
In occupational medicine as in general practice, the terms “monitoring” and “surveillance” are often used interchangeably. However, the French regulatory framework distinguishes them precisely, and this distinction has direct consequences on the frequency of visits, the type of professionals involved, and the rights of the patient or employee.
Medical telemonitoring and clinical follow-up: what French law has separated since 2023
Decree No. 2023-471 of June 21, 2023, has integrated medical telemonitoring into common law, with sustainable funding from Health Insurance (Article L. 162-48 of the Social Security Code). This text establishes a clear dividing line.
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Surveillance, in the sense of this decree, refers to an automated collection of physiological data (blood glucose, oxygen saturation, weight, blood pressure), accompanied by alerts and remote therapeutic adjustments. It targets a specific parameter or identified risk within a defined scope.
Follow-up, on the other hand, encompasses the entire journey: in-person or video consultations, therapeutic education, coordination among professionals, and consideration of mental health. To delve deeper into medical surveillance with Santé Boost, this distinction between targeted scope and overall support serves as the starting point.
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The pathologies covered by reimbursed telemonitoring include heart failure, diabetes, kidney failure, and chronic respiratory diseases. In each of these cases, surveillance does not replace follow-up; it fits into it as one tool among others.

Individual health follow-up at work: three levels, three risk logics
The Labor Code organizes the health monitoring of employees into three categories. Each reflects a different level of professional risk and involves distinct participants.
- The simple individual follow-up (SIS) concerns employees without specific risks. An information and prevention visit, conducted by an occupational health nurse or doctor, takes place upon hiring and then according to a frequency set by the occupational physician.
- The adapted individual follow-up (SIA) applies to night workers, young people under 18, or employees exposed to certain biological agents. The frequency and content of visits are adjusted to the worker’s profile.
- The reinforced individual follow-up (SIR) targets positions with particular risks (exposure to asbestos, lead, carcinogenic agents, work in hyperbaric environments, for example). A medical fitness examination, conducted exclusively by the occupational physician, is mandatory before assignment to the position.
The fundamental difference between these three levels lies not only in the frequency of visits. It concerns the very nature of the act: an information and prevention visit does not have the same legal significance as a fitness examination. The former informs and guides, while the latter conditions access to the position.
Often overlooked special cases
Temporary workers, seasonal employees, and workers with multiple employers pose coordination challenges. A temporary employee exposed to a risk covered by the SIR with a user employer must receive the fitness examination before starting the job, even if the duration of the assignment is short. Field reports vary on how this obligation is respected in practice.
HAS recommendations after cancer: less standardized surveillance, more global follow-up
The High Authority of Health published several recommendations in 2023-2024 that clearly illustrate the ongoing shift. For certain low-risk breast cancers, the frequency of standardized surveillance examinations (imaging, biological markers) has been reduced.
At the same time, the HAS emphasizes a strengthened global follow-up after cancer, integrating mental health, return to professional activity, and quality of life. This repositioning reflects a finding: multiplying surveillance examinations does not automatically improve prognosis, while structured support for the patient over time has a measurable impact on the experience of the disease.
This evolution parallels that observed in occupational health. The post-exposure visit, established for employees who have been exposed to particular risks, is not limited to verifying the absence of pathology. It opens the right to extended medical follow-up, including after the cessation of professional activity.

Where the boundary between follow-up and surveillance becomes blurred
The available data do not always allow for a clear line to be drawn between the two approaches. A diabetic patient under telemonitoring has their blood glucose levels automatically analyzed (surveillance), but the doctor who interprets the alerts and adjusts the treatment is performing clinical follow-up. The two actions overlap.
In occupational health, the same ambiguity exists. An occupational physician conducting a fitness visit (a regulatory surveillance act) often takes the opportunity to address broader prevention topics (a follow-up act). Daily practice mixes what the law separates.
This gray area has concrete consequences for the responsibility of professionals, for patients’ rights to information, and for the financing of acts. The 2023 decree on telemonitoring clarified part of the issue by creating specific act codes, but the question remains open for many clinical situations.
The distinction between follow-up and surveillance is not a theoretical debate. It determines who intervenes, at what pace, with what tools, and who finances what. For an employee exposed to a professional risk as well as for a patient with a chronic condition, knowing the framework of their care allows them to assert their rights and understand what each medical appointment is supposed to provide.