Medical Malpractice Statute of Limitations Exceptions

Under the Prescription Act 68 of 1969, a medical malpractice claim in South Africa prescribes three years from the date the debt became due — and for these claims, the debt becomes due when the patient became aware, or reasonably should have become aware, of the harm, its cause, and the identity of the responsible party. Three statutory protections can pause, restart, or sideline that deadline: section 13 protects minors, persons under curatorship, and creditors prevented by superior force; sections 14 and 15 treat a written acknowledgement of liability by the healthcare provider or the service of a summons as interruption of prescription; and section 17 makes prescription a defence the defendant must raise in pleadings, not an automatic bar. The combined framework turns the practical question from “when did the procedure happen” into “when did the harm become reasonably knowable, and what has happened since.”

The Prescription Period That Usually Applies to a Medical Malpractice Claim

Section 11(d) of the Prescription Act 68 of 1969 sets a general three-year prescription period for any debt not covered by a more specific provision. Medical malpractice claims are claims for damages arising from the wrongful conduct (a delict) of a healthcare provider, and they fall under this catch-all. Once the prescription period is complete, the debtor (the healthcare provider or its insurer) may raise it as a defence, and the creditor (the patient) can no longer enforce the claim.

Prescription is a defence, not an automatic bar. If the defendant does not raise prescription in pleadings, the claim can proceed even after the prescriptive period has technically expired. Section 17 of the Act makes this explicit: a court will not take notice of prescription on its own motion, and a party who wishes to rely on it must plead it in the relevant document filed of record. The practical risk is real — a defendant may be permitted to raise the plea later in proceedings if the plaintiff’s case permits — but the framework is “raise it or lose it,” not “it applies by default.”

When the Clock Starts Running — the Date of Awareness Rule

Prescription begins on the date the debt becomes due. Section 12 of the Act sets the test: a debt is not deemed to be due until the creditor has knowledge of the identity of the debtor and of the facts from which the debt arises, on the basis that a creditor is deemed to have such knowledge if it could have been acquired by exercising reasonable care.

For a medical malpractice claim, applying that test means the three-year period generally starts on the date the patient became aware, or reasonably should have become aware, of three things: the harm suffered, the wrongful conduct that caused it, and the identity of the responsible party. The “ought reasonably to have become aware” element is an objective test — what a reasonable patient in similar circumstances would have known, not what this particular patient subjectively believed. Section 12(2) reinforces the point by suspending the start of prescription where the debtor wilfully prevents the creditor from coming to know of the existence of the debt.

Where the negligent act and the resulting harm are separated in time — a missed diagnosis that only causes harm years later, an inadequately explained complication that surfaces after a long latent period — prescription does not start at the date of the procedure. It starts at the date the harm became reasonably knowable. Confirmed in this respect by the Eastern Cape High Court in Diko v MEC for Health (583/2018) [2022] ZAECBHC 11, the date-of-awareness rule is the most common point on which medical malpractice prescription disputes turn.

Exception 1 — Persons Under Disability (Section 13)

Section 13(1) of the Prescription Act lists circumstances that delay the completion of prescription where the creditor:

• Is a minor — prescription does not run against a person under 18. The three-year clock only starts once the minor turns 18, giving them until their 21st birthday to institute the claim.
• Is insane or under curatorship — prescription is delayed while the creditor lacks legal capacity. Where a curator has not yet been appointed, the impediment persists until the appointment is made.
• Is prevented by superior force (vis major) — including any law or any order of court that prevents the creditor from interrupting prescription through legal process.

Section 13(1) also covers a wider set of circumstances — debtors outside the Republic, married couples, partners, members of the governing body of a juristic person debtor, debts subject to arbitration, and debts forming the subject of a claim against a deceased or insolvent estate — but only the disability-based ones regularly arise in medical malpractice contexts.

Section 13(1) has a built-in safety net: even after the impediment ends, the period of prescription cannot be completed before a year has elapsed after that day. So a creditor who attains majority, has a curator appointed, or is released from superior force always has at least one further year to act, on top of the three-year period that then begins to run afresh. Because the disability provisions are technical and easily misapplied (for example, by treating curatorship as continuous once it ends), claimants in this category benefit from a review of the dates by an attorney before assuming they are within time.

Exception 2 — Interruption of Prescription (Sections 14 and 15)

Two events restart the prescription clock: an acknowledgement of liability by the debtor, or the service of legal process claiming payment of the debt.

Mechanism	Statutory hook	What interrupts prescription	Resulting effect
Acknowledgement of liability	Section 14	An express or tacit acknowledgement of liability by the debtor	Prescription commences to run afresh from the date of the acknowledgement
Judicial interruption (summons)	Section 15	Service on the debtor of any process by which the creditor claims payment of the debt — including a summons, petition, notice of motion, rule nisi, pleading in reconvention, or third-party notice	Prescription commences to run afresh from the date the judgment becomes executable, or from the date of acknowledgement if the creditor does not prosecute to final judgment

A summons that is issued but not properly served within the prescriptive period does not interrupt prescription under section 15 — service matters. If the creditor issues process but does not prosecute the claim to final judgment, the interruption lapses and prescription is treated as not having been interrupted, unless the debtor acknowledges liability in the meantime. For plaintiffs, the practical takeaways are: serve the summons within the prescriptive period, keep proof of service, and treat any written communication from the provider or its insurer as a potential acknowledgement that may strengthen the claim.

