Who benefits from multidisciplinary care in functional somatic disorders? Identifying cost-effective patient selection through diagnostic classification groups

Healthcare utilization and costs were reduced among FSD patients receiving multidisciplinary treatment, with outcomes varying by diagnostic classification. Baseline diagnostic classification reliably predicted treatment cost-effectiveness, underlining the economic value of collaborative care for patients with simple functional disorders and stress-exacerbated diseases. These diagnostic patterns provide healthcare policymakers with selection criteria for multidisciplinary programs and inform the development of tailored interventions.