15.1 ACA Essential Health Benefits and Metal Levels
Key Takeaways
- ACA-compliant individual and small-group plans must cover all ten Essential Health Benefit categories.
- Pediatric oral and vision care is an EHB; adult dental and vision are not.
- ACA bans annual and lifetime dollar limits on EHBs and requires in-network preventive care with no cost-sharing.
- Metal levels reflect actuarial value: Bronze 60%, Silver 70%, Gold 80%, Platinum 90%.
- Catastrophic plans are limited to enrollees under 30 or hardship-exempt and cannot use premium tax credits.
The Patient Protection and Affordable Care Act (ACA), enacted in 2010, reshaped the individual and small-group health markets. For the licensing exam, you must know what the law requires every non-grandfathered individual and small-group plan to cover, how plans are categorized by generosity, and the consumer protections that override traditional underwriting. This section focuses on Essential Health Benefits (EHBs) and the metal levels.
Essential Health Benefits (EHBs)
Every qualified health plan (QHP) sold to individuals and small groups must cover ten categories of EHBs. A plan that omits any category is not ACA-compliant and cannot be sold on the Marketplace. Memorize the ten categories — exam questions frequently ask which item is not an EHB (cosmetic surgery, adult dental, and long-term custodial care are common distractors).
| # | Essential Health Benefit Category |
|---|---|
| 1 | Ambulatory (outpatient) patient services |
| 2 | Emergency services |
| 3 | Hospitalization |
| 4 | Maternity and newborn care |
| 5 | Mental health and substance use disorder services |
| 6 | Prescription drugs |
| 7 | Rehabilitative and habilitative services and devices |
| 8 | Laboratory services |
| 9 | Preventive and wellness services and chronic disease management |
| 10 | Pediatric services, including oral and vision care |
Trap: Pediatric vs. Adult Dental/Vision
Pediatric oral and vision care is an EHB; adult dental and vision are not. This is a favorite exam distinction. Preventive services (immunizations, screenings, contraception) must be covered with no cost-sharing when delivered in-network — no copay, coinsurance, or deductible applies.
No Annual or Lifetime Dollar Limits
ACA prohibits annual and lifetime dollar limits on EHBs. A plan may still impose limits on the number of covered visits (for example, a cap on chiropractic visits), but it cannot say "$1,000,000 lifetime maximum on hospitalization." Pre-ACA plans routinely used lifetime caps; their elimination is a core consumer protection.
Metal Levels and Actuarial Value
QHPs are grouped into four metal levels plus a limited catastrophic option. The metal level reflects actuarial value (AV) — the percentage of total average covered medical costs the plan pays for a standard population. AV does not describe an individual's costs; it is a benchmark across the covered group.
| Metal Level | Actuarial Value (plan pays) | Member pays (avg) |
|---|---|---|
| Bronze | 60% | 40% |
| Silver | 70% | 30% |
| Gold | 80% | 20% |
| Platinum | 90% | 10% |
| Catastrophic | <60% (HDHP-style) | Highest |
Reading the Trade-off
- Bronze: lowest premium, highest out-of-pocket cost when care is used. Good for healthy enrollees expecting little care.
- Platinum: highest premium, lowest cost at point of service. Good for high utilizers.
- AV bands carry a +/- 2% tolerance (a "de minimis" variation), so a Silver plan may have an AV of roughly 68–72%.
Catastrophic Plans
Catastrophic coverage is available only to people under 30 or those who qualify for a hardship/affordability exemption. These plans cover the three primary-care visits and preventive services required by law, then apply the full out-of-pocket maximum before cost-sharing help kicks in. Premium tax credits cannot be used to buy a catastrophic plan — a frequent exam point.
Worked Example: AV in Practice
Suppose a covered population incurs $10,000 in average annual medical costs. A Gold plan with 80% AV is expected to pay about $8,000 and leave members responsible for about $2,000 collectively. This is an actuarial projection across the group — a single member could pay far more or far less depending on actual claims.
Grandfathered and Grandmothered Plans
Not every plan must meet every ACA rule. A grandfathered plan existed before March 23, 2010, and has not made significant benefit cuts or cost-sharing increases since; it is exempt from some ACA requirements (such as covering all EHBs) but must still honor core protections like the ban on lifetime limits and the dependent-coverage-to-26 rule. A plan that loses grandfathered status by materially changing benefits becomes a non-grandfathered plan and must fully comply. Exam questions may ask which protections survive even on a grandfathered plan — the dependent-to-age-26 mandate and the lifetime-limit ban are common correct answers.
Dependent Coverage to Age 26
ACA requires plans offering dependent coverage to make it available to an enrollee's children up to age 26, regardless of the child's marital status, residency, student status, financial dependency, or eligibility for other coverage. This is one of the most widely tested single facts in the national health portion.
Medical Loss Ratio
The Medical Loss Ratio (MLR) rule requires insurers to spend a minimum percentage of premium dollars on medical claims and quality improvement rather than administration and profit: at least 80% in the individual and small-group markets and 85% in the large-group market. Insurers that fall short must issue rebates to policyholders. The MLR rule protects consumers from excessive overhead and is frequently tested as a specific 80/85 split.
Which of the following is NOT one of the ten Essential Health Benefits required of ACA-compliant plans?
A Silver-level qualified health plan has an actuarial value of approximately 70%. What does this figure represent?
The Ten Essential Health Benefits and Metal-Tier Actuarial Values
ACA-compliant individual and small-group plans must cover ten Essential Health Benefits (EHBs): ambulatory (outpatient) care, emergency services, hospitalization, maternity and newborn care, mental health and substance-use treatment, prescription drugs, rehabilitative/habilitative services and devices, laboratory services, preventive/wellness and chronic-disease management, and pediatric services (including oral and vision for children). Preventive services must be covered at 100% with no cost-sharing in network.
Metal Tiers — Actuarial Value Defined
Plans are categorized by actuarial value (AV) — the percentage of total covered medical costs the plan pays for a standard population (not for any individual):
| Tier | Plan pays (AV) | Member shares |
|---|---|---|
| Bronze | ~60% | ~40% |
| Silver | ~70% | ~30% |
| Gold | ~80% | ~20% |
| Platinum | ~90% | ~10% |
A catastrophic plan (under-30s or hardship-exempt) covers EHBs after a high deductible and is below Bronze. Higher metal = higher premium but lower out-of-pocket cost at the point of care.
Worked AV Trap
A Bronze (60% AV) plan does not mean the member pays 40% of every bill — AV is a population average. An individual could hit the out-of-pocket maximum and have the plan pay far more than 60% of their costs that year, while a healthy member pays nearly all their (small) costs out of pocket. The exam tests that AV describes the plan's share across a standard population, not an individual's coinsurance rate.
Annual Out-of-Pocket Maximum
All ACA plans cap in-network out-of-pocket spending for EHBs at a federally set annual maximum (indexed yearly), after which the plan pays 100%. Deductibles, coinsurance, and copays count toward it; premiums do not. This cap, combined with the EHB floor and the ban on lifetime/annual dollar limits, is what distinguishes ACA "minimum essential coverage" from pre-ACA plans with hard internal caps.