Hospital negligence in Pennsylvania: the certificate of merit

What it is and why it matters

If you sue a Pennsylvania hospital for medical malpractice, you almost always must file a Certificate of Merit (COM). A COM confirms a qualified medical professional supports your claim.

Without a timely COM, the court can dismiss your case—even if your injuries are serious. Knowing the rule early protects your rights.

  • Applies to hospital, doctor, nurse, and corporate negligence claims.
  • Usually due within 60 days after you file your complaint.
  1. File your complaint in court.
  2. Within 60 days, file a COM for each defendant.

Do you need a COM for your hospital claim?

When the rule applies—and when it doesn’t

A COM is required for professional negligence claims tied to medical judgment, treatment, staffing, policies, or supervision.

You may not need a COM for non-medical claims like a visitor slip-and-fall or a standalone federal EMTALA screening/stabilization claim.

  • Required: medication errors, failure to monitor, pressure injuries, infections from poor protocols, negligent discharge or staffing.
  • Not required: parking lot or lobby falls, broken chair injuries, billing disputes, standalone EMTALA claims.
  1. List each legal theory with your lawyer to see which ones need a COM.
  2. Plan expert involvement early for claims that do require one.

How Pennsylvania’s COM rule works

Key deadlines and contents under Pa.R.C.P. 1042.3

You must file a separate COM for every defendant hospital, doctor, or practice you sue.

The COM states that an appropriately licensed professional has given a written opinion that there is a reasonable probability of negligence that caused harm. It can also state the claim is based on vicarious liability or that expert testimony is unnecessary.

Courts can grant a 60-day extension for good cause if requested before the deadline. Missing the deadline can lead to a judgment of non pros (dismissal).

Federal courts in Pennsylvania also enforce the COM requirement on PA medical malpractice claims.

  • 60 days after filing the complaint to submit the COM; ask early for an extension if needed.
  • Use the right expert specialty for the issue (e.g., nursing administration for staffing claims).
  • Keep the expert’s written statement in your file; you don’t file it with the COM.
  1. Identify all defendants and theories (direct and vicarious).
  2. Secure a qualified expert’s written opinion supporting negligence and causation.
  3. File a separate COM for each defendant within 60 days or obtain a court-approved extension.

Step-by-step: protect your hospital negligence claim now

Practical actions after an injury in a PA hospital

Quick action helps you meet the COM deadline and the two-year statute of limitations (minors generally until age 20).

An attorney can coordinate record requests and expert review early.

  • Keep a symptom and appointment journal.
  • Save insurance EOBs, bills, and out-of-pocket costs.
  1. Write a timeline of events, names, and dates.
  2. Request complete medical records and any incident reports.
  3. Consult a Pennsylvania medical malpractice attorney promptly.
  4. Preserve evidence: photos, devices, medication packaging.
  5. Track deadlines: 2 years to sue (longer for minors), 60 days for the COM after filing.

Common pitfalls that sink PA hospital cases

Simple mistakes with serious consequences

Many cases are dismissed for avoidable COM errors. A careful checklist can save your claim.

  • Missing the 60-day COM deadline or failing to request an extension in time.
  • Filing one COM when multiple defendants are named.
  • Using the wrong expert specialty for the issue.
  • Assuming a visitor slip-and-fall needs a COM.
  • Serving the complaint but forgetting to file the COM with the court.
  1. Double-check that each defendant has its own COM.
  2. Calendar all deadlines and set multiple reminders.

Make expert review and the COM faster

Arrive prepared so your lawyer can get an expert on board quickly and meet Pennsylvania’s COM requirements.

  • Photo ID and contact information.
  • Complete medical records, discharge papers, and medication lists.
  • Hospital incident reports and patient portal downloads.
  • Names of all providers and departments involved.
  • Health insurance cards, EOBs, bills, and receipts.
  • List of prior conditions and treating providers.
  1. Summarize your goals and top concerns.
  2. Note upcoming appointments, work limits, and caregiving needs.