16.1 Health Underwriting and Risk Selection

Underwriting is the process by which an insurer evaluates an applicant's risk, decides whether to issue coverage, and sets the premium. For health and life insurance, the underwriter's central job is risk selection and classification so that each insured pays a premium that fairly reflects the likelihood and cost of a future claim. Done well, underwriting protects the insurer's pool from adverse selection — the tendency of higher-risk individuals to seek insurance more aggressively than lower-risk individuals.

The Three Pillars: Hazards, Risks, and Selection

Underwriters evaluate three categories of hazard that increase the chance or severity of loss:

• Physical hazard — a bodily condition that raises risk, such as diabetes, obesity, or a heart murmur.
• Moral hazard — a tendency to act dishonestly, such as overstating income on a disability application or a history of insurance fraud.
• Morale hazard — carelessness or indifference to loss because insurance exists ("the insurer will pay anyway").

A pure risk (chance of loss only, no chance of gain) is insurable; a speculative risk (gambling, business ventures) is not. The law of large numbers lets insurers predict aggregate losses accurately across a large pool even though any single loss is unpredictable.

Risk Classification

After gathering information, the underwriter assigns the applicant to a class. The standard tiers from best to worst are:

Substandard risks are handled with a rated policy in one of three ways: a flat extra premium, a rate-up (charging the premium of an older age), or a table rating (e.g., Table 2 = standard plus 50%, Table 4 = standard plus 100%). A health policy may also attach an impairment rider (exclusion rider) that waives coverage for a specific named condition rather than rating the whole policy.

Worked Example — Table Rating

Suppose a standard annual premium is $1,200 and each table adds 25% of standard. An applicant rated Table 4 pays: $1,200 + (4 × 25% × $1,200) = $1,200 + $1,200 = $2,400. Memorize that each table generally adds 25% of the standard premium; the exam frequently tests this multiply-and-add calculation.

Group vs. Individual Underwriting

The scope of medical underwriting differs sharply by market:

• Individual major medical sold on the ACA marketplace is guaranteed issue — no health underwriting, no preexisting-condition exclusions, and only five rating factors (age, geography, tobacco use, family size, and plan tier).
• Group health uses experience rating (claims history of the group) or community rating and underwrites the group as a whole, not each member. Large groups are usually guaranteed issue with no individual evidence of insurability.
• Disability and long-term care remain individually underwritten with full medical evidence because morbidity, not just mortality, drives the cost.

Sources of Underwriting Information

Underwriters do not rely on the application alone. The principal information sources are:

• The application itself, including Part II medical questions.
• Attending Physician Statement (APS) — requested from the applicant's doctor when the application reveals a treated condition.
• Paramedical or medical exam — height, weight, blood pressure, blood and urine samples; ordered above certain face amounts or ages.
• Medical Information Bureau (MIB) — a nonprofit clearinghouse where member insurers report coded conditions to flag inconsistencies and deter fraud.
• Consumer and investigative consumer reports — credit, public records, and personal interviews, governed by the Fair Credit Reporting Act.
• Inspection report and MVR (motor vehicle record) for lifestyle and driving risk.

The insurer must order more evidence as the face amount and applicant age rise, because the dollar exposure to mortality risk grows. A 25-year-old buying $50,000 of term may need only the application; a 55-year-old buying $2 million typically requires a full paramedical exam, blood profile, and APS.

Numeric vs. Judgment Rating

Life and health underwriters often use the numerical rating system: a standard risk starts at 100 points, debits are added for impairments (e.g., +50 for controlled hypertension) and credits subtracted for favorable factors (e.g., −15 for ideal weight and nonsmoking). A total of 100–125 is usually standard; 126–500 is substandard and rated; above roughly 500 the case is declined. This produces consistent, defensible decisions across thousands of applications and is why two applicants with identical conditions receive the same class.

Common Exam Traps

• The insurer — the home-office underwriter — has final authority to accept, rate, or decline. The producer performs only field underwriting (initial screening and accurate application completion).
• A conditional receipt binds coverage as of the application or medical-exam date only if the applicant is found insurable as a standard risk; it is not unconditional acceptance.
• Adverse selection is a problem the underwriter prevents, not a risk class.
• The MIB shares coded medical information among members but cannot be the sole basis for a declination — the insurer must independently verify any flagged condition before acting on it.