The plaintiff appeals from the summary judgment entered in the Superior Court which barred her from proceeding against the defendant, Aetna Casualty and Surety Company (Aetna), on an underinsured motorist claim. In her action, the plaintiff sought an order compelling Aetna to submit to arbitration to resolve her claim of under-insurance coverage. G. L. c. 251 (1990 ed.). Aetna moved for summary judgment claiming issue preclusion, among other defenses. The judge granted the motion on the ground that a previous arbitration decision barred the plaintiffs action on the principles of res judicata. 1 We granted the plaintiffs application for direct appellate review, and we now affirm.
We recite the following pertinent facts: On January 8, 1985, the plaintiff was operating a 1976 Dodge Aspen automobile which was struck head-on by a Ford pickup truck owned by Lynn Stapleton and operated by Dana B. Wyman. Daly Chevrolet Company owned the Aspen which was insured under a policy issued by Utica Mutual Insurance Company (Utica). The Stapleton vehicle was also insured under a policy issued by Utica. In September of 1986, the plaintiff settled her claims against Stapleton, Wyman, and Daly Chevrolet for $50,000. (She collected the $25,000 policy limit of the bodily injury coverage on the Stapleton vehicle and the $25,000 policy limit of underinsured motor vehicle coverage on the Aspen.)
At the time of the accident, the plaintiff owned a 1980 Chevrolet Camaro automobile and her husband owned a 1983 Dodge automobile. The Camaro was insured under a policy issued by Metropolitan Property and Liability Insurance Company (Metropolitan) which provided underinsured motor vehicle coverage of $10,000. The Dodge was insured under a policy issued by Middlesex Insurance Company (Middlesex) which provided underinsured motor vehicle coverage of $10,000. The plaintiff sought to recover underin *426 surance benefits in the amount of $20,000 from Middlesex and Metropolitan and accordingly filed a demand for arbitration with the American Arbitration Association (AAA). Before the arbitration hearing was held, the plaintiff and Middlesex settled in the amount of $10,000, its uninsured motorist coverage. There appears to have been an agreement between the plaintiff’s attorney and Metropolitan’s attorney that the only issue before the arbitrator was the extent of the total value of the damages the plaintiff suffered as a result of the accident. The arbitrator determined that the amount of the plaintiff’s total damages was $65,000, and he ordered that this amount be reduced by the payments the plaintiff had already received. Since Middlesex had already settled with the plaintiff, Metropolitan paid her $5,000, the amount of the award not received from other sources. The plaintiff did not appeal from the arbitration award to a court of competent jurisdiction within thirty days of the arbitrator’s decision. See G. L. c. 251, §§ 13, 16.
At the time of the accident, the plaintiff’s son also owned an automobile. His automobile was covered by a policy issued by Aetna which provided underinsured motor vehicle coverage of $100,000. The plaintiff alleges that she did not seek to recover underinsurance benefits under the Aetna policy in 1986 because she had forgotten about its existence. In 1989, one year after the arbitrator’s award described above, she made such a claim which resulted in the summary judgment for Aetna.
A motion for summary judgment shall be granted where no material facts are in dispute and the moving party is entitled to judgment as a matter of law.
Cassesso
v.
Commissioner of Correction,
“When arbitration affords opportunity for presentation of evidence and argument substantially similar in form and scope to judicial proceedings, the award should have the same effect on issues necessarily determined as a judgment has.”
Bailey
v.
Metropolitan Property & Liab. Ins. Co.,
*428 The plaintiff argues here that the 1988 arbitration award should not preclude her from arbitration with Aetna because: (1) she did not have a full and fair opportunity to arbitrate the matter; (2) there is new evidence of a more serious medical condition; and (3) the arbitrator’s award was flawed. She further argues these three issues raise genuine issues of material fact and therefore summary judgment was improper. We address these arguments in turn.
Full and fair opportunity to arbitrate. The plaintiff contends she did not have a full and fair opportunity to arbitrate because: (a) of her medical condition, (b) she was unaware of the insurance policy with Aetna at the time of the arbitration and, (c) her attorney would have prepared the case differently had he known of that policy. This argument confuses the opportunity to arbitrate with the actual arbitration proceeding. In spite of what might have been her medical condition the fact of her son’s policy was easily discoverable by her attorney. Her medical condition did not prevent her or her attorney from proceeding with the arbitration. Her son and her husband had to have been aware of the Aetna policy. That easily discoverable evidence is not taken advantage of or is forgotten, does not mean that there has been a denial of an opportunity to raise the issue which that evidence would support.
Evidence of a more serious medical condition.
The plaintiff next claims she unknowingly suffered from memory loss in 1988 since her condition was not diagnosed until 1989, and this new evidence of a more serious medical condition warrants further arbitration of her damages. It is noteworthy that prior to 1988, the plaintiff was treated for the head injuries she sustained in the accident. Her memory loss existed in 1988 and, therefore, was not a new and unforeseen medical condition arising at the conclusion of the proceedings. See, e.g.,
VanAlstyne
v.
Whalen,
Flawed arbitration award.
The plaintiff next argues the arbitrator’s damage award is flawed because he exceeded his authority in violation of rule 30 of the Accident Claims Arbitration Rules of the AAA by awarding damages beyond the underinsured limits of the Middlesex and Metropolitan policies.
3
Generally, the parties to an arbitration can agree to arbitrate, subject to limited restrictions imposed by law, any matter in dispute. See
Lawrence
v.
Falzarano,
*430 We conclude that the judge correctly determined that the 1988 arbitration decision precluded the plaintiff from proceeding against Aetna and appropriately granted summary judgment.
Judgment affirmed.
Notes
The term “res judicata” has been replaced, in many cases, by the phrase “issue preclusion.” See
Almeida
v.
Travelers Ins. Co.,
Under the doctrine of issue preclusion, “[w]hen an issue of fact or law is actually litigated and determined by a valid and final judgment, and the determination is essential to the judgment, the determination is conclusive in a subsequent action between the parties, whether on the same or a different claim.” Restatement (Second) of Judgments § 27 (1982).
Rule 30 provides in part: “The arbitrator shall render a decision determining whether the insured person has a right to receive any damages under the policy and the amount thereof, not in excess of the applicable policy limits.”
