*415 OPINION
Appellants Kirk N. Gomon and Carol Gomon brought a medical malpractice action against respondents Northland Family Physicians, Ltd. and Harvey D. Smith, M.D. The St. Louis County District Court granted respondents’ motion for summary judgment, finding that the action was barred under the two-year statute of limitations in force at the time the cause of action accrued. The court of appeals affirmed. Because we hold that Minn.Stat. § 541.076 (2000) applies retroactively to revive an action that was time-barred before the effective date of the new statute, we reverse.
On July 23, 1996, Kirk Gomon was seen for a physical examination by Dr. Harvey D. Smith, a family practice physician employed by Northland Family Physicians, Ltd. (the clinic). During the examination, Dr. Smith observed that Gomon’s left nipple was inverted and that there was a palpable mass surrounding the area of the nipple. Dr. Smith identified the mass as Gomon’s nipple, and did not recommend further testing or treatment. In July and August 1998, following medical visits at a different clinic, Gomon was diagnosed with and began treatment for breast cancer. On December 3, 1999, Gomon and his wife commenced a medical malpractice action against respondents Dr. Smith and the clinic. The suit alleged that the conditions noted by Dr. Smith required further evaluation for breast cancer and that diagnosis and treatment following Gomon’s July 1996 visit with Dr. Smith would have led to successful treatment of the cancer. The complaint further alleged that because of the delay in diagnosis and treatment the cancer had spread and it was probable that Gomon would not survive.
At the time the Gomons’ cause of action accrued, on July 23, 1996, the statute of limitations governing medical malpractice claims required that an action be brought within two years of accrual. See Minn. Stat. § 541.07(1) (1996). Subsequently, the legislature enacted an amendment to the statute deleting the two-year statute of limitations for medical malpractice actions and replacing it with a four-year limitations period, effective on August 1, 1999, for actions commenced on or after that date. See Act of Mar. 26, 1999, ch. 23, §§ 1-3, 1999 Minn. Laws 128, 128 (hereinafter referred to as “1999 Act”), codified at MinmStat. § 541.076. In their answer to the Gomons’ complaint, Dr. Smith and the clinic asserted a statute of limitations defense and in May 2000 respondents moved for summary judgment asserting that the cause of action was time-barred.
The St. Louis County District Court applied the two-year limitations period in effect at the time the Gomons’ cause of action accrued, and granted respondents’ motion for summary judgment. The court concluded that the amendment to the limitations period did not revive the Gomons’ otherwise time-barred action.
The Gomons appealed, and the court of appeals affirmed the summary judgment in favor of respondents holding that Minn. Stat. § 541.076 did not apply retroactively to revive the Gomons’ malpractice claim that was time-barred prior to August 1, 1999. This appeal followed.
This court reviews a district court’s order of summary judgment to determine whether there is any genuine issue of material fact and whether the district court correctly applied the law.
Offerdahl v. Univ. of Minn. Hosp. & Clinics,
When interpreting a statute, a court must first determine whether the statute’s language, on its face, is clear or ambiguous.
See Amaral v. Saint Cloud Hosp.,
The parties do not dispute that the Go-mons’ cause of action against respondents accrued on July 23, 1996, when Dr. Smith saw Kirk Gomon for a physical examination. At that time, the statute of limitations for medical malpractice claims was two years from the date the claim accrued, Minn.Stat. § 541.07, and therefore under the two-year limitations period the Go-mons’ malpractice claim became time-barred on July 23, 1998. However in a 1999 Act, the legislature deleted the two-year statute of limitations for medical malpractice actions and replaced it with a four-year limitations period. See 1999 Act. The Act provides:
An action by a patient or former patient against a health care provider alleging malpractice, error, mistake or failure to cure, whether based on contract or tort, must be commenced within four years from the date the cause of action accrued.
1999 Act, § 2. The Act also included an effective date clause providing that the new four-year limitations period was “effective August 1, 1999, and applies to actions commenced on or after that date.” 1999 Act, § 3. The Gomons commenced their action on December 3, 1999, within four years after the date the cause of action accrued, but beyond the two-year period of time allowed by the prior statute of limitations. Therefore the issue before this court is whether the Gomons’ cause of action was revived by the 1999 Act.
Two canons of statutory construction guide the court’s analysis of this issue. The first is set forth in Minn.Stat. § 645.16 (2000), which provides:
When the words of a law in their application to an existing situation are clear and free from all ambiguity, the letter of the law shall not be disregarded under the pretext of pursuing the spirit.
Thus the court must give a plain reading to any statute it construes, and when the language of the statute is clear, the court must not engage in any further construction.
See State by Beaulieu v. RSJ, Inc.,
No law shall be construed to be retroactive unless clearly and manifestly so intended by the legislature.
In accordance with this canon, this court has held that a legislature can, by expression of clear legislative intent, retroactively amend a statute of limitations.
Donaldson v. Chase Sec. Corp.,
The Gomons argue that the language in the effective date provision of the 1999 Act, stating that the new limitations period “is effective August 1, 1999 and applies to actions commenced on or after that date,” should be given its plain and unambiguous meaning. Further, while acknowledging that a law is not retroactive unless retroactive effect is “clearly and manifestly so *417 intended by the legislature,” Minn.Stat. § 645.21, the Gomons contend that the language of the effective date provision is a clear expression of such intent. Thus they argue that the presumption against retro-activity expressed in Minn.Stat. § 645.21 is defeated.
