Applying for the reopening of a file for medical treatment of an accident or an occupational disease that occurred on or after 1 January 2011

Last update

For all cases recognised by the Accident Insurance Association (Association d'assurance accident - AAA), the coverage of benefits in kind is limited.

It can be automatically limited without the need for an opinion from the Social Security Medical Board (Contrôle médical de la sécurité sociale) or a decision to intervene on their part:

  • 3 months after the occurrence of an accident which did not cause total work incapacity exceeding 8 consecutive days;
  • 12 months after the occurrence of an accident resulting in a greater total work incapacity, unless the Social Security Medical Board issues an opinion to the contrary.

The Social Security Medical Board decides to close the file if it finds that the consequences of the accident or occupational disease no longer justify benefits provided by the accident insurance.

In order to claim new benefits in connection with the accident, the insured must request the reopening of the file and obtain a favourable opinion from the Social Security Medical Board.

Who is concerned?

Any insured whose coverage of benefits has been limited either automatically or by presidential decision in a specific file may request a reopening of the file.


Preliminary steps

The work, commuting or school accident, or the occupational disease must have been declared beforehand.


Unless the medical situation has changed, the application is not receivable before the expiry of one year from the notification of the decision limiting the reimbursement on a certain date, or from the rejection of a previous application for reopening.

The insured person must wait one year before being able to request the reopening of his file, except if their medical situation has changed.

The period of one year begins on the day after the notification of the decision:

  • limiting support from a certain date; or
  • dismissing a previous application for reopening.

How to proceed

Submitting the application

The person concerned must complete the application form for reopening an accident file for medical treatment (French, Pdf, 764 Kb). The duly completed and signed application must then be returned to the AAA.

Declarants are invited to consult our tutorial regarding the use of PDF forms.

The insured must indicate the reason(s) for their request on the form.

Example: The insured must indicate whether they still need physiotherapy sessions, or if surgery is planned.

The medical officer of the Social Security Medical Board assesses the reason(s) for the reopening request:

  • the doctor decides directly on the basis of the documents in his possession; or
  • the doctor asks the insured to provide him with other medical reports needed to process the file.

If the file is reopened, the medical officer may grant the reopening of the file for an indefinite period. In this case, the insured is informed of the reopening of the file by letter.

If the medical officer either refuses or grants the reopening with a new time limit the insured is always informed by presidential decision of the outcome of his request.


Interested parties have several means of appeal at their disposal to assert their rights.

Online services and forms

Who to contact

Accident Insurance Association

  • Accident Insurance Association

    4, rue Mercier L-2144 Luxembourg Luxembourg
    L-2976 Luxembourg

    Desk opening hours (with or without booking an appointment via

    Closed ⋅ Opens at 8.00
    8.00 to 12.00
    8.00 to 12.00
    8.00 to 12.00
    8.00 to 12.00
    8.00 to 12.00
  • Benefits department

    (+352) 49 53 35

Related procedures and links


Reporting an accident at work / a commuting accident Reporting a school / extracurricular accident Declaring an occupational disease Means of appeal


Legal references

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