250,000 policy that is 250 × $2.40 = $600 mortality cost instead of $300.

When the higher risk is tied to a specific medical condition rather than overall mortality, the underwriter may instead attach an exclusion (impairment) rider that removes coverage for losses arising from that named condition, allowing the rest of the policy to be issued at standard rates. The underwriter's tool kit therefore has four responses to extra risk: rate it (table), add a flat extra, exclude a hazard with a rider, or decline. Choosing among them balances issuing business against protecting the pool.

Sources of Underwriting Information and Group Underwriting

Underwriters draw on several information sources, and exam questions frequently test which source supplies what:

• Application — primary source; the applicant's statements are representations, not warranties.
• Medical exam / paramedical / APS — an Attending Physician's Statement (APS) is requested from the applicant's own doctor for specific medical history.
• MIB (Medical Information Bureau) — a nonprofit member exchange of coded medical information that flags discrepancies; it is a lead, never the sole basis for a decision.
• Inspection report / consumer report — gathers lifestyle and financial information (Fair Credit Reporting Act applies, covered in 16.2).

Individual vs. Group Health Underwriting

Group plans control adverse selection through participation requirements (e.g., 75% of eligible employees must enroll in a contributory plan; 100% in a noncontributory plan) and an actively-at-work provision so that only working employees are added at the effective date.

Exam trap: In a noncontributory group plan the employer pays the full premium, so 100% participation is required and there is little adverse selection. In a contributory plan employees share the cost, so a lower participation threshold (commonly 75%) is set.

Group underwriters also examine the nature of the group (it must exist for a reason other than buying insurance), the flow of new members through the group (new hires dilute aging risk), and the stability and size of the group. Larger groups are credible enough to be experience-rated (priced on the group's own claims history), while small groups are community-rated (priced on a pooled rate for all similar small groups). This is why a 12-life employer cannot expect the same renewal pricing flexibility as a 5,000-life employer.