Coinsurance -  is the percentage of costs you pay for covered medical services after you’ve met your deductible.

Copay (short for copayment)-  is a fixed amount you pay out of pocket for certain covered health care services, usually at the time you receive care.

It’s one of the main ways health insurance companies share costs with you, along with deductibles and coinsurance..

Deductible - is the amount you pay each year for covered medical expenses before your plan begins to pay its share.



🗓️ 1. AEP — Annual Enrollment Period

Meaning:
The Annual Enrollment Period (AEP) is the yearly window when you can enroll in, change, or drop a health insurance plan.

Where it’s used:
Primarily for Medicare and Marketplace (Affordable Care Act) plans.

Typical timing:

Medicare AEP: October 15 – December 7 every year.

🔁 2. SEP — Special Enrollment Period

Meaning:
A Special Enrollment Period (SEP) is a limited time outside the AEP when you can sign up for or change health insurance due to a qualifying life event.

Common qualifying events:

Losing other health coverage (job loss, aging out of parents’ plan)

Moving to a new area

Marriage or divorce

Having or adopting a baby

Change in income affecting subsidy eligibility

Length:
Typically, you have 60 days from the event to make changes.



🏥 In Healthcare / Medicare: IEP = Initial Enrollment Period

Meaning:
The Initial Enrollment Period (IEP) is the first time you can sign up for Medicare when you become eligible — usually around your 65th birthday.

🗓️ Timing:

Your IEP lasts 7 months:

Starts 3 months before the month you turn 65

Includes your birthday month

Ends 3 months after your birthday month

🩺 During your IEP, you can:

Enroll in Medicare Part A (hospital insurance) and Part B (medical insurance)

Join a Medicare Advantage plan (Part C)

Add a Part D (prescription drug plan))