Can You Sue A Hospital For Misdiagnosis?

Written by Jay M. Kelley III in Medical Malpractice on July 6, 2026

Key Takeaways

• Hospitals may be liable for misdiagnosis when a provider’s negligence causes delayed treatment and preventable patient harm.
• A misdiagnosis occurs when a doctor gives the wrong diagnosis, misses the problem, or delays treatment.
• Diagnostic errors affect millions of patients each year, with studies suggesting that about 1 in 20 adults experiences one each year.
• Commonly misdiagnosed conditions include heart attacks, strokes, infections, cancer, and pulmonary embolisms that require timely evaluation.
• Medical malpractice claims require proof of duty of care, breach of standards, causation, and measurable patient damages.

A visit to the emergency room or a doctor’s office in Cleveland, Ohio, is meant to provide answers and relief. Unfortunately, some patients leave without an accurate diagnosis, allowing a serious condition to progress. Medical mistakes involving missed or incorrect diagnoses can have significant consequences for individuals and their families. In these situations, many people ask if you can sue a hospital for misdiagnosis when a medical provider fails to recognize a dangerous condition in time. Yes, a hospital may be legally responsible when a diagnostic mistake resulting from negligence leads to preventable harm. When a diagnostic error causes avoidable injuries, legal action may be available to pursue accountability and financial recovery.

At Elk + Elk, we work with families across Ohio to help them understand what may have gone wrong and the legal options available after a serious medical mistake.

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What is a misdiagnosis?

A misdiagnosis happens when a healthcare provider identifies a patient’s condition incorrectly. A failure to diagnose occurs when a condition is missed entirely or recognized too late for effective treatment. Both types of diagnostic errors can prevent patients from receiving timely care and may lead to serious harm.

Medical professionals are expected to follow established standards of care. These standards include carefully reviewing symptoms, ordering appropriate testing, and considering possible conditions before reaching a conclusion. When those steps are not followed, a diagnostic error can occur. In many hospital settings, this may involve rushed evaluations, incomplete patient histories, or overlooked conditions that require further testing.

Several situations can lead to a misdiagnosis in a hospital setting. Physicians may overlook critical symptoms, misinterpret lab results, or fail to order necessary imaging studies. Communication breakdowns between departments can also contribute to missed diagnoses in busy emergency departments.

The consequences can be severe. Conditions such as strokes, heart attacks, infections, or cancer often require immediate treatment. When diagnosis is delayed or incorrect, the patient may lose valuable time that could have improved the outcome.

How often does misdiagnosis happen?

Diagnostic errors are more common than many people realize. Medical systems handle enormous numbers of patients each year, and even small breakdowns in the diagnostic process can lead to significant harm.

Research on diagnostic errors indicates that they affect millions of patients in the United States each year. Studies suggest that roughly 1 in 20 adults may experience a diagnostic error each year in outpatient settings alone.

Hospitals, doctors, nurses, and other healthcare staff must often make quick decisions while caring for many patients at the same time. Conditions like strokes, internal bleeding, and infections can have subtle warning signs that may look like less serious problems.

Despite these challenges, hospitals remain responsible for providing careful and competent medical care. Patients rely on physicians and hospital systems to recognize warning signs and respond when symptoms suggest a serious condition. When a provider overlooks warning signs or fails to properly investigate symptoms, a diagnostic mistake can cross the line into medical malpractice.

Common types of medical misdiagnosis

Certain medical conditions are more frequently misdiagnosed in hospitals, including those in Cleveland, because their symptoms resemble other illnesses or develop gradually. In hospital settings, delayed recognition of these conditions can lead to serious complications.

