External
Most contributors are required to undergo medical examinations before or shortly after commencing employment with the Commonwealth. This is a condition of service and identifies whether the employee has any pre-existing medical conditions.
Both CSS and PSS schemes make allowances for such medical conditions. Where an employee is later retired from work as a result of the pre-existing condition, there are restrictions to what is then paid to that employee.
However, the benefit structures of the two schemes are significantly different.