California Code, Penal Code - PEN § 1203.1j

In any case in which the defendant is convicted of assault, battery, or assault with a deadly weapon on a victim 65 years of age or older, and the defendant knew or reasonably should have known the elderly status of the victim, the court, as a condition of probation, shall order the defendant to make restitution for the costs of medical or psychological treatment incurred by the victim as a result of the crime, and that the defendant seek and maintain legitimate employment and apply that portion of his or her earnings specified by the court toward those costs.

The defendant shall be entitled to a hearing, concerning any modification of the amount of restitution, based on the costs of medical and psychological treatment incurred by the victim subsequent to the issuance of the order of probation.