The Guiding principles for managing requests for the secondary use of de-identified general practice data provides decision-making support to assist you and your practice staff to decide whether it is appropriate to release de-identified healthcare data at the request of an external organisation.
In health care, the primary source of data is through clinical care delivery to patients and when this data is used outside of the general practice setting, for purposes other than which it was originally collected, it is referred to as 'secondary use of data'.