6.2 Michigan Group Health Insurance
Key Takeaways
- Michigan group health is layered: ERISA, the Affordable Care Act (ACA), the Michigan Insurance Code, and the Michigan HMO Act all apply.
- Small group in Michigan = 1-50 full-time-equivalent employees; large group = 51 or more.
- Federal COBRA applies to employers with 20+ employees; Michigan mini-COBRA covers many employers with 2-19 employees for up to 18 months.
- COBRA durations are 18 months (termination/reduced hours) or 36 months (divorce, death, dependent aging out, Medicare entitlement), at up to 102% of the group rate.
- Federal/state mental health parity bars stricter cost-sharing or treatment limits on behavioral health than on comparable medical/surgical benefits.
The Regulatory Stack
No single law governs Michigan group health; several layers apply at once, and the exam expects you to know which does what.
| Law | What it controls |
|---|---|
| ERISA (federal) | Plan administration, fiduciary duties, claims/appeals for most private employer plans |
| ACA (federal) | Essential health benefits, guaranteed issue, no pre-existing-condition exclusions, dependent coverage to age 26 |
| COBRA (federal) | Continuation for employers with 20+ employees |
| Michigan Insurance Code | State-regulated insured group plans, agent conduct, claim practices |
| Michigan HMO Act | Group coverage written through HMOs |
| Michigan mini-COBRA | Continuation for many smaller employers not subject to federal COBRA |
Self-funded employer plans are largely governed by ERISA and escape state mandates; fully insured plans must also meet Michigan Insurance Code rules. This ERISA preemption is a common distractor on the exam.
Group-Size Definitions
| Segment | Full-time-equivalent (FTE) employees |
|---|---|
| Small group | 1-50 |
| Large group | 51 or more |
The 1-50 small-group line matters because small-group plans carry the strongest consumer protections:
- Guaranteed issue — the carrier cannot decline a small employer based on the group's health.
- Adjusted/modified community rating — premiums vary only by allowed factors (age, geography, tobacco, family size), not individual health status.
- Essential health benefits, mental health parity, and no pre-existing-condition exclusions.
Exam tip: A 40-employee firm is a small group (guaranteed issue applies) and is above the 20-employee COBRA threshold (federal COBRA applies). Watch the two different thresholds: 50 separates small from large, and 20 separates COBRA from mini-COBRA. A stem can place one employer on both sides of these lines at once.
Worked threshold example
A Michigan retailer employs 48 full-time-equivalent workers. It is a small group (1-50), so any plan it buys must be guaranteed issue with community-style rating and essential health benefits. Because 48 exceeds 20, a departing employee gets federal COBRA (18 months for termination), not mini-COBRA. If the same firm shrank to 16 employees, the small-group protections still apply, but continuation would shift to Michigan mini-COBRA.
Continuation Coverage: COBRA vs. Michigan Mini-COBRA
COBRA (Consolidated Omnibus Budget Reconciliation Act) lets covered persons keep the group plan after a coverage-losing event. It applies to employers with 20 or more employees.
| COBRA element | Rule |
|---|---|
| Employer size | 20+ employees |
| Premium | Up to 102% of the full group rate (100% cost + 2% admin) |
| Coverage | Identical to active employees' plan |
| Election window | At least 60 days from the later of notice or coverage loss |
COBRA Qualifying Events and Durations
| Qualifying event | Continuation period |
|---|---|
| Voluntary/involuntary termination (not gross misconduct) | 18 months |
| Reduction in hours | 18 months |
| Divorce or legal separation | 36 months |
| Death of the covered employee | 36 months |
| Dependent child loses dependent status (ages out) | 36 months |
| Employee becomes entitled to Medicare | 36 months (for dependents) |
Mnemonic: events affecting the employee's job = 18 months; events affecting the family/dependents = 36 months.
Michigan Mini-COBRA
For employers too small for federal COBRA, Michigan's state continuation law fills the gap. It generally covers groups with about 2-19 employees, offering up to 18 months of continuation. The covered person pays roughly the group rate. Mini-COBRA is the answer whenever a stem describes a small employer (e.g., 12 employees) and asks how a departing worker keeps coverage.
Mental Health Parity
Federal and Michigan parity rules require behavioral-health benefits to be no more restrictive than comparable medical/surgical benefits.
| Feature | Must be no worse than medical/surgical |
|---|---|
| Copays and coinsurance | Equal financial requirements |
| Deductibles | Common or comparable |
| Treatment/visit limits | No separate, stricter caps |
| Annual and lifetime dollar limits | No discriminatory limits |
Parity covers mental health conditions and substance-use disorders. A plan may not, for example, charge a $50 copay for a therapy visit while charging $20 for a primary-care visit.
HIPAA Portability
HIPAA bars enrollment denial based on health status, limits pre-existing-condition exclusions (now effectively eliminated by the ACA for compliant plans), provides special enrollment rights after events like marriage or birth, and protects the privacy of health information. Together these rules make group coverage portable and non-discriminatory.
Coordination of Benefits and Other Group Rules
When a person is covered by two group plans, coordination of benefits (COB) decides which pays first. The primary plan pays as if no other coverage existed; the secondary plan may cover allowable remaining charges, but total payment cannot exceed 100% of the actual expense. For dependent children covered by two working parents, the common tie-breaker is the birthday rule: the plan of the parent whose birthday falls earlier in the calendar year is primary.
Key dates to memorize
| Provision | Number to know |
|---|---|
| COBRA election period | At least 60 days |
| COBRA premium cap | 102% of group rate |
| Job-event continuation | 18 months |
| Family-event continuation | 36 months |
| Small-group ceiling | 50 FTEs |
| Mini-COBRA employer range | about 2-19 employees |
| Dependent coverage age (ACA) | to age 26 |
Memorizing this grid lets you answer most Chapter 6 group-health questions on sight, because the exam recycles these exact thresholds in varied scenario wrappers.
A Michigan employer has 12 employees. A worker leaves and wants to keep the group health plan. What applies?
Under COBRA, which qualifying event entitles a dependent to 36 months of continuation rather than 18?
How is a small group defined in Michigan, and what protection follows from it?
What is the maximum premium a plan may charge a COBRA continuee?