Common diagnostic errors may involve:

• Heart Attack: Chest discomfort, fatigue, or nausea may be mistaken for less serious conditions such as acid reflux or anxiety, particularly in women whose symptoms often appear differently than the classic presentation.
• Stroke: Early stroke symptoms may include dizziness, confusion, or weakness on one side of the body. When providers fail to recognize these signs promptly, patients can miss out on time-sensitive treatment.
• Infections or Sepsis: Severe infections can initially resemble flu symptoms. Delayed recognition allows the infection to spread rapidly through the body.
• Cancer: Some cancers develop gradually and produce symptoms that resemble common illnesses. Missing early warning signs may delay lifesaving treatment.
• Pulmonary Embolism: Blood clots in the lungs may cause shortness of breath or chest pain that can resemble pneumonia or anxiety-related symptoms.

Each of these conditions requires prompt testing and careful evaluation. When symptoms are dismissed or mistaken for minor illnesses, the window for effective treatment can narrow quickly. When medical providers fail to pursue the appropriate diagnostic steps, the consequences can be life-changing.

How to find liability in a medical malpractice

Not every incorrect diagnosis automatically qualifies as malpractice. Medicine is complex, and some conditions can be difficult to identify even with proper care. A legal claim usually requires proof that a medical provider failed to follow accepted medical standards.

Several factors are typically evaluated when determining liability in a diagnostic error case in Cleveland and elsewhere in Ohio.

• Duty of Care: Hospitals and physicians owe patients a professional duty to provide competent medical treatment.
• Breach of the Standard of Care: The provider failed to act as a reasonably careful medical professional would under similar circumstances.
• Causation: The diagnostic mistake directly caused additional injury, complications, or loss that could have been avoided with proper care.
• Damages: The patient suffered measurable harm, including additional medical treatment, long-term disability, lost income, and significant pain and suffering.

Medical malpractice cases usually require a detailed investigation. Attorneys frequently review hospital records, consult medical specialists, and analyze diagnostic timelines to determine whether earlier intervention could have prevented the harm.

Hospitals may also share responsibility when systemic issues contribute to the mistake. Understaffing, communication failures, poor supervision, or inadequate training can create conditions where critical diagnostic information is missed.

Filing a medical malpractice lawsuit against a hospital

When a misdiagnosis leads to serious injury, a medical malpractice claim may allow the patient to pursue compensation for resulting losses.

In Ohio, strict deadlines apply under Ohio Revised Code Section 2305.113, Medical Malpractice Statute of Limitations. Most claims must be filed within one year from the date the patient discovers, or reasonably should have discovered, the injury.

Building a claim involves several steps. Attorneys may obtain medical records, consult independent physicians, and review whether hospital staff followed accepted diagnostic procedures. This helps determine whether the misdiagnosis resulted from negligence rather than an unavoidable outcome.

Hospitals and healthcare systems often defend these claims aggressively, relying on legal teams and medical experts to argue the diagnosis was reasonable. A detailed investigation is often needed to show how earlier recognition of symptoms could have changed the outcome.

Medical malpractice claims may seek compensation for damages such as medical care, rehabilitation costs, lost earning ability, and the emotional impact on a family. In severe cases, patients may require lifelong treatment or assistive care, which can create financial strain.

Call Cleveland medical malpractice lawyers today

A misdiagnosis can leave patients and families searching for answers. Determining whether a hospital or healthcare provider acted negligently often requires an extensive investigation and a careful review of medical records.

At Elk + Elk, our team works with medical professionals to evaluate complex malpractice claims and uncover what may have gone wrong. We offer a free case review to help families understand their legal options and whether a medical malpractice claim may be available. To speak with our team, call 1 (800) 355-6446 or fill out our online form to learn more about how we can help.

Jay M. Kelley III - Managing Partner

Meet Jay M. Kelley III, a top medical malpractice and catastrophic personal injury attorney in Ohio with over 30 years of experience and a proven track record of securing millions in verdicts and settlements. He leads Elk + Elk’s comprehensive litigation strategy across state, federal, and appellate courts, drawing on a unique background as a former felony prosecutor and hospital defense lawyer. Jay focuses on high-stakes, complex cases, including birth injuries and wrongful death, and is widely recognized by Best Lawyers and ranked among the Super Lawyers Top 10 in Ohio.

Free case consultation call us 1 (800) 355-6446