The language of Minn.Stat. § 541.076 is straightforward and uncomplicated — a medical malpractice action “must be commenced within four years from the date the cause of action accrued.” We agree with the Gomons that the language of the effective date provision is similarly clear-cut — the new four-year limitations period is “effective August 1, 1999, and applies to actions commenced on or after that date.” Nothing in Minn.Stat. § 541.076 or its effective date provision suggests any limitations or exceptions from the four-year limitations period. The statute simply provides that a medical malpractice action commenced on or after August 1, 1999, is subject to the new four-year statute of limitations. Here, the Gomons’ medical malpractice action was commenced on December 3, 1999, a date subsequent to the effective date of Minn.Stat. § 541.076. Further, the cause of action accrued on July 23, 1996, which is within four years of December 3, 1999: Therefore, applying the plain meaning of the statute and its effective date provision, the Gomons’ claim may go forward.
Although we conclude that the plain meaning of Minn.Stat. § 541.076 and its effective date provision is not an impediment to the Gomons’ claim, the new statute of limitations still must be interpreted in light of the second relevant canon of interpretation concerning retroactive application of statutes, Minn.Stat. § 645.21. Section 645.21 provides: “No law shall be construed to be retroactive unless clearly and manifestly so intended by the legislature.” In light of this canon and our analysis of the relevant case law, we conclude that the plain language of MinmStat. § 541.076 and its effective date provision expresses the legislature’s intent to revive certain claims, such as the Gomons’, and that no additional expression of legislative intent is required.
Respondents acknowledge that the legislature has the power to enact retroactive legislation, citing MinmStat. § 645.21, and they further concede that this power extends to retroactive legislation that revives claims that have already become time-barred, citing
Donaldson,
216 Minn, at 274,
The court of appeals agreed with respondents’ argument, and concluded that the law regarding retroactivity distinguishes between extension and revival of a claim.
Gomon v. Northland Family Physicians, Ltd.,
Upon examination, we conclude that the cases cited by the respondents and relied on by the court of appeals do not require distinguishing between revival and extension except where the legislature expresses its intent to impose such a distinction through the plain language of the statute. To the extent that
Kannellos
and
Whittier
analyze revival as distinct from extension, this view is probably based on the court’s belief at that time that the legislature lacked authority to revive an expired claim by amendment of the statute of limitations.
See Kannellos,
151 Minn, at 160-61,
We also conclude that
Kannellos
and
Whittier
do not support the conclusion that the legislature must
specifically
express its intent to revive time-barred claims over and above a clear and manifest expression of its intent that a statute apply retroactively. The court of appeals quotes language from these cases to support this proposition, noting that in
Whittier
this court stated that “the intention to revive should be made clearly to appear by the terms of the statute, and not left to inference” and in
Kannellos
stated that “an intent [to revive] should be specific in language and free from doubt.”
Gomon,
Further, a closer examination of this court’s holding in
Donaldson
clearly demonstrates that this court has not required a greater level of specificity to revive time-barred claims than the clear expression of legislative intent. 216 Minn, at 269,
Based upon our analysis of the case law, we reverse the court of appeals’ decision and decline to view revival of time-barred claims separately from other forms of retroactive application of a statute by requiring additional express language of revival over and above the requirement that intent to revive be clearly and manifestly expressed.
See
MinmStat. § 645.21. In so holding, however, we do recognize that constitutional or other constraints may limit the legislature’s power to enact retroactive legislation in certain circumstances.
See, e.g., Traczyk,
In sum, based on the plain meaning of Minn.Stat. § 541.076 and its effective date provision, the new statute of limitations for medical malpractice claims applies to all claims that are within the four-year limita *420 tions period and are commenced on or after the effective date of the new statute. We decline respondents’ request to graft a limitation — exclusion of expired claims — on section 541.076 because such a limitation is not expressed in the plain language. Although the legislature could have treated an expired claim such as the Gomons’ differently than a claim that was not yet time-barred, nothing in the language of the statute or its effective date provision suggests the legislature intended such a result. Accordingly, we hold that the legislature by its use of plain and unambiguous language clearly and manifestly expressed its intent that the four-year statute of limitations established by MinmStat. § 541.076 for medical malpractice claims be applied retroactively. Because the Gomons’ commenced their cause of action on December 3, 1999, within four years of when it accrued, their claim must be permitted to proceed.
Reversed and remanded.
Notes
. The court of appeals also relies on
Klimmek,
. The statutory language at issue in Donaldson provided:
No action shall be maintained for relief upon a sale of securities * * * unless commenced within six years [after the securities were delivered], provided that if, prior to the effective date of this section, more than five years shall have elapsed from the date of such delivery, then such action may be brought within a period of one year following such effective date.
216 Minn, at 272,
. The statute at issue in Donaldson, as interpreted by this court, did not establish a limit on how far back in time claims would be revived. In the instant case, a narrower window of revival was created by the legislature. Specifically, only the claims that accrued between August 1, 1995 and July 31, 1997 are revived by section 541.076. Claims that accrued between August 1, 1997 and July 31, 1999 would not have been time-barred at the time the statute of limitations was amended, and claims that accrued before August 1, 1995 fall outside the four-year period established by section 541.076.
