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Mental Health Services Data Set (MHSDS) and the Commissioning Data Sets (CDS)

MHSDS v4.1 includes data items that relate to hospital attendances in the outpatient, inpatient and ward stay tables. Some of the data items in these tables overlap with the Commissioning Data Sets (CDS) both with regard to mental health and learning disabilities or autism spectrum disorder services.

We are aware there is duplication in the provision of some data items and work is underway to investigate reducing the data collection burden on providers. For now, to ensure we don’t lose mental health data, we would advise that you continue to submit appropriate mental health data to both the MHSDS and the CDS. It is expected that the next update of the CDS Standard will explore this duplication. However, the updated CDS information Standard Notice is currently not due until later in 2020-2021 with implementation likely during 2021-2022. If approved, this would mean that data for mental health services which are covered by MHSDS would no longer need sending to admitted patient care, out patients and A&E or Emergency Care Data Set (ECDS). 

The data submitted is used for a range of purposes which require different coding standards. Therefore, in terms of coding standards used we recommend:

Data relating to in-patient care and day care cases should be submitted to both MHSDS and admitted patient care, out patients and A&E or ECDS

  • ICD-10 and OPCS-4 are current standards relating to completed episodes of care. This data needs to be provided to NHS Digital
  •  interventions submitted to MHSDS should be submitted in SNOMED CT and are part of the 2019/2020 CQUIN
  • the diagnosis for a patient can only be provided to MHSDS in either ICD-10 or SNOMED CT but not both. For in-patient care you must submit diagnosis in ICD-10 if you are no longer submitting data to CDS

Data relating to patient activity that is not in-patient or day care

  • data must be submitted to MHSDS
  • data relating to diagnosis and interventions must be submitted in SNOMED CT

Some of the work that is underway to investigate reducing the data collection burden on providers and reduce the number of duplicate collections, includes the following:

Assuring Transformation (AT) 

Currently collected in two systems, MHSDS and the Clinical Audit Platform (CAP), both of which are record level collections. To date NHS Digital have engaged with providers to understand the root causes of differences between the collections, work remains ongoing to explore the most suitable long-term solution for collection of this data.

Out of Area Placements (OAP)

Currently collected in two systems, MHSDS and CAP, both of which are record level collections Through engagement with providers there have been significant improvements in provider submissions of OAPS data to MHSDS, work remains ongoing to increase the quality of data, especially from providers who receive out of area placements.

Children and Young People’s Eating Disorders (CYP-ED)

Currently collected in two systems, MHSDS and SDCS classic; MHSDS being a record level collection whilst SDCS classic is an aggregate collection. Through engagement with providers there has been good progress on improving provider submissions and providers are starting to flow SNOMED codes. Discussions are ongoing with NHS England to ensure the required SNOMED codes needed to stop the clock are correct and reflect clinical practice.

Delayed Transfers of Care (DToC)

Currently collected in two systems, MHSDS and as part of the Monthly Situation Report (MSitDT); MHSDS being a record level collection whilst the MSitDT is an aggregate collection. As at May 2020, the intention is to publish measures from MHSDS in July 2020 for the April 2020 data period.

Last edited: 10 June 2020 10:15 am