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Beware of false incapacity certificates!

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The CNS warns against ordering certificates of incapacity for work from online platforms, without consultation or examination by a doctor. The CNS refuses all certificates acquired online without personal contact with the doctor or issued by unknown doctors. No benefits...

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All I need to know about the CNS

What is the CNS and what is its role in the Luxembourg healthcare system?

The CNS manages two branches of social security in Luxembourg: sickness and maternity insurance (assurance maladie-maternité-AMM) and long-term care insurance (assurance dépendance-AD).

The CNS is responsible for all insured persons in the private sector (employees and the self-employed) as well as government workers.

The CNS has a variety of missions:

  • The CNS covers health care and preventive medicine, as well as assistance and care required by a dependent person at home or in an institution.
  • It also pays financial benefits for sickness and maternity.
  • The CNS monitors the conformity and quality of the services provided and actively informs insured persons, care providers and employers.
  • It also contributes to the management and organisation of the Luxembourg health system by working with the various actors in the health sector and by participating in the definition and implementation of the country's public health policies.

The specific tasks of the CNS are defined in the Social Security Code.

What are the CNS's values and commitments to its insured?

The CNS has adopted values that guide it in the fulfilment of its missions.

  • Responsibility: We demonstrate professionalism.
  • Commitment: We take an interest in our work and are actively involved on a daily basis.
  • Communication: We conduct a transparent and constructive dialogue with the aim of sharing established and correct knowledge and information.
  • Quality: We deliver quality services that meet the needs and expectations of our insured and our internal and external partners. We are constantly developing our expertise.
  • Service: We provide fast and effective solutions that are tailored to the needs and expectations of our insured and our internal and external partners.

How can I register with the CNS as an insured person?

If I work in Luxembourg, either for an employer or as a self-employed person, I must be affiliated to the Social Security Centre (Centre commun de la sécurité sociale-CCSS).
This affiliation protects me against various social security risks, such as illness, maternity, work accidents, occupational diseases, old age, invalidity and dependency.

Find out more on the AFFILIATION page

How can I contact the CNS if I need help or have questions?
  • I can contact the CNS by telephone on (+352) 2757 - 1.
  • I can contact the CNS by email using the online form.
  • I can visit a CNS agency.
  • I can send a letter to Caisse nationale de santé, L-2980 Luxembourg.

Where can I get more information about the CNS and how it works?

Each year, the CNS publishes its Annual Report.
This report provides an overview of how the CNS operates, its activities during the year in question and the highlights of the past year.

I would like to consult the CNS 2023 Annual Report

Who is doing what?

We've all been in this situation, when we're sent from one administration to another without knowing where to look or who to contact...

It's easy to find out who is responsible for what in Luxembourg's social security system thanks to the CNS's dedicated page. Find out about the various services offered by the health and social security actors in Luxembourg in just one click.

More information

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