Health Insurance: CNS, Social Security, Enrollment, and Health Coverage

In Luxembourg, health insurance is mandatory for people who work or reside in the country and are covered by the Luxembourg social security system. It provides access to health care, reimbursement from the National Health Fund (CNS), and coverage for family members under certain conditions.

For expatriates, newcomers, employees, self-employed individuals, or cross-border workers, it is important to fully understand the roles of the CCSS, the CNS, the social security card, co-insurance for family members, and the potential benefits of supplemental health insurance.

How does health insurance work in Luxembourg?

The Luxembourg system is based on mandatory health insurance, funded by social security contributions and administered by several public institutions. The goalis to guarantee access to healthcare for insured individuals and their dependents, in accordance with the conditions set forth by the Luxembourg social security system.

Mandatory Health Insurance

Anyone who is employed in Luxembourg must be enrolled in the social security system. For employees, the employer handles enrollment with the Common Social Security Center(CCSS). For self-employed individuals, the person must complete the enrollment process directly.

This enrollment entitles individuals to health and maternity insurance, pension insurance, accident insurance, and long-term care insurance.

Who is covered by Luxembourg’s health insurance?

The following individuals, among others, may be covered by the Luxembourg system:

• employees working in Luxembourg;
• self-employed individuals registered in Luxembourg;
• cross-border workers employed in Luxembourg;
• civil servants and public employees covered by specific plans;
• co-insured family members, subject to certain conditions;
• certain individuals residing in Luxembourg, depending on their administrative and social status.

Cross-border workers must follow specific procedures to arrange their health coverage between Luxembourg and their country of residence.

What does mandatory health insurance cover?

Luxembourg health insurance covers a wide range of medical care and services, subject to the applicable conditions and reimbursement rates.

• visits to a general practitioner or specialist;
• hospitalization, outpatient care, and surgical procedures;
• prescription medications;
• vaccinations and preventive care;
• maternity care;
• medical tests and diagnostic examinations;
• dental, vision, or hearing care, with varying levels of coverage;
• rehabilitation, physical therapy, and certain types of home care.

Type of Care	Coverage under mandatory health insurance	Is supplemental health insurance useful?
General practitioner	Yes, depending on the applicable rates	Not always necessary
Specialist	Yes, depending on the fee schedule	As needed
Hospitalization	Yes, depending on coverage conditions	Useful for certain comfort services
Prescription medications	Yes, depending on the type of medication	Depending on the treatment
Dental	Partially covered, depending on the treatment	Often useful
Vision	Partial, depending on the case	Often helpful

The CCSS: Your Gateway to Luxembourg’s Social Security System

The Joint Social Security Center, or CCSS, is the public agency responsible for enrolling individuals in the social security system. It collects contributions and manages enrollment data for the various branches of social security.

What is the role of the CCSS?

The CCSS is responsible, in particular, for:

• enrollment in health and maternity insurance;
• pension insurance;
• accident insurance;
• long-term care insurance;
• the collection of social security contributions;
• the management of certain certificates and enrollment documents.

The CCSS does not directly reimburse healthcare costs. This responsibility falls to the CNS or the relevant fund, depending on the insured person’s status.

How do I enroll in Social Security?

The process depends on your situation:

• Employee: The employer registers you with the CCSS;
• Self-employed: You must register directly with the CCSS;
• cross-border worker: Enrollment is linked to the work performed in Luxembourg, with additional formalities required in the country of residence;
• Family member: Coverage may be provided through co-insurance, subject to certain conditions.

Certificate of Enrollment in the Luxembourg Social Security System

The enrollment certificate serves as proof of your enrollment in the Luxembourg social security system. It may be required for certain administrative, professional, banking, or educational procedures.

This certificate can be obtained via MyGuichet.lu, often as an immediate PDF download from the insured person’s private account.

13-Digit Social Security Number

After enrollment, the insured person is assigned a 13-digit national registration number. This number is a personal identifier used in dealings with government agencies, social institutions, certain educational institutions, healthcare providers, or whencarrying out procedures such as opening a bank account in Luxembourg.

The CNS: Your Healthcare Provider in Luxembourg for the Private Sector

The National Health Fund (Caisse nationale de santé, or CNS) is the primary point of contact for insured individuals regarding healthcare reimbursements, health benefits, sick leave, and certain procedures related to illness or maternity.

