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Hospital Episode Statistics (HES) data comes from the routine submissions of data from providers to NHS Digital for the purposes of payment for and commissioning of healthcare in England.
Changes to HES, August 2021
Automatic data cleaning and derivation rules documentation and the HES Patient ID sections have been removed from this page. Information on data cleaning and derivations can now be found in the HES Technical Output Specification found on the HES Data Dictionary.
For activity occurring from April 2021, the patient identifier in HES will change from HESID to the Master Person Service (MPS) person Identifier (MPS Person ID). This change will take effect from the April to July 2021 year to date provisional HES data release in September 2021 and will be applied to all previous years of HES data .The MPS Person ID will be the biggest change to HES and is part of a wider strategy to move to a common patient identifier across all national patient level data sets.
This interactive report provides a summary of high level counts of the extracts taken from SUS+. The first page gives a breakdown of number of records extracted by data set - Accident and Emergency (AE), Outpatient (OP) and Admitted Patient Care (APC) - and by organisation number and type (NHS and independent providers). The second page shows the number of records deleted from the SUS extract and the reason for the deletion. These removed records will not appear on the final HES data set. The third page offers some notes to clarify concepts or atypical trends.
Understanding volume of legally restricted codes in HES: April 2017 - March 2018
This document provides HES users a count of legally restricted records in HES from April 2017 - March 2018, by provider, for Admitted Patient Care and Outpatients. It highlights the differences in counts due to additional codes added by SUS+ that have since been reverted.
NHS Digital routinely collects data from hospital providers regarding a patient's time at hospital as part of the Commissioning Data Set (CDS). This is then processed and is returned to healthcare providers as the Secondary Uses Service (SUS) data set and is used by the NHS for operational purposes.
Most NHS hospital trusts submit data on a monthly basis by deadline following a two-phase reconciliation process to arrive at a final agreed position for each month's activity defined in the NHS Standard Contract for payment purposes. This data is consolidated, validated and cleaned and then used to create the Hospital Episode Statistics (HES) data set which is released on a monthly basis as official statistics.