A missed diagnosis may lead to a medical malpractice claim when a healthcare provider fails to use the level of care expected under the circumstances and that failure causes the patient additional harm.
The fact that a condition was overlooked does not, by itself, establish negligence. Diagnostic decisions frequently involve symptoms that could indicate several conditions.
A doctor may reach a reasonable conclusion based on the information available at the time, even if a different diagnosis is made later.
A viable claim generally requires evidence showing what a reasonably careful provider should have done and how the diagnostic failure changed the patient’s outcome.
What Is a Missed Diagnosis?
A missed diagnosis occurs when a medical condition is not identified during the relevant period of care.
The patient may be told that no medical problem is present, receive treatment only for the symptoms, or leave without an explanation for the condition.
A missed diagnosis differs slightly from two related situations:
- A misdiagnosis occurs when the provider identifies the wrong condition.
- A delayed diagnosis occurs when the correct condition is eventually identified but later than it reasonably should have been.
- A missed diagnosis means the condition was not identified by the provider involved in the earlier care.
These terms may overlap in a medical malpractice case.
The central legal questions are whether the care was appropriate based on the available information and whether the diagnostic failure caused further injury.
Does Every Missed Diagnosis Constitute Medical Malpractice?
A missed diagnosis is not automatically medical malpractice.
Medicine does not require a provider to reach the correct conclusion in every case, and some conditions are difficult to identify during their early stages.
A poor outcome may occur even when a doctor takes an appropriate history, performs a reasonable examination, considers the symptoms, orders suitable tests, and reaches a medically supportable conclusion.
The issue becomes more significant when evidence indicates that a provider failed to take a step that a reasonably careful provider would have taken under similar circumstances.
Even then, the patient must ordinarily establish that the failure caused harm beyond the effects of the underlying medical condition.
What Must a Patient Establish?
A missed-diagnosis claim generally requires proof of four connected elements:
A Professional Duty Existed
The provider must have agreed to evaluate or treat the patient, creating a professional duty of care.
The Provider Departed From the Standard of Care
The evidence must show that the diagnostic process fell outside accepted medical practice based on the symptoms, history, test results, and other available information.
A different opinion or an incorrect diagnosis alone does not establish negligence. Qualified medical expert testimony is generally required.
The Diagnostic Failure Caused Additional Harm
The patient must connect the departure from the standard of care to a worsened condition or another identifiable injury.
If an earlier diagnosis probably would not have changed the outcome, establishing causation may be difficult.
The Patient Sustained Damages
The missed diagnosis must have caused actual losses, which may include additional treatment, lost income, pain and suffering, or disability.
A diagnostic error that causes no additional injury may not support a medical malpractice claim.
How Can the Diagnostic Process Fall Below the Standard of Care?
A diagnosis is usually the result of several clinical decisions rather than a single moment. A potential claim may therefore involve more than a doctor naming the wrong condition.
The investigation may examine whether a provider:
- Took an adequate medical and family history
- Considered symptoms that required further investigation
- Performed an appropriate physical examination
- Included serious conditions in the differential diagnosis
- Ordered tests indicated by the clinical findings
- Correctly interpreted laboratory or imaging results
- Responded appropriately to abnormal findings
- Communicated important results to the patient
- Recommended follow-up when symptoms continued
- Referred the patient to an appropriate specialist
The presence of one of these issues does not automatically prove malpractice.
Medical records and expert analysis are usually needed to determine what the circumstances required.
Can a Test Error Support a Claim?
Diagnostic testing can play an important role, but an unfavorable test outcome does not always mean negligence occurred. Tests have limitations, and a condition may not yet be detectable.
A potential claim may warrant closer examination when:
- A medically indicated test was not ordered
- A sample was mislabeled, mishandled, or lost
- An abnormal result was incorrectly interpreted
- A report was placed in the record but not addressed
- A significant result was not communicated
- Recommended repeat testing was not arranged
- Findings required a referral that did not occur
Responsibility may involve different providers or organizations, including the ordering physician, laboratory, radiology practice, clinic, or hospital.
The records must show who was responsible for each part of the process.
Why Is Causation Particularly Important?
The underlying disease, rather than the diagnostic error, may be responsible for some or all of the patient’s harm.
A valid assessment must separate the natural effects of the condition from any additional injury attributed to the delay.
