Mental Health Services Data Set Version 4.1

The Mental Health Services Data Set (MHSDS) is a patient level, output-based, secondary uses data set to deliver nationally consistent and comparable person-based information for children, young people and adults who are in contact with mental health, learning disabilities or autism spectrum disorder services. 

Service providers and organisations in England that provide specialist secondary mental health and/or learning disabilities and/or autism spectrum disorder services (irrespective of funding arrangements) including:

• NHS Mental Health Trusts
• NHS Acute Trusts
• NHS Community Health Trusts
• Independent and third sector healthcare providers and any other qualified providers offering a service model that includes NHS funded and non-NHS funded patients.

NHS Digital has been directed by NHS England under section 254 of the Health and Social Care Act 2012; to establish and operate a system for the collection and analysis of the information specified for this service.

Read the Mental Health Services Directions 2020

Version 4.1 of the Mental Health Services Data Set came into effect on 1 April 2020, with submission as set out in the MHSDS submission timetable.

Read the MHSDS submission guidance and timetable