DAPB0011: Mental Health Services Data Set

About this information standard

The Mental Health Services Data Set (MHSDS) is a patient level, output based, secondary uses data set which aims to deliver robust, comprehensive, nationally consistent and comparable person-based information for children, young people and adults who are in contact with services for mental health and wellbeing, learning disability, autism or other neurodevelopmental conditions. As a secondary uses data set it re-uses clinical and operational data for purposes other than direct patient care. It defines the data items, definitions and associated value sets to be extracted or derived from local information systems.

This information standard is published under section 250 of the Health and Social Care Act 2012. An Information Standards Notice (see below) provides an overview of scope and implementation timescales, and the other listed documents provide further detail for those who have to implement the information standard.

Current release

Version 6.0

Release date	6 July 2023
Release number	Amd 37/2022
Stage	Implementation (until 31 May 2024)
Key documents	Change Specification v1.1 (Amd 37/2022) Requirements Specification (Amd 37/2022) Implementation Guidance v1.1 (Amd 37/2022) Information Standards Notice (Amd 37/2022) Corrigendum (Amd 37/2022)
Supporting documents	Technical Output Specification v1.1 (Amd 37/2022) NHS Data Model and Dictionary Change Request 1872 v2.0 (Amd 37/2022) (Basic CR) NHS Data Model and Dictionary Change Request 1872 v2.0 (Amd 37/2022) (Data Set CR)
Further information	NHS Digital MHSDS web pages

Previous releases

Version 5.0

Release date	8 April 2021 (updated 6 August 2021, 7 January 2022)
Release number	Amd 29/2020
Stage	Maintenance
Key documents	Change Specification v1.1 (Amd 29/2020) (August 2021) Requirements Specification (Amd 29/2020) Implementation Guidance (Amd 29/2020) Information Standards Notice (Amd 29/2020) Corrigendum (Amd 29/2020) (August 2021) Second Corrigendum (Amd 29/2020) (January 2022)
Supporting documents	Data Set Specification v1.2 (Amd 29/2020) (January 2022) [Archive Content] NHS Data Model and Dictionary Change Request 1856 v1.0 (Amd 29/2020) (Basic CR) (January 2022) NHS Data Model and Dictionary Change Request 1768 v2.0 (Amd 29/2020) (Basic CR) (August 2021) NHS Data Model and Dictionary Change Request 1768 v2.0 (Amd 29/2020) (Data Set CR) (August 2021)
Further information	NHS Digital MHSDS web pages

Version 4.1

Release date	9 October 2019
Release number	Amd 43/2019
Stage	Superseded
Key documents	Change Specification (Amd 43/2019) Requirements Specification (Amd 43/2019) Implementation Guidance (Amd 43/2019) Information Standards Notice (Amd 43/2019)
Supporting documents	Data Set Specification (Amd 43/2019) [Archive Content] NHS Data Model and Dictionary Change Request - 1732 (Basic CR) (Amd 43/2019) NHS Data Model and Dictionary Change Request - 1732 (Data Set CR) (Amd 43/2019) NHS Digital Data Provision Notice

Details of previous releases are available on the DCB0011 and SCCI archive page.

Updates

Update 6 February 2024: Publication of Corrigendum in respect of Version 6.0, supported by changes to the Technical Output Specification and Change Specification (uplifted to document versions 1.1). Please see Corrigendum above for full details. A minor editorial correction has been made to the Implementation Guidance (also uplifted to version 1.1) to ensure the descriptions of Technical Output Specification (TOS) and Enhanced Technical Output Specification (ETOS) are clear.

Update 7 January 2022: Publication of second Corrigendum in respect of Version 5.0, supported by changes to the Data Set Specification (uplifted to document version 1.2). See Second Corrigendum above for full details.

Update 6 August 2021: Publication of Corrigendum in respect of Version 5.0, supported by changes to Change Specification and Data Set Specification (both uplifted to document version 1.1). See Corrigendum above for full details.