Digitalisation

The requirement to submit invoices digitally will come into force three months after the publication of the reference document.

A transitional period is currently in place to allow editors and practices to prepare. We invite you to contact your editor to check what adjustments are needed to ensure implementation within the deadline.

For invoices relating to the ‘Reimbursement’ and ‘Immediate Direct Payment (PID)’ schemes, the date on which this requirement comes into force is set for 1 October 2026.

Only invoices issued under the ‘Reimbursement’ and ‘Immediate Direct Payment (PID)’ schemes are subject to the requirement for digital transmission.

Invoices for fees under the ‘Third-party payment’ and ‘Social third-party payer’ schemes are not currently affected and will continue to be transmitted in accordance with current procedures until further notice.

No.

The requirement relates to the digital transmission of the invoice. This requirement can be met either via Immediate Direct Payment (PID) or via digital reimbursement.

PID is therefore one option amongst the available methods of digital transmission.

Invoices covered by the third-party payment scheme should continue to be transmitted to the CNS in accordance with the specific procedure currently in place, namely grouped together and sent by post with a separate monthly summary.

As part of the ongoing digitisation of communications, the CNS is currently prioritising the roll-out of digital reimbursement and the PID. In the medium term, the aim is to favour, as far as possible, harmonised solutions based on the mechanisms already in place under the PID, in order to avoid the development of parallel procedures.

Healthcare professionals will be informed in due course of any developments concerning the third-party payment scheme.

Invoices covered by the social third-party direct payer scheme will continue to be transmitted according to the current procedure.

Professionals who are exempt from the digitisation requirement may continue to draw up their invoices on paper.

They may also choose, on a voluntary basis, to transmit their invoices digitally using the alternative procedure authorised by the CNS, without this choice affecting their exemption status. For more information, see the FAQ ‘I don’t have any practice software. How can I transmit my invoices digitally?’

Whichever method is chosen, invoices must be drawn up in accordance with the applicable provisions. See the FAQ ‘How do I complete the invoice correctly?’ for the rules on content and presentation.

The alternative procedure makes it easier to draw up an invoice in the required format and makes it available to the patient via the CNS app and in their personal MyGuichet.lu space.

The CNS also offers solutions via the secure MySecu.lu services for professionals who do not have compatible software.

For more information, please visit our page “CNS eConnector – solution without practice software”.

The invoice must be drawn up in accordance with the provisions of the agreement between the AMMD and the CNS, as well as the rules set out in the nomenclature.

See our interactive guide on completing an invoice under the Digital Reimbursement and Immediate Direct Payment schemes for further details.

Yes.

The reference documents relating to the digital transmission of invoices for the Reimbursement and PID schemes are available on the CNS website.

Digitisation is gradually being extended to cover several types of document.

Electronic certificates of illness (eCITs), for example, are planned for a later phase.

Until a mandatory digital procedure comes into force for a given document, the current procedures remain in force.

The PID offers several advantages for healthcare professionals:

• Instant confirmation of the amount covered by health insurance;
• Immediate validation of invoiced services;
• Simplified administrative procedures thanks to the digital transmission of invoices.

The PID offers several advantages for patients:

• No upfront payment is required for the portion covered by health insurance, as this is paid directly to the healthcare professional;
• Reduced administrative procedures, as no claim for reimbursement needs to be submitted to the CNS;
• No waiting period for reimbursement, as the cost is covered directly at the time of invoicing;
• A simplified administrative process, with fewer documents to manage and submit.

For children and young people under the age of 18 who are entitled to 100 per cent cover, no payment is due for services covered by mandatory health insurance.