Mental Health data (MHMDS, MHLDDS, MHSDS)
Includes data about adults in receipt of NHS funded specialist, secondary mental health or learning disability services.
Data set versions as presented in the DARS online system
Mental Health Minimum Data Set (MHMDS)
Mental Health and Learning Disabilities Data Set (MHLDDS)
Mental Health Services Data Set (MHSDS)
Access method
Mental Health Minimum Data Set (MHMDS) - extract only
Mental Health and Learning Disabilities Data Set (MHLDDS) - extract only
Mental Health Services Data Set (MHSDS) - The NHS England Secure Data Environment (SDE) service and extract
Data set available in packages
Packages are pre-defined groups of fields and or tables that allow a customer to select from a list that best meets their needs. Packages do not allow a customer to customise their field or table selection.
- Yes
Period of data coverage
Mental Health Minimum Data Set (MHMDS) 01/04/2006 to 31/08/2014
Mental Health and Learning Disabilities Data Set (MHLDDS) 01/09/2014 to 31/12/2015
Mental Health Services Data Set (MHSDS) 01/01/2016 ongoing
Geographical scope of data
England
Legal limitations applied to use
None
Linkable to other data sets
- Yes - options for linking using either pseudonymised or identifiable data
Associated data sets
Data collection process
Submitted by: Publicly funded mental health service providers
Collected by: NHS England
Frequency: Monthly
Clinical coding systems
Does the data set include any standardised systems of coding?
- SNOMED-CT (a structured clinical vocabulary for use in electronic health records.)
- ICD10 (International Classification of Diseases classifies diseases and other health conditions.)
Derived fields
Standardised formulation may be applied across multiple data sets to generate commonly derived fields. Any standard derivations applicable to this data set are listed below. Please note that this does not include bespoke derivations created specifically for the individual data set.
- GP_PRACTICE_CODE_TRACED (The GP Practice that the patient is registered at, as found when traced against the Person Demographic Service (PDS).)
- CCG_OF_RESIDENCE (Clinical Commissioning Group covering the area in which the patient’s postcode falls where data relates to pre 1 July 2022. Otherwise ICB Sub Location.)
- LSOA_OF_RESIDENCE (The Lower Super Output Area (lowest level without being disclosive) covering the area in which the patient’s postcode falls.)
- CCG_OF_REGISTRATION (Clinical Commissioning Group which has a commissioning relationship with the GP practice which the patient is registered at where data relates to pre 1 July 2022. Otherwise ICB Sub Location.)
- LA_OF_REGISTRATION (The Local Authority covering the area in which the patient’s GP practice falls.)
Third party licensing
Does the data set require copyrighted clinical assessment tools or outcome measures that require a licence?
- Please refer to the NCCR tools and measures library for details on applicable licences and how to register.
Advice and support
Governance of this data set is provided by:
Owning organisation: NHS England
Data Controller: NHS England
Data Processor: NHS England
NHS England provides a variety of functions for the data sets we make available. Therefore, our knowledge and understanding of the data will vary, impacting the level of advice and support we can provide.
In relation to this data set, we undertake end to end management and can therefore provide a full advice, guidance and support service.
Last edited: 11 June 2024 11:06 am