OPINION
¶ 1 The issue is whether an action to recover medical expenses for injuries to a child is time-barred. Revising Arizona’s common law rule, we hold that both the minor and the
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minor’s parents are entitled to recover premajority medical expenses, but double recovery is not permitted.
Pearson & Dickerson Contractors, Inc. v. Harrington,
I.
¶ 2 On November 10, 2004, Maddison DeSela, then fifteen years old, sustained a life-threatening injury at Prescott High School. On January 31, 2005, Maddison’s mother assigned to Maddison all claims for medical expenses incurred from the accident.
¶ 3 On March 22, 2005, Maddison filed a notice of claim with the Prescott Unified School District pursuant to A.R.S. § 12-821.01(A) (2010). This statute generally requires persons having claims against public entities or employees to file pre-litigation notices within 180 days after the claim accrues, but minors may file such notices within 180 days after turning eighteen. See A.R.S. § 12-821.01(D). Another statute sets a deadline for filing a lawsuit: “All actions against any public entity or public employee shall be brought within one year after the cause of action accrues and not afterward.” A.R.S. § 12-821. A minor, however, may bring such an action that accrues during childhood within one year after turning eighteen. See A.R.S. § 12-502 (2010) (providing that minor or person of unsound mind “shall have the same time after removal of the disability which is allowed to others” to file suit).
¶ 4 Maddison turned eighteen on December 29, 2006. About six weeks later, a court-appointed conservator filed another notice of claim on Maddison’s behalf. On December 31, 2007, Maddison’s Estate filed this negligence action against the Prescott Unified School District and several school employees (collectively “PUSD”). This filing was within a judicial year of Maddison’s eighteenth birthday because December 29, 2007, fell on a Saturday. The complaint sought damages for physical and emotional pain, disability, lost earnings, loss of enjoyment, and medical expenses. PUSD moved to dismiss the action for medical expenses, arguing that the cause of action originally belonged to Maddison’s mother and was not brought within one year of its accrual, as required by A.R.S. § 12-821. The superior court granted the motion to dismiss and entered judgment under Arizona Rule of Civil Procedure 54(b).
¶ 5 The court of appeals reversed.
Estate of DeSela v. Prescott Unified Sch. Dist.,
¶6 PUSD petitioned for review, arguing that the court of appeals erred by applying § 12-502 to toll the limitations period for an assigned cause of action or, alternatively, by not subtracting eighty-two days from Maddison’s one-year limitations period to reflect the time between the accrual of the action and its assignment. We granted review because determining the limitations period for recovery of medical expenses resulting from injuries to minors is an issue of statewide importance. We have jurisdiction under Article 6, Section 5(3) of the Arizona Constitution and A.R.S. § 12-120.24.
II.
¶ 7 The court of appeals assumed, consistent with
Pearson,
that a parent is
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entitled to recover medical expenses for injury to the child, but the parent may assign the claim to the child.
Estate of DeSela,
¶ 8 Before this Court, Maddison’s Estate argued for the first time that
Pearson
should be reconsidered and that the right to recover medical expenses should belong to both the parent and child, provided that no double recovery may occur. Arguments raised initially in a supplemental brief are generally deemed waived.
See Grand v. Nacchio,
¶ 9
Pearson,
decided in 1943, stated that in cases involving injury to a child, “the proper party to bring an action for ... the expenses of medical care and treatment [is] the parent and not the [injured] child.”
¶ 10 We agree that
Pearson
should be reconsidered insofar as it holds that, absent an assignment, the right to recover pre-majority medical expenses belongs to the parent and not the child.
Pearson
relied on
Gerrard,
which held that “ordinarily an infant suing for personal injuries cannot recover for the impairment of his earning capacity during infancy, or for loss of time, or for expenses in curing his injuries.”
¶ 11 The underpinnings of
Pearson
and
Gerrard
have been eroded by the development of Arizona’s common law.
Gerrard
treated the parent-child relationship in economic terms, much like the relation between master and servant. In determining tort liability for injuries to children, however, we have since observed that “the common law master-servant analogy is clearly antiquated and long overdue for judicial burial.”
Howard Frank, M.D., P.C. v. Superior Court,
¶ 12 We thus consider whether other reasons justify retaining Pearson’s common law rule. PUSD argues that treating a claim for medical expenses as “solely owned” by the parents (1) provides a set time, measured by *390 the limitations period applicable to the parents, in which a claim for medical expenses may be brought; (2) prompts the earlier filing of any separate action by the child for damages other than medical payments (such as pain, disfigurement, or disability) concurrently with the parents’ claim for medical expenses; and (3) allows defendants, particularly public entities, to assess their potential liability and make budgeting decisions nearer in time to the underlying injury.
¶ 13 The disadvantages of the
Pearson
rule outweigh the arguments for its retention.
Cf. Villareal,
¶ 14 Although the
Pearson
rule may encourage the bringing of claims for medical expenses within the parents’ limitation period, it does so at the cost of promoting piecemeal litigation, at least in the absence of an effective assignment.
Cf. State ex rel. Packard v. Perry,
¶ 15 Because the common law should adapt when circumstances make it no longer just or consistent with sound policy,
see Villareal,
¶ 16 Under today’s holding, the superior court erred in dismissing the Estate’s action seeking recovery of medical expenses. Maddison, through her Estate, brought this action within one judicial year after she turned eighteen, and the action was thus timely under A.R.S. §§ 12-502 and 12-821. Because Maddison was entitled to bring the claim in her own right, independent of any assignment, we need not address the application of A.R.S. § 12-502 to other actions that are assigned to a minor.
III.
¶ 17 Pearson and Gerrard are overruled insofar as they conflict with this opinion. We vacate the opinion of the court of appeals, reverse the superior court’s judgment, and remand this case to the superior court for further proceedings.
