Health Care Reimbursement: CNS, Bills, Direct Billing, and Supplemental Insurance

In Luxembourg, healthcare costs are covered in full or in part by the National Health Fund (CNS) or the relevant health insurance provider, provided you are enrolled in the Luxembourg social security system. For expatriates, newcomers, employees, self-employed individuals, or cross-border workers, understanding how reimbursements work helps avoid unpleasant surprises and allows you to better plan your healthcare budget.

This page explains how healthcare reimbursement works in Luxembourg: direct billing, upfront payments, invoices to submit, required documents, covered treatments, medications, healthcare abroad, cross-border workers, and supplemental health insurance.

How does healthcare reimbursement work in Luxembourg?

The Luxembourg systemis based on public coverage. Individuals enrolled in social security can receive reimbursement for their medical care, subject to the conditions set by the CNS or their health insurance fund.

The General Principle

Depending on the type of care, two scenarios may arise:

• you pay only the portion not covered, thanks to the third-party payment system;
• you pay the costs upfront and then request reimbursement from your health insurance provider.

Reimbursement depends on the type of care, the healthcare provider consulted, the applicable fee schedule, the official rate, and the insured person’s circumstances.

Mandatory Enrollment in Social Security

To be reimbursed for your healthcare costs, you must first be enrolled in the Luxembourg social security system. This enrollment is managed by the Joint Social Security Center(CCSS).

To understand the enrollment process, visit our page on health insurance, the CNS, the CCSS, and social security in Luxembourg.

CNS, CMFEP, and Other Relevant Insurance Funds

The National Health Fund(CNS) is the primary point of contact for private-sector employees regarding healthcare reimbursements. Other funds may be involved depending on your employment status, particularly for certain public-sector employees.

In all cases, reimbursements are made based on valid supporting documents, official rates, and coverage rules defined by the relevant agencies.

How do you enroll in the CNS based on your situation?

Third-Party Payment: Do You Have to Pay Medical Expenses Upfront?

The third-party payment system allows you to avoid paying the full cost of healthcare upfront. The portion covered by the CNS or the relevant health insurance fund is paid directly to the provider. You then pay only the remaining amount you are responsible for.

How does direct billing work?

In practice, when receiving eligible care or making an eligible purchase:

• you present your social security card;
• the reimbursable portion is paid directly;
• you pay only the non-reimbursed portion, if any.

Direct billing is common at pharmacies for prescription medications, in certain cases of hospitalization, or for certain medical procedures. It does not always apply during doctor’s visits, where you may still need to pay upfront.

What should you do if direct billing isn’t available?

If you have to pay upfront, you can request reimbursement by submitting the receipts to your health insurance provider. The reimbursement will then be issued via bank transfer, depending on processing times.

How do you get reimbursed for medical expenses you’ve paid?

When you have paid for a doctor’s visit, a medical procedure, or a reimbursable treatment, you must submit a reimbursement request to your health insurance provider.

Documents to Provide

To ensure your request is processed correctly, you will generally need to provide:

• the original paid invoice or bill of fees;
• proof of payment if the payment is not clearly indicated;
• your 13-digit Luxembourg social security number;
• your bank account information if it has not yet been registered;
• the doctor’s prescription when required for the procedure or treatment.

Where should you send your reimbursement request?

Reimbursement requests can be sent to the CNS or the appropriate health insurance fund, depending on your status. Certain procedures and information can also be accessed through the insured member’s portal on MyGuichet.lu.

Reimbursement Processing Times

Reimbursement processing times vary depending on the type of invoice, the complexity of the case, and whether a manual review is required. Simple invoices may be reimbursed more quickly, while some cases may take several weeks.

What types of care are reimbursed by the CNS?

The CNS and the relevant health insurance funds cover a wide range of medical treatments, within the limits of official rates and the applicable conditions.

Medical Consultations

Visits to general practitioners and specialists are reimbursed according to the applicable rates. Patients are generally free to choose their own healthcare provider.

