Background
Mme L., an employee, declared a reactive anxio-depressive syndrome as an occupational disease in January 2020. The agricultural social security fund (Caisse MSA Portes de Bretagne) refused coverage in June 2020 on two grounds: the syndrome was not listed in any official occupational disease table (tableau de maladies professionnelles), and her estimated permanent disability rate fell below the 25% threshold set by decree. Under Article L. 461-1 of the Social Security Code, that threshold is a prerequisite for referring an off-table disease to a Regional Committee for the Recognition of Occupational Diseases (CRRMP — Comité Régional de Reconnaissance des Maladies Professionnelles), the body empowered to determine whether an unlisted illness was “essentially and directly caused by the claimant’s usual work.”
Mme L. contested the refusal before the social security courts. The Rennes Court of Appeal (9th Social Security Chamber) ruled against her on September 17, 2025. She then filed a cassation appeal and, by a separate memorandum received at the Court registry on March 17, 2026, raised four priority constitutional questions (questions prioritaires de constitutionnalité, QPCs) targeting the seventh paragraph of Article L. 461-1, as amended by Law No. 2017-1836 of December 30, 2017. The questions challenged the provision on grounds of legislative competence, the intelligibility of the law, equality before the law, and the right to an effective judicial remedy.
The Court’s Holding
The Second Civil Chamber declined to refer any of the four QPCs to the Constitutional Council, finding that none met the “serious question” standard required for referral. On the first question — whether the legislature violated its constitutional duty of clarity by leaving the specific disability percentage to executive decree rather than statute — the Court held that the constitutional objective of legislative intelligibility and accessibility cannot, standing alone, ground a QPC. Equally, a legislature’s failure to exercise its full competence (incompétence négative) is only cognizable in a QPC when it concretely affects a constitutionally guaranteed right or freedom, which the claimant did not establish.
On the second and third questions (equality), the Court held that the distinction between diseases listed in official tables and off-table diseases reflects an objective difference in situation, not an arbitrary disparity. Workers with a listed disease benefit from a presumption of occupational origin regardless of disability severity; workers with an off-table disease must clear the disability threshold to access CRRMP review. The Court found this differential treatment directly related to the law’s dual purpose: broadening occupational disease coverage while preserving the financial balance of the social security system.
On the fourth question (effective judicial recourse under Article 16 of the 1789 Declaration of the Rights of Man), the Court held that claimants whose off-table disease falls below the disability threshold are not left without remedy. They may challenge the disability rate assessment before the medical appeals commission (commission médicale de recours amiable) and then before social security courts, which retain full authority to order independent medical expert review. The right to an effective remedy is therefore satisfied through these existing procedural channels.
Key Takeaways
- The 25% permanent disability threshold required for CRRMP referral of off-table occupational diseases is constitutionally permissible; none of the four constitutional challenges to it cleared the seriousness bar.
- Legislative intelligibility and incompétence négative cannot independently ground a QPC unless they affect an identifiable constitutionally guaranteed right or freedom — a claimant must specify which right is concretely impaired.
- The two-track system — presumption of occupational origin for listed diseases versus causal-proof requirement for off-table diseases — is not an equality violation because the two groups are in objectively different situations and the distinction serves the law’s stated aims.
- Workers denied CRRMP review due to a low disability rate retain effective judicial recourse by contesting the disability rate assessment itself before medical appeals bodies and social security courts.
Why It Matters
This decision consolidates the constitutional standing of France’s two-track occupational disease recognition system at a moment when mental health conditions — including reactive depression and anxiety disorders — are increasingly the subject of professional disease claims. Workers suffering from conditions not listed in the official tables face a significantly higher bar than those with listed diseases: they must demonstrate both direct causal connection to their work and a permanent disability of at least 25%. The Court’s refusal to refer these questions to the Constitutional Council signals that this threshold, and the procedural barriers it creates, will not face imminent constitutional scrutiny.
For practitioners advising clients with occupational illnesses that fall outside the official tables and below the disability threshold, the ruling confirms that the practical litigation avenue remains a challenge to the disability rate assessment itself — not a constitutional attack on the threshold’s existence. Employers and insurers operating under the agricultural social security regime (mutualité sociale agricole) can take note that the current framework, including the CRRMP gatekeeping mechanism, has survived this constitutional challenge intact.