The Chief Executive for NHS Wales is to outline how ready health boards are for the winter pressures. Last year 53 of the 'at most risk' A and E departments received funding to help with an increase in admissions.
The Chief Executive of NHS Wales, Dr Andrew Goodall, says health boards should not book operations if they'e not possible.
He said: "We need to prioritise patients coming through the front door."
The boss of NHS Wales has revealed plans by health boards, local authorities and the ambulance service to ease pressures during winter.
The Chief Executive for the NHS in Wales is to outline how health boards planning for winter pressures.