Step-by-step guide to implementing the INS

Here are the steps to take, the players to contact, and the documentation to read so that your INS project can succeed.

What would you like to do?

Before starting the work, check whether the INS is relevant to you

Identify the nature of your software and get your INS step-by-step guide

About the INS

The INS, or French National eHealth ID, is an individual’s unique and permanent identity. Since 1 January 2021, all health data must be listed with the INS.


To limit errors in the identification of persons who are being cared for, monitored or aided.

For a trusted identity that facilitates the exchange and sharing of health data.

To help improve the quality and safety of care.

To accelerate the deployment of digital exchange and sharing services in the health sector.

Comprendre l'INS en 3 minutes

How does it work?

What is the INS? How does it work? What should I do?

What is the INS?

The INS (National eHealth ID) is an identity unique to each person, which comes from the national reference databases.

How do you retrieve one?

The INS is retrieved, or verified, via the INSi teleservice implemented by the Cnam. Once validated in accordance with the identity security best practices in force, the INS can be used.

What should I do?

You're developing a feature that calls the INSi teleservice and upgrading your software to better implement the INS.

Questions you may have

What does it do for me?

Your customers, as actors in the health and social care sphere, are required to list the health data they process with the INS. Upgrading your products allows you to offer your customers a solution that complies with regulations.

What happens if I don't?

Failure to comply with this obligation will have several impacts:

  • Your customers will not incorporate the INS into their software, which will entail possible penalties with regard to several systems (Ségur wave 1, HOPEN, portal listing in Mon Espace Santé, etc.).
  • Your customers will not be in compliance with the regulations. They will therefore be responsible for any errors in the identification of their patients and users.
  • The exchange and sharing of health data by your customers will be less smooth.
  • The identity used by your customers will not be the main one, drawn from Civil Registration databases.

When should I do it?

If you are subject to the implementation of the INS, you must offer an INS-compatible solution to your customers as soon as possible to enable them to comply with the obligation, which has been in effect since 1 January 2021, to list all health data with the INS.

What is the benefit of the INS to my customers?

The INS makes it possible to limit errors in the identification of the persons who are being cared for, monitored or aided, and facilitates the exchange and sharing of health data.