What is the CNS’s role?

The CNS is responsible, in particular, for:

• reimbursing medical consultations;
• reimbursing maternity-related care;
• reimbursing certain medications;
• covering the costs of medical care, tests, and examinations;
• maternity-related benefits;
• sick leave;
• co-insurance certificates;
• tracking of certain administrative data regarding the insured person.

Reimbursement for Healthcare

In many cases, the patient pays for the consultation or service and then submits the receipts to the CNS to obtain reimbursement. Reimbursement rates vary depending on the type of care, the classification code, the patient’s age, and the applicable conditions.

For information on the practical steps involved, see our guide on healthcare reimbursement in Luxembourg.

Sick Leave in Luxembourg

If an employee is unable to work, they must comply with the required obligations toward their employer and the CNS. The certificate of incapacity for work must be submitted within the required time frame.

Find practical information on our page about sick leave and medical leave in Luxembourg.

CNS Insured Persons’ Portal on MyGuichet.lu

The CNS Insured Person Portal on MyGuichet.lu simplifies many procedures. From this secure portal, you can, among other things:

• view your reimbursement details;
• check or update your bank account information;
• view certain personal information;
• request certain certificates;
• track the number of days of family leave remaining;
• activate eDelivery to receive certain documents digitally.

For newcomers, activating MyGuichet.lu greatly simplifies interactions with Luxembourg’s government agencies and public organizations.

Social Security Card and European Health Insurance Card

After enrolling in the Luxembourg social security system, you will receive a personal social security card. This card serves as your identification when dealing with social security institutions and healthcare providers.

Personal Social Security Card

The social security card is strictly personal and issued in your name. It includes your last name, first name, and 13-digit registration number.

You may be asked to present it during medical appointments, at the pharmacy, at the hospital, or when dealing with social security institutions.

Validity of the Social Security Card

The Luxembourg social security card is valid for the duration of your enrollment. In the event of loss, a change in circumstances, or expiration of the European section, a new card can be ordered from the CCSS.

European Health Insurance Card

The card includes a European section, known as the European Health Insurance Card(EHIC). It can be useful during temporary stays in a country of the European Union, the European Economic Area, or Switzerland, depending on the applicable rules.

It provides access to medically necessary care during a temporary stay, subject to the conditions of the country visited. It does not replace travel insurance and does not necessarily cover all expenses.

Travel Outside Europe and Health Insurance

The European Health Insurance Card does not cover healthcare costs when traveling outside Europe. If you are traveling outside the European Union or the European Economic Area, it is recommended that you verify your coverage and, if necessary, purchase travel insurance.

Health Insurance for Spouses, Children, and Dependents

When a primary insured person is enrolled in the Luxembourg social security system, certain family members may be covered as co-insured individuals, subject to certain conditions.

Co-insurance for Spouses or Partners

A spouse or partner who does not have their own coverage may, in certain situations, be covered as a co-insured person with the primary insured. It is important to submit the necessary supporting documents and to verify the situation with the CNS or the CCSS.

Co-insurance for Children

Children may also be covered as co-insured family members if the conditions are met. For expatriate families, this verification must be completed shortly after moving to Luxembourg.

Special Cases

Certain situations may require a more detailed review: blended families, a spouse working in another country, a child who is a student, a cross-border worker, a change in employment status, separation, or departure from Luxembourg.

If in doubt, it is best to contact the CNS or CCSS directly or consult the official information on Guichet.lu.

Supplementary Health Insurance: Is It Worth It in Luxembourg?

Mandatory health insurance covers a significant portion of healthcare costs, but it does not always reimburse the full amount of expenses. Certain treatments may result in out-of-pocket costs, particularly for dental care, vision care, orthodontics, hospitalization, or specific services.

What the CNS does not always fully reimburse

Supplemental health insurance may be a good option to better cover:

• expensive dental care;
• dental prosthetics;
• orthodontics;
• eyeglasses, contact lenses, or optical expenses;
• certain hearing aids;
• a private hospital room;
• certain treatments that are not reimbursed or are reimbursed only partially;
• certain complementary medicine treatments, depending on the policy.

The Benefits of Supplemental Health Insurance in Luxembourg

Supplemental health insurance can help:

• reduce out-of-pocket costs after reimbursement by the CNS;
• improve coverage for certain routine medical treatments;
• provide additional coverage;
• provide greater protection for families with children;
• plan for foreseeable expenses, particularly for vision care or orthodontics.

