In an action brought by plaintiff's guardian ad litem for medical malpractice against defendant the County of Contra Costa arising out of injuries he sustained at birth, the trial court's entry of a jury verdict awarding plaintiff the present cash value of his future medical and rehabilitation care expense is reversed where the trial court erred in excluding evidence that health insurance benefits under the Patient Protection and Affordable Care Act (ACA) (Pub.L. No. 111-148 (Mar. 23, 2010) 124 Stat. 119) would be available to mitigate plaintiff's future medical costs.