Mapping the Healthcare Pathway to Multidisciplinary Assessment of 12-25 Year Olds With Somatic Symptom Disorder

Inclusion Criteria: Criteria relating to the population studied: * Age between 12 and 25 years old * Diagnosis of somatic symptom disorder and derivatives (DSM 5) after specialized multidisciplinary evaluation by the team of the Maison des Adolescents of Cochin hospital (Maison de Solenn). Criteria relating to the additional population participating in the research: \- Being a parent of a subject who has received the diagnosis of somatic symptom disorder and derivatives (DSM 5) after specialized multidisciplinary evaluation at the Maison des Adolescents of Cochin Hospital (Maison de Solenn). Exclusion Criteria: Criteria relating to the population studied: * Age less than 12 years or greater than 25 years at the time of assessment, * Subject presenting ongoing psychiatric decompensation, that is to say a state of mental health breaking with their baseline state and requiring rapid care which does not allow a research interview to be carried out. Criteria relating to the additional population participating in the research: None