The Currencies data collected from the Mental Health Services Data Set.The Mental Health Services Data Set (MHSDS) collects data from the health records of individual children, young people and adults who are in contact with mental health services. The data is re-used for purposes other than their direct care and as such is referred to as a secondary uses data set. It defines data items, definitions and information extracted or derived from local information systems. https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/mental-health-services-data-set