Things to Consider Before Purchasing Supplemental Health Insurance

Before choosing supplemental health insurance, carefully compare:

• reimbursement limits;
• coverage exclusions;
• waiting periods;
• any medical questionnaires;
• dental, vision, and hospitalization coverage;
• coverage in Luxembourg and abroad;
• any coverage offered by your employer, if applicable.

Situation	Is supplemental health insurance useful?	Why?
Young single person with no special needs	Not always essential	Mandatory coverage may be sufficient for routine care.
Family with children	Often useful	Needs for medical visits, vision care, dental care, or orthodontics may be greater.
Planned orthodontic treatment	Yes	The costs can be high and may be partially reimbursed.
Significant optical needs	Yes	Glasses and contact lenses may result in out-of-pocket costs.
Frequent hospitalizations or desired comfort benefits	Yes	Certain hospital services may be covered more comprehensively.

To avoid unpleasant surprises, here are the main steps to take as soon as you arrive or start your new job in Luxembourg.

Avoid the following mistakes with your health insurance

Summary of Health Insurance in Luxembourg

Luxembourg’s health insurance system is based on a structured organization. The CCSS manages social security enrollment, while the CNS handles healthcare reimbursements, sick leave, and numerous health-related procedures.

For expats and newcomers, the key points are simple: verify your enrollment, receive your social security card, check coverage for family members, understand CNS reimbursements, and assess the benefits of supplemental health insurance.

FAQs on Health Insurance, the CNS, and Social Security in Luxembourg

Is health insurance mandatory in Luxembourg?

Yes. Health insurance is mandatory for individuals enrolled in the Luxembourg social security system, including employees, self-employed individuals, and cross-border workers employed in Luxembourg.

Who enrolls me in social security in Luxembourg?

If you are an employee, your employer will register you with the CCSS. If you are self-employed, you must complete the registration process yourself.

What is the role of the CCSS?

The CCSS manages social security enrollment, collects contributions, and issues certain administrative certificates. It serves as the entry point into the Luxembourg social security system.

What is the role of the CNS?

The CNS primarily manages healthcare reimbursements, health benefits, sick leave, and certain procedures related to illness, maternity, or co-insurance.

How do I get my social security card?

The social security card is mailed after enrollment. If the card is lost, has expired, or your circumstances have changed, you can request a new card from the CCSS.

How do I obtain a certificate of enrollment?

You can generate a certificate of enrollment through the MyGuichet.lu member portal. It serves as proof of your enrollment in the Luxembourg social security system.

How do I add my spouse to my health insurance?

A spouse or partner may be covered under your policy under certain conditions if they do not have their own coverage. Supporting documents may be requested to establish the family relationship or partnership.

Are my children covered by my health insurance?

Children may be covered as co-insured family members if the conditions are met. It is recommended that you verify their status shortly after moving to Luxembourg.

Are cross-border workers covered by the CNS?

Yes, cross-border workers registered in Luxembourg are covered by the Luxembourg system. However, they must complete specific procedures to be eligible for healthcare in their country of residence.

How can I track my CNS reimbursements?

You can track your reimbursements through the CNS Insured Member Portal on MyGuichet.lu. This portal also allows you to verify your bank account information and certain details in your file.

Is supplemental health insurance mandatory?

No, it is not mandatory. However, it can be useful to supplement CNS reimbursements, particularly for certain dental, vision, hospital, or orthodontic expenses.

Which types of care are often reimbursed at a lower rate?

Certain dental, vision, orthodontic, and hearing expenses, as well as comfort-related services in the hospital, may result in out-of-pocket costs. In such cases, supplemental health insurance can be beneficial.

Is the European Health Insurance Card sufficient for travel?

It’s useful for temporary stays in Europe, but it doesn’t replace travel insurance. It doesn’t cover healthcare costs outside of Europe or certain specific services.

To learn more about healthcare

• Healthcare System in Luxembourg
• Reimbursement for Healthcare
• Seeing a doctor in Luxembourg
• Mental Health and Psychological Care
• Specialists and paramedical care
• Hospitals, Maternity Wards, and Clinics
• Pharmacies and on-call pharmacies
• Healthcare for Cross-Border Workers
• Sick leave and medical leave
• Insurance in Luxembourg
• Travel insurance