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National Events Management


Why and how we process your data in the National Events Management Service (NEMS)  and your rights.

Controller NHS Digital
How we use the information (processing activities)

The National Events Management Service (NEMS) shares messages about events in patients and service users care and treatment, between permitted health and social care organisations, services, care-settings, professionals and patients / service users. This exchange occurs in near-real time for health and social care purposes including other additional purposes to support care. NHS Digital provides the means of supporting the service and processes the data between Controllers who publish and receive the shared personal data which flows through NEMS. NHS Digital does not access the content of the message or collect the messages. NHS Digital does collect a limited amount of data for audit and monitoring purposes. This data is necessary for the operational management and maintenance of the service, monitoring of controller usage and ensuring the exchange of messages is secure. NHS Digital manages the access to the NEMS service and validates, where necessary, the subscriptions against data we hold in the Personal Demographics Service.

Does this contain sensitive (special category) data such as health information? Yes
Who are recipients of this data?

Permitted health and social care organisations and healthcare professionals, providing services to those organisations, patients / service users including parents and carers. 

Is data transferred outside the UK? This data is not transferred out of the UK.
How long the data is kept 20 years, when no longer required for audit and monitoring purposes.
Our lawful basis for holding this data Legal obligation
Your rights
  • Tick Be informed
  • Tick Get access to it
  • Tick Rectify or change it
  • Cross Erase or remove it
  • Tick Restrict or stop processing it
  • Cross Move, copy or transfer it
  • Cross Object to it being processed or used
  • Cross Know if a decision was made by a computer rather than a person
How can you withdraw your consent?

Consent is not the basis for processing. 

Is the data subject to decisions made solely by computers? (automated decision making) No
Where does this data come from? The NEMS service shares data between controllers who have a legitimate purpose to share and access to support the delivery of health and social care. The data will come from health and social care organisations. NHS Digital also provides data to this service from the Personal Demographics Service (PDS), details about you are shared with providing health and social care services.
The legal basis for collecting this data

Article 6(1)(c) - Legal Obligation (Digital Interoperability Platform Direction)
Article 9(2)(h) - Management of health or social care systems and services
DPA 2018:
Schedule 1, Part 1, paragraph 2 - Health or social care purpose.

Where NHS Digital uses this data



The Personal Demographics Service (PDS) is a national authoritative source of patient demographics data for the whole of the NHS.


National Events Management Service (NEMS)

The National Events Management Service (NEMS) enables the sharing of specific health information about a patient in near real-time. Information is shared in the form of event messages, following a publish and subscribe model and using the NHS Spine.