The Department of Health is about to end a consultation on increasing its use of patient data.
The department launched the consultation to look at ways the NHS can use information it collects about patients.
It is looking at using data for research, auditing the quality and safety of care, or management planning.
The data used will sometimes be anonymous, but the Department of Health said, "Sometimes it is useless unless it identifies individual patients."
The consultation finishes tomorrow (12 December) and the department will consider whether or not to increase the ways it uses data.