Oregon Medical Malpractice Statute of Limitations: Key Deadlines

Oregon’s medical malpractice statute of limitations gives you two years from the date you discovered (or reasonably should have discovered) your injury to file a lawsuit, with an absolute five-year cutoff measured from the date of the treatment itself. Whichever deadline expires first controls your case. Oregon’s five-year cap is one of the strictest in the country because it overrides the protections that normally pause the clock for children and people with mental disabilities.¹

The Two-Year Deadline and When the Clock Starts

The two-year window applies to injuries arising from any medical, surgical, or dental treatment.¹ The clock does not always start on the date the mistake happened. Oregon uses a discovery rule: the two years begin when you first learn of the injury, or when a reasonable person in your position would have learned of it.

Say a surgical instrument is left inside a patient and no symptoms appear for a year. The two-year clock does not run from the surgery date. It runs from the day the patient discovered the retained object, or from the point at which symptoms were serious enough that a reasonable person would have investigated and found the cause.¹

The “should have discovered” standard is objective. It does not turn on when you personally connected the dots. It asks what a person exercising ordinary care for their own health would have done. If your symptoms would have prompted a reasonable patient to seek a second opinion, the clock may already be running even if you waited. That is where people quietly lose time.

The Five-Year Absolute Cap

Oregon also imposes a statute of repose. No matter when you discover the injury, you cannot file a medical malpractice lawsuit more than five years after the treatment, omission, or operation that caused the harm.¹

This deadline is absolute in a way the two-year rule is not. It runs from the treatment date, not from discovery, and it applies even when you had no way to know an injury existed. If the consequences of a misdiagnosis do not surface until six years after the appointment, the claim is barred.

The statute uses the phrase “notwithstanding the provisions of ORS 12.160,” which is Oregon’s general tolling statute. That single word is why the five-year cap is so harsh: it cannot be extended for minors or for people with disabling mental conditions. Only fraud or concealment can push past it.

The Fraud and Concealment Exception

If a healthcare provider intentionally hides an error or misleads you about what happened, the five-year repose does not apply. Instead you have two years from the date you discover the fraud, deceit, or misleading conduct, or from the date you reasonably should have discovered it.¹

Proving fraud is a high bar. A provider who simply failed to mention a mistake has not necessarily committed fraud. You typically need to show affirmative steps to mislead or cover up.

Children and People With Mental Disabilities

Oregon’s general tolling statute pauses the clock for people who cannot be expected to protect their own legal rights. For a child under 18, the two-year period is tolled until the child turns 18. For someone with a disabling mental condition that prevents them from understanding their legal rights, the clock pauses as long as the condition persists.²

In both cases, the extension cannot exceed five years, or one year after the disability ends (the child turns 18, or the person regains capacity), whichever comes first.²

Here is the trap. These tolling protections do not override the five-year statute of repose for medical malpractice. The repose statute explicitly applies “notwithstanding” the tolling rules.¹ Tolling can extend the two-year discovery period, but it cannot push the filing date beyond five years from the treatment. A child injured at 14 might expect to have until age 19 to sue, but the five-year cap can expire first. Only the fraud exception opens more time.

Wrongful Death From Medical Negligence

When medical negligence causes a patient’s death, the claim moves to Oregon’s wrongful death statute. The personal representative of the deceased has three years from the date the injury causing death was discovered, or reasonably should have been discovered, to file suit.³

The wrongful death statute has its own outer limits. No action can be filed later than the earliest of three years after the patient’s death or the longest applicable statute of repose, which for medical malpractice is five years from the date of treatment.³ The family has three years from discovery, but cannot exceed either the three-years-after-death cap or the five-years-from-treatment cap, whichever runs out first.

Claims Against Government Healthcare Providers

State and Local Facilities

If the provider works for a state university hospital, a county health department, or another public body, there is an extra deadline before the two-year statute even matters. Under the Oregon Tort Claims Act, you must give the government entity written notice of your claim within 180 days of the date the injury was discovered or should have been discovered. For wrongful death claims, the notice period is one year.⁴

Missing the 180-day notice window can permanently bar the claim even if the two-year statute of limitations still has plenty of time left. If you were treated at a publicly operated facility, 180 days is your real first deadline.

Federal Facilities

A different set of rules governs claims against federal employees, such as doctors at Veterans Affairs hospitals or federally qualified health centers. These claims fall under the Federal Tort Claims Act. You must file an administrative claim with the responsible federal agency within two years of the date the claim accrues.⁵ You cannot go directly to court. If the agency denies the claim or fails to respond within six months, you then have six months from the denial to file suit in federal court.

The distinction between a state-run clinic and a federally funded one is not always visible from the waiting room. Community health centers that receive funding from the Health Resources and Services Administration exist in every state, and their employees may be covered by the FTCA rather than Oregon law. Confirm which regime applies before any deadline runs.

What Happens if You Miss a Deadline

Once either the two-year limitations period or the five-year repose expires, the defendant files a motion to dismiss, and Oregon courts grant these routinely. Judges have very little discretion to override the deadlines. The claim does not weaken. It ceases to exist as a legal matter, no matter how strong the underlying evidence is.

Because the two-year clock and the five-year clock run at the same time from different starting points, your effective deadline is whichever one expires first. For injuries discovered quickly, the two-year rule controls. For injuries that surface slowly, the five-year repose is usually what closes the door. Track both from day one.

1
Oregon State Legislature. Oregon Code 12.110 – Actions for Certain Injuries to Person Not Arising on Contract
2
Oregon State Legislature. Oregon Code 12.160 – Suspension for Minors and Persons Who Have Disabling Mental Condition
3
Oregon State Legislature. Oregon Code 30.020 – Action for Wrongful Death
4
Oregon State Legislature. Oregon Code 30.275 – Notice of Claim; Time of Notice; Time of Action
5
Office of the Law Revision Counsel. 28 USC 2401 – Time for Commencing Action Against United States