For example, an earlier diagnosis might have allowed less extensive treatment, prevented a complication, or reduced the severity of an injury.
In another case, earlier identification might not have changed the treatment or likely outcome.
These conclusions should not be based on assumptions. They may require analysis of disease progression, treatment options, test results, medical literature, and the patient’s overall health.
The relevant medical expert must evaluate what an appropriate diagnosis probably would have changed.
What Evidence May Be Important?
A careful investigation usually begins with the complete medical record rather than an isolated appointment note. Relevant evidence may include:
- Primary care and specialist records
- Emergency department documentation
- Laboratory reports and pathology materials
- X-rays, scans, and radiology reports
- Referral orders and scheduling records
- Patient portal messages
- Telephone and follow-up notes
- Medication records
- Discharge instructions
- Records from the provider who ultimately made the diagnosis
The timeline should identify when symptoms first appeared, what the patient reported, which tests were performed, how the findings were handled, when the correct diagnosis was made, and how the patient’s condition changed during the intervening period.
Why Is Expert Analysis Usually Necessary?
Most patients and jurors cannot independently determine which tests should have been ordered or whether an earlier diagnosis would probably have changed the outcome.
Qualified medical experts can assess the standard of care, the alleged departure, and the connection between the delay and the resulting injury.
Georgia generally requires a professional-negligence complaint to be accompanied by an affidavit from a competent expert.
The affidavit must identify at least one alleged negligent act or omission and provide a factual basis for the allegation.
The appropriate expert depends on the medical issues and providers involved.
A case concerning a radiology interpretation may require different expertise from one involving emergency medicine, primary care, pathology, or oncology.
What Should a Patient Do After Learning About a Missed Diagnosis?
The immediate priority should be obtaining appropriate medical care.
Patients should follow treatment recommendations and ask the diagnosing provider to explain the condition, available treatment, and likely effects of any delay.
It may also help to:
- Request complete records from the relevant providers
- Preserve imaging and test results
- Save portal messages and written instructions
- Prepare a chronology of symptoms and appointments
- Record when and how the correct diagnosis was communicated
- Keep documentation of medical expenses and missed work
Patients should avoid altering records or relying only on personal recollection.
Contemporaneous medical documents often provide the clearest evidence of what information was available and how providers responded.
How Long Do You Have to Evaluate a Claim?
Georgia law imposes filing deadlines on medical malpractice actions, but determining the applicable deadline can involve the dates of the alleged omission, resulting injury, and other case-specific circumstances.
A patient should not assume that the filing period begins on the day the missed diagnosis is discovered.
Waiting can also make it harder to obtain records, locate witnesses, consult appropriate experts, and prepare the documents required to initiate a claim.
A medical malpractice attorney can examine the treatment chronology and applicable Georgia law to determine what deadline may govern the case.
Evaluate the Circumstances Behind a Missed Diagnosis
Determining whether a missed diagnosis supports a medical malpractice claim requires a detailed examination of the diagnostic process and the resulting harm.
A later diagnosis alone is not enough; the evidence must address the applicable standard of care, causation, and damages.
Finch McCranie LLP can examine the medical records, treatment timeline, and expert issues involved in a potential missed-diagnosis claim.
Contact the firm for a confidential consultation regarding suspected medical malpractice in Georgia.
Frequently Asked Questions
Can a claim be based on a doctor’s failure to order a test?
A failure to order a test may support a claim when the patient’s symptoms, history, examination, or other findings called for that test under the applicable standard of care. The patient must also establish that the omission caused additional harm.
Can a hospital be responsible for a missed diagnosis?
Potential responsibility depends on who made the relevant decisions and the legal relationship between the hospital and the providers involved. A hospital-related claim may also concern communication systems, follow-up procedures, laboratory handling, or other institutional conduct.
Does receiving the wrong treatment strengthen a claim?
Incorrect treatment may be relevant if it resulted from an unreasonable diagnosis and caused further injury. The treatment itself, its effects, and the harm attributable to the diagnostic failure must be evaluated separately.
What if the patient later recovered?
Recovery does not automatically resolve whether compensable harm occurred. The assessment may consider additional treatment, pain, lost income, temporary impairment, and other documented consequences. The extent of recovery may affect the nature and value of any claim.