Article R1111-8-2 of the French Public Health Code
The national health identifier is used to reference the health data and administrative data of any person receiving or due to receive a diagnostic, therapeutic, preventive, pain-relieving, disability-compensating or loss-of-autonomy procedure, or interventions necessary for the coordination of several of these procedures. The national health identifier may not be used for any purpose other than those mentioned in the first paragraph, unless the health identifier is processed for health research…