The Caisse Nationale de Santé (National Health Fund) is the Luxembourg health organization in charge of the insured persons of the private service in Luxembourg (and their beneficiaries) for all matters concerning their health.
This concerns both prevention and the reimbursement of health expenses, as well as health insurance in the event of illness, accident, maternity, dependency or end of life.
NSC Registration
All private sector employees must be registered with the NSC.
This affiliation is done as soon as the employee is hired by his employer at the CCSS, Centre Commun de la Sécurité Sociale, which is in charge of coordinating the different health organizations in Luxembourg.
For frontier workers, the competent country for health insurance is Luxembourg. A form (S1, for French and German frontier workers – BL1, for Belgian frontier workers) will be sent to the country of residence to enable health care to be covered.
The employer declares every month the gross salary of his employee from which the social security contributions will be deducted at source.
Disability compensation: where to send work stoppages and illnesses
During a sick leave, the resident or frontier worker must send the original (part 1) of the sick leave prescribed by the doctor to the CNS. The sick leave must be sent within 3 days to the following address
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 maximum period of 3 days.
The employer shall declare each month the incapacity to work and the hours of absence so that any compensation for the employee related to this incapacity to work can be paid.
For the specific case of maternity and parental leave, click here.
Medical expenses: where to send NHA claims
The CNS is also responsible for reimbursing drugs and medical expenses incurred by the insured under certain conditions.
Requests for refunds should be sent to the following address in an unstamped envelope. The costs of a “Registered” shipment remain at your charge.
CNS Caisse nationale de santé – Service Virements, 125 Route d’Esch L-1471 Luxembourg
The claims must be complete, i.e. they must include all bills for fees and other medical expenses paid, duly paid by the doctor or health professional. If not, the applications will be returned to you. The simple copy of the bank transfer made is not enough. This must be duly carried out – with bank proof. When making the first request for reimbursement, a bank account number (RIB) must be attached to the account to which the NHA transfer will be made.
See Medical Expenses.
Reception desk: Monday to Friday, 8am to 4pm
