OPINION
The primary issue in this appeal is whether the two-year statute of limitations applicable to a medical malpractice action is tolled until plaintiffs’ counsel secures an expert opinion of malpractice. We hold that it is not, based upon the undisputed facts presented by this case. Our review of this question of law is de novo.
United Bank of Arizona v. Allyn,
Rosalie Kowske was a nursing care patient at Life Care Centers of Sierra Vista (Life Care). She died there on October 12, 1987. An autopsy was performed the following day by Dr. Guery Flores, who stated the following in his November 18 letter to the surviving spouse, Edward Kowske:
I have received and reviewed the medical records on your wife, Rosalie Kowske. After careful review I have found no signs of misdiagnosis or mistreatment of your wife. The autopsy revealed nothing significant in this regard either.
I am returning the medical records to you. Please feel free to take them to another physician for a second opinion. A copy of the autopsy report is enclosed as you requested.
Mr. Kowske and his daughter Carol conferred with a Tucson attorney during April and May 1988, and provided him with Mrs. Kowske’s medical records. He requested that the records be reviewed by Sue Smid, R.N., who advised him on June 23, 1988, that it was her opinion that Mrs. Kowske received substandard nursing or medical care prior to her death. Within two years of that date, the Tucson attorney filed the *537 medical malpractice action giving rise to this appeal. 1
Life Care moved to dismiss the complaint based on the two-year statute of limitations for medical malpractice actions. See A.R.S. § 12-542. The motion was joined by the other defendants, and plaintiffs filed their response, attaching as exhibits the autopsy report, Dr. Flores’s letter, and the affidavits of the Tucson attorney and Ms. Smid. The motion to dismiss was granted. We treat it as a motion for summary judgment because the trial court’s minute entry reflects that it considered plaintiffs’ response which, as noted above, included “matters outside the pleadings____” See Rule 12(c), Ariz.R.Civ.P., 16 A.R.S.
A.R.S. § 12-542 bars a medical malpractice action which is not “commenced and prosecuted within two years after the cause of action accrues____” Although the word “accrues” is not statutorily defined, it has been judicially defined as that date “when the plaintiff knew or by the exercise of reasonable diligence should have known of the defendants’ con-duct____”
Mayer v. Good Samaritan Hospital,
As we said in
Insurance Company of North America v. Superior Court in and for County of Santa Cruz,
Plaintiffs contend, however, that that legal evaluation necessarily includes obtaining an expert’s opinion of malpractice in a non-obvious medical malpractice action such as theirs. They argue that such an action does not accrue until that opinion is obtained, because without it, the attorney would be precluded from filing the action under Rule 11(a), Ariz.R.Civ.P., 16 A.R.S., it would be unethical to do so under ER 3.1, 3.2, and 3.4, Ariz.R.Prof.Conduct, Rule 42, Ariz.R.Sup.Ct., 17A A.R.S., the action would be subject to summary judgment under Rule 56, Ariz.R.Civ.P., 16 A.R.S., and it would be unprovable under A.R.S. § 12-563(A). While this may be so, these are not grounds for tolling the statute of limitations. Counsel’s opinion that a cause of action is meritorious is not determinative of when it accrues. “If the law were otherwise, the statute [of limitations] would not begin to run until a plaintiff consults an attorney who recognizes that there is a cause of action.”
Insurance Company of North America,
Plaintiffs’ final contention is that the application of A.R.S. § 12-542 to non-obvious medical malpractice actions denies such claimants equal protection under Article 2, § 13, of the Arizona Constitution *538 because, as plaintiffs assert on page 15 of their opening brief, “[claimants in non-obvious cases must obtain expert testimony to prove the elements of a medical malpractice claim as stated in A.R.S. § 12-563 and under the common law requirement.” We reject this assertion.
As to A.R.S. § 12-563, we find nothing in the statute which either expressly or implicitly imposes a requirement for such expert testimony solely upon non-obvious medical malpractice actions, and not upon obvious ones. A.R.S. § 12-563 simply sets forth the following elements of proof required for any health care action:
1. The health care provider failed to exercise that degree of care, skill and learning expected of a reasonable, prudent health care provider in the profession or class to which he belongs within the state acting in the same or similar circumstances; and
2. Such failure was a proximate cause of the injury.
As to plaintiffs’ assertion of a “common law requirement,” they cite no authority for one and we know of none. We therefore conclude that because plaintiffs are within a class whose members are treated alike, and reasonable grounds exist for such classification, the equal protection clause is satisfied.
Wilson v. Industrial Com’n of Arizona,
Affirmed. Defendants’ request for attorney’s fees on appeal is denied.
Notes
. The action was filed on June 18, 1990. Shortly thereafter, plaintiffs’ present counsel was substituted as counsel of record for the Tucson attorney.
