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Routine Quarterly Mental Health Minimum Data Set (MHMDS) Reports - Final Q2 and Provisional Q3 2011-2012, Summary statistics and related information

Publication date: 09:30 April 12, 2012


Due to a technical error, incorrect results were published for Indicator 5. This was rectified on 17 April 2012 and the correct results are now shown. We apologise for this error.


Mental Health Minimum Dataset (MHMDS) is a regular return of data from providers of NHS funded adult secondary mental health services, produced during in the course of delivering services to patients. Providers currently submit data every quarter. From Quarter 1 2011/12, a new version of MHMDS (version 4) includes new data items and is processed using a new system. Some of the changes have been introduced to support the implementation of of Payment by Results for mental health.


  • Read full details of the data specification.
  • Read the Information Standards Notice for MHMDS version 4 (Information Standards Board website)

  • Key Facts

    The Data Quality Measures produced from Q2 final data showed:

    • Over 97 per cent of records had valid coding for NHS Number, Postcode, Birth date and Gender.
    • 94 per cent of Primary Diagnosis records had valid codes
    • The experimental analysis suggests that over 750,000 people were in scope for Payment by Results for Mental Health at the 31st December 2012. This experimental figure should be treated with caution and is presented to help providers in the implementation phase only at this time.
    • Not all providers who were expected to make a submission did so, mostly for administrative or technical reasons.
    • Data quality assessments are being carried out in conjunction with suppliers and are on-going. It is important to treat all statistics with caution especially when comparing historical data and to refer to the background data quality statement which accompanies this release and provides further details about coverage, issues and changes relating to the move to version 4 MHMDS.


    Date Range: 12 April 2012 to 12 April 2012
    Geographical coverage: England

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