In their policy on shared care, NHS England quotes three main principles from Department of Health Guidance:
1. The NHS should not withdraw NHS care because a patient chooses to buy private care, nor should patients who access private care be placed at an advantage or disadvantage in relation to the NHS care they receive.
2. The NHS should continue to provide free of charge all care that the patient would have been entitled to had they not chosen to have additional private care.
3. Where the same diagnostic, monitoring or other procedure is needed for both the NHS and private elements of care, the NHS should provide this free of charge and share the results with the private provider.