Genetic analysis using high-throughput sequencing is a powerful tool for patients with rare diseases. However, biological and clinical interpretation thereof is difficult, especially when the clinical picture is complex. Multidisciplinary Genome Boards bring together the relevant medical specialties around the patient's medical and genetic file, to optimize the correlation between phenotype and genotype. This often allows the identification of the causal genetic variant in previously unsolved cases. A retrospective study shows that Genome Boards significantly increase the diagnostic rate in complex clinical cases with difficult-to-interpret genetic analysis results, as well as facilitating collaboration between the various medical specialties involved.