In Colorado, if you file a medical malpractice lawsuit that requires expert testimony to prove, your attorney generally has to file a document called a certificate of review within 60 days of serving the complaint. That deadline comes from C.R.S. 13-20-602. The certificate is not evidence and it is not the expert's report. It is a short, signed statement from your attorney confirming that a qualified expert has reviewed the known facts and believes the claim has substance. If nobody files it and no extension is granted, the statute says the court shall dismiss the claim. That is why this one procedural step ends more Colorado malpractice cases than most people would expect.
What a Colorado certificate of review actually is
A certificate of review is a filter. The Colorado legislature created it to stop professional negligence claims that have no expert support behind them, because those cases are expensive for everyone and hard on licensed professionals who did nothing wrong.
Under C.R.S. 13-20-602, the certificate is signed by the plaintiff's attorney, not by the expert. In it, the attorney declares three things:
- The attorney consulted a person who has expertise in the area of the alleged negligent conduct.
- That expert reviewed the known facts, including any relevant records, documents, and other materials the expert considered necessary.
- Based on that review, the expert concluded the filing of the claim does not lack substantial justification.
Notice what is missing. The certificate does not name the expert. It does not disclose the expert's opinions. It does not attach a report. A plaintiff's lawyer is not handing the defense a roadmap at the 60-day mark. The certificate simply tells the court that a qualified person looked at the case before the lawsuit was filed.
There is one extra wrinkle when the defendant is a licensed physician. In that situation, the statute requires that the consulted expert be a licensed physician who meets the standards for expert testimony in medical malpractice actions, and who practices or has knowledge of the standard of care in the same area of expertise as the defendant. A general practitioner's review will not satisfy the requirement if the defendant is, for example, a neurosurgeon.
How the 60-day deadline works
The clock in C.R.S. 13-20-602 runs from service of the complaint on each defendant, and it is a per-defendant obligation. If a case names a surgeon, an anesthesiologist, and a hospital, the certificate requirement applies to each of those defendants who is entitled to one.
The statute allows the court to extend the 60 days for good cause. Courts can and do grant extensions, often when records have not arrived yet or when a specialist review is still underway. But an extension is a request, not a right, and the safe assumption is that the deadline is real.
A few timing points worth separating out, because people mix them up constantly:
- The certificate deadline is not the statute of limitations. The 60 days is a post-filing procedural step. The statute of limitations is the separate, earlier deadline for getting the lawsuit filed in the first place.
- Adding a new defendant can restart the obligation. If an amended complaint brings in a professional who was not previously named, a certificate may be required for that defendant.
- Dismissal for a missing certificate can be fatal in practice. Even where a dismissal is technically without prejudice, by the time it happens the limitations period has often run, leaving nothing to refile.
Which claims require a certificate of review
The requirement is not limited to doctors, and it is not triggered by every claim against a professional. The test in the statute is whether the claim requires expert testimony to establish a prima facie case.
That means the requirement commonly reaches claims against:
- Physicians, surgeons, and specialists
- Nurses and nurse practitioners
- Dentists, chiropractors, and other licensed health care providers
- Hospitals and clinics, when the claim is about the professional standard of care
- Non-medical licensed professionals, including attorneys, engineers, and accountants
What usually falls outside the requirement is the narrow set of cases where negligence is obvious to an ordinary person without expert help. Courts sometimes describe this as the common knowledge exception. A surgical instrument left inside a patient, or an operation performed on the wrong limb, is the classic illustration. No expert is needed to explain why that fell below the standard of care.
The exception is narrower than it sounds. Most medical cases that feel obvious to a patient still require an expert, because proving causation (that the error caused this specific harm) almost always requires medical testimony even when the error itself seems clear. Someone deciding that a case fits the common knowledge exception is making a legal judgment with a dismissal attached to the wrong answer.
Why the certificate of review matters so much in Colorado medical malpractice cases
The certificate requirement shapes the entire front end of a Colorado medical malpractice case, and it explains something that frustrates a lot of injured patients: the delay before anything visible happens.
Before a complaint is filed, the legwork usually looks like this:
- Requesting and collecting complete medical records from every provider involved, which can take weeks or months
- Organizing those records into a reviewable chronology
- Finding a qualified expert in the correct specialty who is willing to review the file
- Paying that expert for the review
- Waiting for the expert's conclusion before the case can responsibly be filed
That sequence is why a strong malpractice case can look like it is sitting still. The work is happening upstream. It is also why these cases carry real cost before a lawsuit even exists, and why attorneys screen them carefully. A lawyer who cannot find expert support cannot sign the certificate, and signing it without a genuine expert review exposes that lawyer to sanctions.
It is worth knowing the broader context too. Colorado caps total damages in most medical malpractice actions at roughly $1,000,000 under the Health Care Availability Act. The certificate of review is one of several structural rules that make malpractice litigation its own specialized area rather than ordinary personal injury work.
What this means if you think you were harmed by medical care
The practical takeaway is about time, not paperwork. The certificate of review is your attorney's job, not yours. But the amount of work that has to happen before the certificate can be signed is the reason malpractice claims need to be looked at early.
Things that help an early review:
- Writing down the sequence of events while the details are fresh, including dates, provider names, and what was said
- Keeping discharge paperwork, test results, billing statements, and your patient portal messages
- Requesting your own complete medical records, since you have a right to them
- Noting any follow-up treatment or corrective procedures you needed
What does not help is waiting to see whether things improve on their own. Records take time to gather, specialists take time to review, and the filing deadline does not pause for any of it.
The bottom line
A Colorado certificate of review is a short attorney declaration, required by C.R.S. 13-20-602 within 60 days of serving the complaint, confirming that a qualified expert reviewed the known facts and found the claim substantially justified. It applies to professional negligence claims that need expert testimony, which includes most medical malpractice cases. Courts can extend the deadline for good cause, but the statute directs dismissal when no certificate is filed. The real-world effect is that the expert review has to happen before the lawsuit, which is why these cases take time to build and why getting them evaluated early matters more than in a typical injury claim.
This article is general information about Colorado law and is not legal advice. Laws change and every case is different. Talk to a licensed attorney about your situation.