Maryland’s medical malpractice statute of limitations gives you five years from the date of the injury or three years from the date you discovered it, whichever runs out first. That dual deadline is set by Maryland Courts and Judicial Proceedings § 5-109, and the five-year outer limit can expire before you ever realize anything went wrong.1Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-109 You also have to file through a special administrative office before you can sue in court, which adds a procedural layer that uses up some of your available time.
Two Clocks Running at Once
The two prongs of § 5-109 run simultaneously, and the court applies whichever expires first. The five-year window acts as an absolute outer boundary. If a surgical error happened six years ago and you only learned about it last month, you are almost certainly barred from filing no matter when you discovered it.
A detail that trips people up: filing a claim with the Health Care Alternative Dispute Resolution Office counts as “filing an action” for purposes of the deadline.1Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-109 You do not need a circuit court complaint on file before the clock runs out. You need the HCADRO filing, which is where most Maryland malpractice timelines actually begin.
When the Discovery Clock Starts
The three-year clock does not necessarily start the moment harm occurs. It starts when you discover the injury or when a reasonable person in your position should have discovered it. You do not need proof of negligence. If you experience symptoms that would prompt a reasonable person to investigate or get a second opinion, the clock likely starts then.
This is where many claims fall apart. Patients who notice something is wrong but wait years to follow up often find the three-year window has already closed. A defense attorney will argue the signs were there and ordinary diligence would have uncovered the problem sooner. The standard is not what you personally knew but what a reasonable person should have known.
Deadlines When the Patient Is a Child
Maryland adjusts the deadlines for children, but not in the simple “wait until 18” way parents sometimes assume. If the child was under 11 when the injury occurred, the five-year and three-year deadlines do not begin running until the child turns 11.1Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-109 Under that rule, the latest a claim could be filed is the child’s 16th birthday.
Two categories of injuries get a longer extension. For injuries to a child’s reproductive system, or injuries caused by a foreign object negligently left inside the child’s body, the deadlines do not start running until the child turns 16 if the injury happened before that age.1Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-109 A claim under this provision could potentially be filed as late as the claimant’s 21st birthday. For most other childhood malpractice injuries, the deadline comes well before adulthood.
When the Deadline Pauses for Mental Incapacity
If a patient is mentally incompetent when the cause of action arises, Maryland pauses the filing deadline. Under § 5-201, that person must file within the shorter of three years after the disability is removed or the normal limitations period.2Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-201 Section 5-109 confirms that this tolling provision is not overridden by the medical malpractice deadlines.1Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-109
This protection applies only to mental incompetency. Being imprisoned or absent from Maryland does not extend the filing deadline.2Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-201
When the Provider Hid the Error
If a healthcare provider actively concealed evidence of negligence, the filing deadline does not start until you discover the deception or should have discovered it through ordinary diligence.3Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-203 This is separate from the general discovery rule. The discovery rule covers patients who simply did not realize they were harmed. The concealment exception covers providers who took deliberate steps to prevent patients from finding out.
Section 5-109 preserves this exception for malpractice claims, so a provider cannot use the five-year outer deadline as a shield when they hid their own error.1Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 5-109 Proving concealment requires more than a failure to volunteer information. You need evidence of affirmative acts of deception.
If the Patient Died
When medical negligence results in a patient’s death, surviving family members must file a wrongful death claim within three years of the date of death.4Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 3-904 That clock runs from the date of death, not from when the family discovered the medical error. It is independent of the discovery rule that applies to personal injury claims.
The HCADRO Filing and the 90-Day Expert Certificate
You cannot walk into a Maryland circuit court with a malpractice lawsuit. Every claim has to be filed first with the Health Care Alternative Dispute Resolution Office by submitting a claim to the office’s Director.5Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 3-2A-04 That filing is what stops the statute of limitations clock.
Within 90 days of the HCADRO filing, you have to submit a Certificate of Qualified Expert. The certificate is a written statement from a qualified medical professional confirming that the provider departed from the accepted standard of care and that the departure caused your injury.5Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 3-2A-04 Miss the 90-day deadline and your claim will be dismissed without prejudice. In theory you can refile; in practice, by the time the dismissal happens, the statute of limitations has often closed for good.
Waiving Arbitration and Filing in Court
Once the expert certificate is on file, either side can elect to skip HCADRO arbitration and move the case to circuit court or federal district court.6Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 3-2A-06B The waiver must be filed in writing with the Director no later than 60 days after all defendants have filed their own expert certificates. Once any party files the waiver, it binds everyone.
After the waiver is filed, the plaintiff has 60 days to file a complaint in the appropriate court. Missing that 60-day window can lead to dismissal.6Maryland General Assembly. Maryland Code Courts and Judicial Proceedings 3-2A-06B Most Maryland malpractice cases reach circuit court through this waiver process rather than running through full HCADRO arbitration.
Injuries at a VA or Federal Facility
If your injury happened at a VA hospital, military treatment facility, federal prison medical unit, or Indian Health Service facility, Maryland’s state deadlines do not apply. Federal malpractice claims fall under the Federal Tort Claims Act, which has its own timeline.
You have to submit a written administrative claim, typically on Standard Form 95, to the specific federal agency responsible for the facility within two years of the date the claim accrues.7Office of the Law Revision Counsel. 28 USC 2401 – Time for Commencing Action Against United States The form has to include a specific dollar amount for the damages you are claiming. A submission without a definite dollar figure is not treated as a valid claim.8Department of Justice. Documents and Forms
After you file the administrative claim, the agency has six months to respond. If the agency denies the claim, you have only six months from the date of that denial to file a lawsuit in federal court.7Office of the Law Revision Counsel. 28 USC 2401 – Time for Commencing Action Against United States That second six-month deadline is the one that catches people. After a two-year administrative process, the final litigation window is surprisingly short.