Hospitalization and Surgical Procedures

Costs associated with hospitalization, surgery, or outpatient care may be covered, depending on CNS conditions and the medical situation.

Prescribed Tests, Exams, and Treatments

Medical tests, additional examinations, nursing care, physical therapy, or rehabilitation may be reimbursed if they meet the specified conditions, particularly when a doctor’s prescription is required.

Prescription Medications

Prescribed medications listed on the reimbursement lists may be covered depending on their classification. At the pharmacy, direct billing is often applied: in such cases, you pay only the non-reimbursed portion.

Dental, Vision, and Hearing Care

Dental care, eyeglasses, contact lenses, and hearing aids may be partially reimbursed. These expenses often result in a significant out-of-pocket cost, particularly for dentures, orthodontic treatment, or certain optical devices.

Vaccinations and Preventive Care

Certain preventive care procedures, screenings, and vaccinations may be covered depending on current programs and recommendations.

Type of Care	CNS Reimbursement	Important Note
General Practitioner Visit	Yes, according to official rates	Submit paid invoice if third-party payment is not available
Specialist	Yes, according to the fee schedule	Wait times and fees vary by practitioner
Pharmacy	Yes, for reimbursable medications	Direct billing is often available
Hospitalization	Yes, subject to certain conditions	You may be responsible for certain out-of-pocket costs
Dental	Partial coverage, depending on the treatment	Supplemental coverage is often helpful
Vision	Partial coverage depending on the case	Check coverage limits and conditions

Treatments not reimbursed or only partially covered

Not all medical care is reimbursed in the same way. Certain procedures may be partially covered, subject to conditions, or remain the patient’s responsibility.

Treatments Often Partially Reimbursed

• complex dental care;
• dental prosthetics;
• orthodontics;
• eyeglasses and contact lenses;
• hearing aids;
• certain comfort-related expenses in the hospital.

Alternative Medical Treatments

Certain practices known as non-conventional or complementary may not be reimbursed by the CNS, or may be reimbursed only under very specific circumstances. Depending on the situation, this applies to osteopathy, naturopathy, certain alternative consultations, or certain wellness approaches.

For these treatments, supplemental health insurance may sometimes cover part of the costs, depending on the policy you have.

Track your reimbursements online

Insured individuals can track their reimbursements through their personal account on MyGuichet.lu. This account allows you to view statements, verify certain information, and access documents sent by the CNS.

What You Can View

• your reimbursement details;
• your reimbursement statements;
• processing dates;
• certain certificates;
• your registered bank account information.

Activate eDelivery

eDelivery allows you to receive certain documents digitally in a secure space. This solution makes archiving easier, reduces paper mail, and makes it easier to find your statements.

Medical Care Abroad: What Are the Reimbursement Rules?

Reimbursement rules vary depending on whether the care is emergency or scheduled, the country in question, and whether or not there is a treaty with Luxembourg.

Emergency Medical Care in the European Union, the EEA, or Switzerland

During a temporary stay in the European Union, the European Economic Area, or Switzerland, the European Health Insurance Card can facilitate coverage for medically necessary care.

If you have to pay upfront, keep the detailed, paid invoices. Reimbursement may depend on the rules of the country you’re visiting or the procedures applicable in Luxembourg.

Healthcare Outside Europe

Outside Europe, the European Health Insurance Card is not valid. It is therefore recommended that you verify your coverage before departure and, if necessary, purchase travel insurance.

If you receive medical care abroad, always request detailed, paid invoices that are, if possible, written in a common language such as French, German, or English.

Scheduled Medical Treatment Abroad

Scheduled medical care abroad may require prior authorization from the CNS. Before taking any steps, contact your health insurance provider to find out the conditions for coverage.

Special Case for Cross-Border Workers

Cross-border workers enrolled in the Luxembourg health insurance system can receive medical care in Luxembourg or in their country of residence, depending on the applicable rules. Reimbursement procedures depend on the location of treatment, the responsible health insurance fund, and the steps taken in the country of residence.

