Chapter 18 — Further Reading

Grouped by the book's three citation tiers. Tier 1 is verified canonical (real statutes, frameworks, and institutions you can stand behind); Tier 2 is attributed but with specifics that change and must be checked against current sources; Tier 3 is the chapter's own constructed teaching material.

If you read only one thing: read the text of the Affordable Care Act's market-reform provisions themselves — the guaranteed-issue and rating-rule sections — alongside a plain-language summary from a non-partisan health-policy source. Nothing teaches the end of individual medical underwriting as clearly as seeing, in the statute, the carrier's freedom to select and price by health being switched off, and then watching the rest of the law assemble the scaffolding to hold up the pool that can no longer underwrite itself.

Tier 1 — Verified canonical

  • The Affordable Care Act (Patient Protection and Affordable Care Act, 2010; core market reforms effective January 1, 2014). The statute itself is the primary source for guaranteed issue, adjusted community rating, the rating-factor limits, the medical-loss-ratio rule, risk adjustment, and the (transitional) reinsurance and risk-corridor programs. Read the market-reform provisions directly before reading commentary on them.
  • The McCarran-Ferguson Act (1945). The framework (owned by Chapter 4) that establishes state primacy in insurance regulation — essential background for why self-funded employer plans, governed largely by federal employee-benefit law rather than state insurance regulation, sit in a different regulatory world from insured plans.
  • Medicare and the federal Medicare Supplement (Medigap) framework. The public rules establishing the Medigap open-enrollment period, the guaranteed-issue situations, and the conditions under which medical underwriting of Medigap applicants is and is not permitted — the §18.5 material.
  • The Genetic Information Nondiscrimination Act (GINA, 2008). Introduced in Chapter 17; relevant here as the federal limit on the use of genetic information in health coverage, a piece of the broader health-underwriting legal landscape.
  • The National Association of Insurance Commissioners (NAIC) model laws and Medigap model regulation. The NAIC's standardized Medicare Supplement plan structure and its model rules are the backbone of how Medigap is sold and underwritten across states.
  • The Institutes (AINS / CPCU) health and group-benefits material. The professional curriculum defining the working vocabulary of group health, self-funding, and stop-loss for North American practitioners.

Tier 2 — Attributed, specifics unverified

  • Reputable non-partisan health-policy research organizations' explainers on the ACA markets, risk adjustment, and the medical-loss ratio. The broad mechanics (how risk-adjustment transfers work, what the MLR rebate does) are well attested; specific transfer amounts, rebate totals, enrollment figures, and premium trends change every year and must be checked against the current year's data — do not quote a figure from memory.
  • Industry and actuarial literature on self-funding and stop-loss (benefits-consulting and actuarial- society material). The structures described in §18.4 — specific vs. aggregate attachments, the conventional ~125% aggregate factor, contract-basis conventions (12/12, 12/15, 12/18), lasering, run-in and run-out — are standard industry practice; exact attachment levels, pricing, and prevalence vary by carrier, market, and year.
  • Trade reporting on the post-ACA growth of self-funding among mid-size employers. The directional claim (that the ACA's rules pushed more employers toward self-funding and stop-loss) is widely reported; treat any precise share or growth-rate figure as something to verify against a current source.
  • Analyses of the individual-mandate penalty reduction to zero and its effect on the individual pool. The adverse-selection logic is sound and the direction is widely discussed; the magnitude of the effect is debated and varies by study — keep it qualitative.

Tier 3 — Illustrative / constructed

  • The Harbor Steel & Fabrication group-health adjacency (the §18 Underwriting File aside) — constructed teaching example. Harbor Steel's ~180-employee size, its self-funding-with-stop-loss option, and the illustrative attachment ranges are chosen to locate health underwriting in a concrete employer, not drawn from any real account.
  • Case Study 2, "The Self-Funded Employer and the Stop-Loss Surprise" — a clearly labeled composite built from recurring, well-documented stop-loss patterns (the laser dispute, the contract-basis gap, the renewal shock). No real employer, carrier, or claimant; every dollar figure is illustrative.
  • The worked credibility-blend, stop-loss, and risk-adjustment examples (the PMPM figures, the \$200,000 specific / 125% aggregate illustration, the diagnosis-coding example) — round numbers chosen to make the mechanics legible, not real market data.