CNS – D’Gesondheetskeess health fund

The Caisse Nationale de Santé is the Luxembourgish health organisation in charge of insuring private sector employees in Luxembourg (and their beneficiaries) regarding health: prevention, reimbursement of healthcare expenses, health insurance in the context of illness, accident, maternity, dependence or end of life.

CNS registration

Any private sector employee must be registered with the CNS. As soon as you hired, your employer makes the registration with the CCSS, Centre Commun de la Sécurité Sociale, in charge of coordinating all health organisations in Luxembourg.

For cross-border workers, the competent country for health insurance is Luxembourg. A form (S1, for French and German cross-border workers – BL1, for Belgian cross-border workers) will be sent to the country of residence so that medical will be reimbursed.

Your employer declares each month your gross salary. Social contributions will be deducted at source.

Compensation for incapacity for work : where to send sick leave

During sick leave, whether you are a resident or cross-border worker, send the original copy (part 1) of incapacity for work prescribed by the doctor to the following address, within 3 days:

Caisse nationale de santé – Service Contrôle et gestion des certificats d’incapacité de travail L-2979 Luxembourg.

The other part will be sent to the employer within the same period of 3 days.

Your employer declares every month incapacities for work for employees and the numbers of absence in order to calculate potential benefits which will be paid to you, based on these incapacities of work.

For maternity and parental leave, click here.

Covering of medical expenses : where to send CNS reimbursement claims

CNS is also in charge of the reimbursement of medicines and medical expenses, under some conditions.

Reimbursement requests have to be sent to the following address, in an envelop without stamp. However, sending a registered letter remains at your expense.

Caisse Nationale de Santé – Service Virements, 125 Route d’Esch L-1471 Luxembourg. 

La simple copie du virement bancaire effectué ne suffit pas. Celui-ci doit être dûment effectué – preuve bancaire à l’appui. Lors de la première demande de remboursement, il convient de joindre un RIB – relevé d’identité bancaire du compte sur lequel sera effectué le virement de la CNS

Applications must be complete, that is to say with medical expenses, duly paid to the doctor or health professional. Without proof of payment, your application will be returned to you. The simple copy of the bank transfer is not a proof of payment. For a first application, submit your bank details, the CNS will transfer the money on this account.

See reimbursement of medical expenses.

Reception counter: Mon-Fri, 8 am-4 pm

More information on health insurance in Luxembourg

Categorie(s):   Health Fund
  • 125, rte d’Esch
    1471 Luxembourg-Hollerich

  • +352 27 57-1