No, not unless your employer’s policy provides for a payout, you do not have a right to cash out your unused sick days, like you can with vacation and paid time off.
If you leave your job and get rehired by the same employer within 12 months, you can restore what you had accrued in paid sick leave, given it was not paid out pursuant to a paid time off policy at termination.
David Payab, Esq. from The Law Offices of Payab & Associates can be reached @ (818) 918-5522 or by visiting http://payablaw.com/