Misdiagnosis and delayed diagnosis · St. Louis

Misdiagnosis and delayed diagnosis in Missouri: when a missed condition is malpractice

A misdiagnosis or delayed diagnosis can be malpractice in Missouri when a careful provider in the same field would have found the condition sooner, and the delay made your outcome worse. A wrong first guess is not enough. The delay itself has to have caused harm.

Why diagnosis is hard, and when it falls short

Many illnesses look alike at first. Chest pain can be heartburn or a heart attack. A headache can be stress or a bleed in the brain. Doctors work through a list of possible causes and rule them out one by one. Getting it wrong at first does not mean the doctor was careless.

A diagnosis falls below the standard of care when a careful provider, with the same facts, would have done more. That might mean:

  • Ordering a test that your symptoms clearly called for.
  • Reading a scan or lab result the right way.
  • Following up on an abnormal result instead of letting it sit.
  • Sending you to another doctor when the problem was outside their field.
  • Listening to what you said about your symptoms and history.

The key question: did the delay change the outcome?

This is where most misdiagnosis cases are won or lost. Missouri law requires that the lapse directly caused, or helped cause, your harm (RSMo 538.210).

So the question is not only “was it missed?” It is “what would have been different if it had been found on time?” An illness caught earlier may have needed a smaller surgery. It may have been treated before it spread. Or it may have ended the same way no matter when it was found.

WHAT A REVIEW LOOKS AT

  • What your symptoms and history were at each visit.
  • What tests were ordered, and what the results showed.
  • When the right diagnosis was finally made.
  • How the illness grew or changed during the delay.
  • What treatment options were lost because of the delay.

Common kinds of missed and late diagnoses

Each case is different, but reviews often involve situations like these:

  • Emergency room visits. A patient is sent home, then returns sicker a day or two later.
  • Cancer. A lump, a scan finding or a lab value is noted but never followed up.
  • Stroke and heart attack. Warning signs are treated as something minor.
  • Infections. Signs of a serious infection are missed until it spreads.
  • Lost test results. A result comes back abnormal, and no one tells the patient.

These are general examples, not a list of anyone’s case.

A special deadline rule for test results you were never told about

The usual Missouri deadline is two years from the date of the care (RSMo 516.105). But the law has a special rule when a provider fails to tell you the results of a medical test.

In that case, the two years run from when you found out, or when you reasonably should have found out, that you were not told. There is still an outer limit. Most malpractice claims cannot be filed more than ten years after the act, even if no one knew. Other rules apply to children.

The details matter, so read the deadlines and caps guide and treat the earliest date as your deadline.

What to do now

  1. Get the care you need now. Your health comes first.
  2. Ask each provider for your records, including test results and imaging reports.
  3. Write a timeline. List every visit, what you said, what you were told and what tests were done.
  4. Keep any patient portal messages, discharge papers and after-visit summaries.
  5. Keep your bills, and note time missed from work.
  6. Do not sign a release or agreement from a provider or insurer without advice.

Your first consultation about a possible malpractice case is free. Harjot Singh Padda, JD can look at your timeline and explain whether a review makes sense.

Common questions

My doctor got it wrong at first. Is that malpractice?

Not by itself. The question is whether a careful doctor would have found it sooner, and whether that would have changed the outcome. See the malpractice overview.

I was never told about an abnormal test. When does my deadline start?

A special rule starts the two years when you knew or should have known. Read the deadlines guide.

Can I bring a claim if the illness would have been fatal anyway?

It depends on what earlier care could have changed. A family may also have a wrongful death claim. See wrongful death claims.

Does a missed brain bleed or stroke count?

It can, if a careful provider would have caught it and the delay caused harm. See brain injury claims.

What should I bring to a first meeting?

Your timeline, records you already have, and a list of providers. See what to bring.

Related reading

Sources

  • Mo. Rev. Stat. § 538.210 (the malpractice claim and its elements; noneconomic damage limits; punitive damages). Missouri Revisor of Statutes
  • Mo. Rev. Stat. § 516.105 (two-year limit for claims against health care providers; foreign objects, test results, minors, ten-year outer limit). Missouri Revisor of Statutes
  • Mo. Rev. Stat. § 538.225 (health care provider affidavit; 90-day filing rule). Missouri Revisor of Statutes