To understand your situation, visit our page dedicated to healthcare for cross-border workers in Luxembourg.

Should You Get Supplemental Health Insurance?

Supplemental health insurance is not mandatory in Luxembourg. However, it can be useful to supplement CNS reimbursements and reduce out-of-pocket costs.

When is supplemental health insurance useful?

It can be particularly helpful if you have:

• regular vision care needs;
• foreseeable dental or orthodontic care;
• children;
• healthcare needs abroad;
• specific expectations regarding hospitalization;
• care that is not reimbursed or only partially reimbursed by the CNS.

Factors to Compare Before Signing Up

Before choosing supplemental insurance, compare the coverage, coverage limits, exclusions, waiting periods, any medical questionnaires, and the reimbursement levels offered.

Summary of the Healthcare Reimbursement Process

Healthcare reimbursement in Luxembourg is based on a structured system. Once you’re enrolled in Social Security, you can receive coverage from the CNS or your relevant health insurance fund. The third-party payment system sometimes allows you to avoid paying upfront, but certain consultations or services must still be paid for before reimbursement.

To minimize your out-of-pocket costs, keep your receipts in a safe place, track your reimbursements online, and consider whether supplemental health insurance is right for you—especially for vision, dental, hospitalization, or medical care abroad.

FAQ on Healthcare Reimbursement in Luxembourg

Who reimburses healthcare costs in Luxembourg?

Healthcare costs are reimbursed by the CNS or the appropriate health insurance fund, depending on your status. For private-sector employees, the CNS is the primary point of contact.

Do I have to pay upfront for doctor’s visits?

In some cases, yes. Direct billing does not always apply for doctor’s visits. If you pay upfront, you must send the paid invoice to your health insurance provider for reimbursement.

What documents should you send to the CNS for reimbursement?

You generally need to send the paid invoice or fee statement, proof of payment if necessary, your registration number, and, in some cases, the doctor’s prescription.

How long does it take to receive a reimbursement?

The processing time varies depending on the type of invoice and the complexity of the case. Some simple invoices may be reimbursed quickly, while other claims may take several weeks.

Are medications reimbursed in Luxembourg?

Yes, prescribed and reimbursable medications may be covered depending on their classification. At the pharmacy, direct billing is often used.

Is dental care well reimbursed?

Certain dental treatments are reimbursed, but coverage may be partial. Dentures, complex treatments, or orthodontic care may result in a significant out-of-pocket cost.

Are eyeglasses covered?

Optical expenses may be partially covered depending on the applicable conditions. Supplemental health insurance may be helpful if you have significant optical needs.

How can I track my CNS reimbursements?

You can track your reimbursements through the CNS member portal on MyGuichet.lu, view your statements, and opt in to receive certain documents digitally.

Is medical care received abroad reimbursed?

Medical care received abroad may be reimbursed depending on the country, the type of care, and the applicable conditions. Emergency care in Europe can be facilitated by the European Health Insurance Card.

Is scheduled medical care abroad reimbursed?

It may be reimbursed under certain conditions. Some scheduled medical care abroad requires prior authorization from the CNS. It is essential to check with the CNS before making an appointment.

Are cross-border workers reimbursed in the same way?

Cross-border workers enrolled in the Luxembourg system can receive medical care in Luxembourg or in their country of residence. Reimbursement terms depend on where the care is provided and the procedures followed.

Is supplemental health insurance mandatory?

No. It is not mandatory, but it can supplement CNS reimbursements and reduce out-of-pocket costs, particularly for vision care, dental care, or hospitalization.

To better understand the healthcare system in Luxembourg

• Healthcare System in Luxembourg
• Health Insurance, CNS, and Social Security
• Seeing a Doctor
• Mental Health and Psychological Care
• Specialists and Paramedical Care
• Hospitals, Maternity Wards, and Clinics
• Pharmacies and on-call pharmacies
• Home care and medical tests
• Healthcare for Cross-Border Workers
• Insurance in Luxembourg
• Travel insurance