Exception 3 — Prescription Must Be Raised in Pleadings (Section 17)

Section 17 of the Prescription Act is a procedural safeguard for plaintiffs: a court will not take notice of prescription on its own motion; the defendant must raise it. The party wishing to rely on prescription must do so in the relevant document filed of record, although a court may allow the plea to be raised at any later stage of the proceedings if the justice of the case requires it.

The practical effect is that a plaintiff who reaches the eve of the three-year deadline without the defendant having raised prescription has not automatically lost the claim — the defendant still has to plead it. But the rule is not a free pass. A defendant may be permitted to raise prescription late, and the longer the plaintiff leaves it, the more room the defendant has to argue that the new plea should be permitted. The safest course is to act within time rather than rely on the defendant’s silence. Burger Huyser Attorneys’ Litigation Department, run under Director Nadine Roesch-Prinsloo’s general litigation practice, regularly reviews prescription positions on civil claims of this kind before any decision to proceed is taken.

How the Exceptions Apply to a Medical Malpractice Scenario

• Delayed diagnosis: prescription typically starts from the date the patient becomes aware of the missed diagnosis and its consequences, not from the date of the original consultation.
• Child plaintiff: prescription is paused until the child turns 18; the three-year clock then runs from that birthday, with a one-year safety net built in by section 13(1)(i).
• Acknowledgement by the provider: a written acknowledgement of liability by the healthcare provider, or in some cases by its insurer, restarts the three-year period under section 14.
• Summons issued within time: service of a summons on the provider within the prescriptive period interrupts prescription under section 15; a summons issued but not served on time does not.

Each exception has its own statutory requirements. Failing to meet any one — issuing but failing to serve a summons, missing the date-of-awareness test, or assuming that section 13 applies without proof of the disability at the relevant date — means the exception does not apply. Because the date-of-awareness test is fact-sensitive and often contested, the safest course for a prospective plaintiff is to consult an attorney promptly rather than to self-assess the deadline.

What the Plaintiff Must Show to Rely on an Exception

Once the defendant has raised prescription, the burden shifts to the plaintiff to show that an exception applies. The evidence required is specific:

• Section 13 (disability): proof of age or curatorship at the relevant dates, including when the disability ended.
• Section 14 (acknowledgement): proof of an express or tacit acknowledgement of liability by or on behalf of the debtor, dated and identifiable.
• Section 15 (judicial interruption): proof that a summons was issued and properly served on the debtor within the prescriptive period, and (where relevant) that the creditor successfully prosecuted the claim to final judgment.
• Section 12 (date of awareness): evidence of when the harm, its cause, and the debtor’s identity became reasonably knowable, applying the objective reasonable-care test.

Silence or vagueness on this point usually loses. The statutory framework is technical, and the better the documentary record (medical records, correspondence, dates of acknowledgement, summons and proof of service), the stronger the plaintiff’s position. As a practical matter, instructing an attorney early allows the file to be constructed with the evidentiary discipline that a future prescription defence will demand.

Frequently Asked Questions

What is the statute of limitations for medical malpractice in South Africa?

Medical malpractice claims prescribe three years from the date the debt became due, under section 11(d) of the Prescription Act 68 of 1969. For these claims, the debt becomes due when the patient becomes aware, or reasonably should have become aware, of the harm and its cause.

Does the prescriptive clock start at the date of the medical procedure?

Not usually. For medical malpractice claims, the three-year prescriptive period starts on the date of awareness of the harm and its cause, not on the date of the negligent act. Where the harm takes years to manifest, the clock can begin well after the procedure itself.

Can a child bring a medical malpractice claim after turning 18?

Yes. Under section 13(1)(a) of the Prescription Act, prescription does not run against a minor. The three-year period only starts once the child turns 18, giving them until their 21st birthday to institute the claim, with a one-year safety net under section 13(1)(i).

What if the hospital or its insurer acknowledges the harm in writing?

A written acknowledgement of liability by the healthcare provider (or, in some cases, its insurer) interrupts prescription under section 14 of the Prescription Act. After acknowledgement, a fresh three-year prescriptive period starts running from the date of the acknowledgement.

Can the prescription period be extended?

The Act provides limited protections rather than a general extension. Section 13 delays completion while the creditor is a minor, under curatorship, or prevented by superior force, and always leaves at least one year after the impediment ends. Sections 14 and 15 restart the period on acknowledgement or service of summons. There is no general statutory power in the Prescription Act to extend the period beyond these mechanisms.

Does prescription apply automatically?

No. Under section 17 of the Prescription Act, prescription is a defence, not an automatic bar. The healthcare provider (or its insurer) must raise it in pleadings. If it is not raised, the claim can proceed even after the prescriptive period has technically expired — but a court may allow the plea to be raised later in the proceedings, so the practical risk of leaving it that long is real.

How long do I have to bring a medical malpractice claim if I only just discovered the harm?

The general answer is three years from the date you became aware (or reasonably should have become aware) of the harm and its cause, under section 11(d) read with section 12 of the Prescription Act. Section 13 protections may add further time if you were a minor or under curatorship at the relevant dates, but the safest course is to consult an attorney as soon as possible rather than rely on the date-of-awareness test on your own — the test has case-law nuances that affect outcomes.

If you are considering a medical malpractice claim and need to understand whether your matter is still within time — or whether a section 12, 13, 14, or 15 protection applies — Burger Huyser Attorneys’ Litigation Department can review the dates and advise on the route forward. The firm practises from its head office at 49 First Avenue, Linden, Randburg (011 888 0246), with branches across Gauteng; you can also reach the Litigation team through the Sandton, Roodepoort, Bedfordview, Alberton, Centurion, Pretoria, or Midrand branches. Initial consultations cover the prescriptive position and any available protections before any decision to proceed is made.