The national data opt-out allows a patient to choose if they do not want their confidential patient information to be used for purposes beyond their individual care and treatment – for research and planning. Patients, or people acting for them by proxy, have control over setting or changing their own opt-out choice, and can change their mind at any time.
For further information and to make your choice please visit the NHS Digital website at https://www.nhs.uk/your-nhs-data-matters/