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Healthcare: The Biggest Mistakes Expats Make (and How to Avoid Them)
- May 6
- 3 min read
Updated: May 13
Moving to a new country comes with a long checklist: finding a home, opening a bank account, understanding taxes, learning transportation…
And somewhere in the middle of all that chaos, healthcare becomes “something to figure out later.”
Unfortunately, that delay can cost expats hundreds — sometimes thousands — of euros.
In this post, we’ll cover the most common healthcare mistakes expats make in Luxembourg and, more importantly, how to avoid them.
Mistake #1: Not Understanding That You Must Pay First
One of the biggest shocks for newcomers is discovering that medical appointments are often paid upfront.
Many expats assume:
“The insurance will pay directly.”
“I’ll just show my CNS card.”
“It works like in my home country.”
In Luxembourg, that’s usually not how it works.
Most of the time:
You pay the doctor directly
You receive an invoice
Then you request reimbursement
Mistake #2: Throwing Away Medical Documents
This happens more often than you think.
Expats frequently throw away:
Prescriptions
Payment receipts
Medical invoices
CNS letters
And later realize they needed those documents for reimbursement.
Create a simple folder (physical or digital) for:
Medical invoices
Prescriptions
CNS reimbursements
Test results
This will save you a huge amount of stress later.
Mistake #3: Not Sending Documents to CNS Correctly
A very common beginner mistake is sending incomplete reimbursement requests.
Examples:
Missing signature
Missing bank details
Sending copies instead of originals (when originals are required)
Forgetting to include proof of payment
Result: Delays, rejected reimbursements, or extra paperwork.
Smart Habit: Before sending anything to CNS, double-check:✔ Name✔ Social security number✔ Signature✔ IBAN✔ Original documents if required
Mistake #4: Choosing Doctors Without Checking Coverage
Not every doctor works under the same reimbursement conditions.
Some doctors:
Charge standard CNS-approved rates
Others charge significantly more
Many expats discover this only after receiving the invoice.
Golden Rule:Always ask: “Are you conventionné with CNS?”
This simple question can save a surprising amount of money.
Mistake #5: Using Emergency Services for Non-Emergencies
Emergency rooms in Luxembourg are excellent — but they should be reserved for real emergencies.
Some expats go to the hospital for:
Minor fevers
Mild infections
Small injuries
Result:
Long waiting times
Unnecessary stress
Higher healthcare costs
For non-urgent issues, a GP or medical center is usually the better option.
Mistake #6: Ignoring Preventive Healthcare
Many people only interact with the healthcare system when they’re sick.
But Luxembourg offers several preventive services that many expats never use.
These may include:
Health screenings
Vaccination programs
Pregnancy follow-up
Children’s preventive care
Cancer screening programs
And the surprising part?
Some of these services are partially or fully covered.
Mistake #7: Not Knowing Their Children’s Rights
Parents are often surprised to discover that children in Luxembourg may receive support for:
Eye care
Glasses
Dental treatment
Specialized medical follow-up
Many families miss these benefits simply because nobody told them they existed.
This is one of the biggest hidden-value areas in the Luxembourg healthcare system.
Mistake #8: Assuming Everything Is Automatically Reimbursed
Having CNS coverage does NOT mean:
Every doctor is fully covered
Every medication is reimbursed
Every treatment is free
Coverage depends on:
The type of treatment
Medical necessity
Whether the provider follows CNS rules
Never assume reimbursement — always verify.
The Good News
The Luxembourg healthcare system is actually very efficient and high-quality.
The problem is not the system itself.
The problem is that most expats receive very little practical guidance when they arrive.
And that’s exactly why understanding these details gives you a huge advantage.
Useful Healthcare Links in Luxembourg
Here are some official resources that can help expats better navigate the Luxembourg healthcare system:
Information about reimbursements, coverage, medical procedures, and health insurance.
Platform to find doctors and book medical appointments online.
Maisons Médicales (Out-of-Hours Clinics)
Medical assistance during evenings, weekends, and public holidays for non-emergency situations.
Find pharmacies open during nights, weekends, and holidays.
Official Hospital List in Luxembourg
Complete list of hospitals and healthcare establishments in Luxembourg.
Administrative information about healthcare rights, social security, maternity, disability, and more.
Bookmarking these websites can save you a lot of time — especially during your first year in Luxembourg.
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