16.1 Health Underwriting and Risk Selection
Key Takeaways
- Underwriting selects and classifies risk to combat adverse selection; the application is always the primary information source.
- Risk classes are Preferred, Standard, Substandard (rated/issued at extra premium), and Declined (refused) — substandard is not a refusal.
- The MIB reports only coded impairments and can never be the sole reason to decline; it triggers investigation.
- Each rating table step adds about 25% of the standard premium (Table 4 = +100% = double premium).
- Producers do field underwriting and must avoid clean-sheeting; final classification is home-office underwriting.
What Underwriting Does
Underwriting is the process of evaluating applicants, classifying their risk, and deciding whether to issue coverage and at what premium. The underwriter's job is risk selection and classification — grouping applicants so that the premium charged reflects the expected loss for each class. Done well, this keeps the pool fair: low-risk insureds are not forced to subsidize high-risk ones beyond what sound pricing requires.
The central enemy of any underwriter is adverse selection — the tendency of people who expect to use coverage (the unhealthy, the high-risk) to seek insurance more aggressively than healthy people do. Underwriting, waiting periods, and pre-existing-condition rules all exist to control adverse selection.
Sources of Underwriting Information
Underwriters pull from several sources, each with a defined role:
| Source | What it provides |
|---|---|
| Application | First and primary source; applicant's own statements |
| Medical exam / paramedical | Height, weight, blood, urine, vitals |
| Attending Physician Statement (APS) | Records from the applicant's own doctor |
| MIB (Medical Information Bureau) | Coded prior findings reported by member insurers |
| Inspection / consumer report | Lifestyle, finances, habits (third-party investigator) |
| Pharmacy / Rx database | Prescription history signaling conditions |
The application is always the primary source. The MIB does not store diagnoses in plain language — it stores coded "impairments" that prompt the underwriter to investigate further. An MIB report alone can never be the sole basis for declining coverage; it is a flag, not a verdict.
Risk Classifications
After gathering information the underwriter assigns a rating class that drives the premium:
- Preferred — better-than-average health/lifestyle; lowest premium.
- Standard — average expected mortality or morbidity; baseline premium.
- Substandard (rated) — higher-than-average risk; charged an extra premium (a "table rating" or flat extra). Coverage is still issued.
- Declined — risk is uninsurable at any premium.
A common trap: a substandard applicant is not refused — they are issued at a higher premium. Refusal is the declined class. Another trap is confusing a flat extra (a fixed dollar charge per $1,000 of coverage, often used for a temporary hazard like a dangerous hobby) with a table rating (a percentage loading applied for an ongoing medical impairment).
Field vs. Office Underwriting
The producer performs field underwriting — the first screen at the point of sale. The producer must record answers accurately, ask all required questions, not coach the applicant toward favorable answers, and avoid "clean-sheeting" (omitting adverse facts to push the case through). The producer also assesses whether the applicant fits the company's target market and whether the coverage is suitable. Final risk classification, however, is office (home-office) underwriting performed by professional underwriters who alone decide the rate class and any exclusions.
An applicant with controlled but elevated risk is issued a policy at a higher-than-normal premium. This applicant has been classified as:
Health-Specific Underwriting Mechanics
Health insurance underwrites morbidity (likelihood of illness/disability) rather than mortality. Key risk-control tools:
- Pre-existing condition provision — limits coverage for conditions present before the policy started, for a stated look-back/exclusion window.
- Probationary (waiting) period — initial days during which sickness benefits are not payable (controls people buying coverage when already ill).
- Impairment rider / exclusion endorsement — permanently excludes a named condition (e.g., a bad knee) so the rest of the policy can be issued standard.
Under the ACA, individual major-medical plans may not use health status to underwrite or impose pre-existing-condition exclusions — but exam questions on general health underwriting (disability income, LTC, supplemental) still test these classic mechanics.
Selection Factors and Fair Treatment
Mortality/morbidity factors an underwriter may weigh include age, sex (where permitted), health history, build (height/weight), occupation, avocation (hobbies such as scuba or aviation), tobacco use, foreign travel, and finances. Two factors deserve special exam attention:
- Occupation and avocation are risk factors — a commercial pilot or rock climber may be rated or excluded for that hazard, not declined for who they are.
- Unfair discrimination is prohibited. An insurer may distinguish among risks on actuarially justified grounds but may not charge different rates to people of the same class and hazard. Distinctions based on protected characteristics unrelated to risk are illegal under the Unfair Trade Practices Act.
Underwriters must also confirm an insurable interest existed at the time of application and that the amount applied for is financially justified — both checks guard against speculation and against over-insurance that invites moral hazard.
Worked Example: Table Rating
Substandard cases are often expressed in rating tables, each table adding roughly 25% to the standard premium. If standard annual premium is $600 and the applicant is rated Table 4:
- Extra = 4 × 25% = 100% of standard.
- Total premium = $600 + (100% × $600) = $1,200/year.
This 25%-per-table convention is a frequently tested numeric. Know that each table step is an additive percentage of the standard premium, so a Table 2 risk pays standard + 50%, and a Table 6 risk pays standard + 150% (2.5× standard).
Insurable Interest at Application
Underwriting also confirms insurable interest must exist at the time of application: the applicant must stand to suffer a genuine loss from the insured's death or disability. Family relationships and business relationships (key-person, buy-sell, creditor-debtor) qualify. Without insurable interest the contract is void as a wager, regardless of how clean the medical file looks. This is a frequent first-screen item the producer documents in the field.
Which source of underwriting information reports only coded impairment findings — never a plain-language diagnosis — and may not by itself be the basis for declining an applicant?