Common Types of Diagnostic Errors

Common Types of Diagnostic Errors

Identifying and Understanding Diagnostic Mistakes in California Medical Malpractice Cases

Understanding Diagnostic Errors

When you visit a doctor or hospital in California, you trust that your symptoms will be carefully evaluated. Unfortunately, diagnostic errors are a leading cause of medical malpractice claims, often resulting in serious harm. Knowing the types of mistakes that happen during the diagnostic process can help you recognize if you or a loved one has been affected—and what steps you can take next.

What Diagnostic Errors Mean

Diagnostic errors occur when a medical provider fails to identify a health problem accurately or in a timely manner. This can include missing the real cause, making an incorrect diagnosis, or failing to spot a related condition. In California, these errors may lead to delayed treatment, unnecessary procedures, or even life-threatening complications.

Common Causes in California

The most frequent types of diagnostic errors seen in California medical malpractice claims include:

  • Missed diagnosis: The provider fails to detect a medical issue entirely.
  • Delayed diagnosis: The correct diagnosis is made, but only after a harmful delay.
  • Misdiagnosis: The provider identifies the wrong condition.
  • Failure to recognize complications: Related health issues are overlooked.
  • Failure to diagnose related diseases: Secondary or concurrent illnesses are missed.

These mistakes can happen in hospitals, clinics, and even during emergency care.

State and Federal Law Protections

California law protects patients from harm caused by diagnostic mistakes. Under the Medical Injury Compensation Reform Act (MICRA), you have two years from the date you discover the error to pursue a claim. Federal regulations, including Medicare requirements, set additional standards for hospitals and clinics. Both state and federal rules require healthcare providers to follow accepted medical practices.

Missed Cancer Diagnoses

One of the most devastating types of diagnostic errors is failing to identify cancer. Missing or delaying a cancer diagnosis can allow the disease to progress, often reducing treatment options. California courts frequently see claims related to undiagnosed breast, lung, and colon cancer. If you have suffered from a diagnostic mistake involving cancer, it is important to understand your legal rights.

  • Commonly missed cancers:
    • Breast cancer
    • Lung cancer
    • Colon cancer
    • Prostate cancer
    • Skin cancer

Heart Attack and Stroke Errors

Heart attacks and strokes are sometimes confused with less serious conditions. In emergency rooms, these errors can be deadly. Failure to recognize symptoms like chest pain, numbness, or slurred speech may result in inadequate care. Emergency diagnostic errors are a significant issue throughout California.

Infections That Go Undiagnosed

Sepsis, meningitis, and other serious infections require quick identification. A missed or delayed diagnosis of an infection can lead to permanent injury or death. California hospitals have protocols for infection detection, but lapses still occur—especially in busy settings.

  • Frequent infection errors:
    • Missed sepsis
    • Undiagnosed meningitis
    • Misidentified urinary tract infections
    • Delayed pneumonia diagnosis

Diagnostic Imaging Mistakes

X-rays, MRIs, and CT scans are critical for accurate diagnoses. Errors can occur if a scan is not ordered, is misread, or results are not communicated to the treating physician. Imaging errors are often cited in medical malpractice lawsuits.

  • Imaging-related mistakes:
    • Not ordering the correct test
    • Misreading scan results
    • Failing to follow up on abnormal findings

Lab Test Errors

Lab tests help confirm or rule out certain conditions. Diagnostic mistakes happen when tests are misinterpreted or when abnormal results are overlooked. This can delay vital treatment, especially for conditions like diabetes or infections.

  • Common scenarios:
    • Lost or mixed-up samples
    • Incorrect interpretation of bloodwork
    • Failure to act on abnormal results

Communication Breakdowns

Diagnostic errors often stem from poor communication between providers, especially during shift changes or when care is transferred between specialists. Lack of clear instructions or incomplete records can cause crucial information to be missed.

  • Communication lapses:
    • Incomplete handoff notes
    • Missing discharge instructions
    • Unclear follow-up plans

Pediatric Diagnostic Errors

Children present unique diagnostic challenges because symptoms can be subtle or mimic other illnesses. Missed appendicitis, infections, or congenital conditions are common in pediatric malpractice cases in California.

  • Typical pediatric errors:
    • Undiagnosed appendicitis
    • Missed meningitis
    • Failure to recognize congenital disorders

Elderly Patients at Higher Risk

Older adults may have multiple health issues, making diagnosis more complex. Overlapping symptoms or assumptions about “normal aging” can lead to missed diagnoses in California’s aging population.

  • Risks for seniors:
    • Overlooking heart problems
    • Misattributing confusion to dementia
    • Missing medication side effects

Steps You Can Take

If you suspect a diagnostic error, consider the following:

  • Gather all medical records and test results.
  • Request a second opinion from another provider.
  • Keep a journal of symptoms and interactions.
  • Reach out to an attorney experienced in medical malpractice claims.

How Attain Law Can Help

At Attain Law, our team understands the devastating impact of diagnostic mistakes. We can review your case, explain your legal options, and help you seek accountability. Whether you have suffered from a medication error, surgical mistake, or other medical negligence, we are here to support you.

Know Your Damages

Victims of diagnostic errors in California may be eligible to recover:

  • Medical bills (past and future)
  • Lost income and earning capacity
  • Pain and suffering (subject to MICRA caps)
  • Rehabilitation and ongoing care costs

Learn more about compensation in malpractice lawsuits.

Preventing Future Errors

While not all mistakes can be prevented, being proactive can help:

  • Ask questions during appointments.
  • Bring a list of symptoms and medications.
  • Follow up on test results.
  • Seek a second opinion if you have doubts.

Related Practice Areas

Related Articles

Closing Reassurance

Diagnostic errors can turn your life upside down, but you are not alone. The attorneys at Attain Law are ready to listen and help you understand your rights. For answers and support, contact us today for a free consultation at 888-970-8627 or contact us today for a free consultation. We are here to support you.


Frequently Asked Questions about Diagnostic Errors in California

What is a diagnostic error in California? A diagnostic error occurs when a healthcare provider fails to identify a medical condition accurately or in a timely manner, leading to delayed or incorrect treatment.

How long do I have to file a claim for a diagnostic error? You generally have two years from the date you discover the error to file a medical malpractice claim in California.

Are all diagnostic errors considered malpractice? Not every error is malpractice. A claim must show that the provider failed to meet the expected standard of care, leading to harm.

What types of damages can I recover? You may be eligible for compensation for medical expenses, lost income, pain and suffering (subject to California law), and other related losses.

Should I get a second opinion if I suspect a diagnostic error? Yes, seeking a second opinion is a good way to confirm or rule out a misdiagnosis and protect your health.

Disclaimer: This is an advertisement. The information provided is for general purposes only and is not legal advice. Consult a qualified attorney for your specific case. Attain Law cannot guarantee outcomes, as results vary by situation.

Browse Other Articles for "Diagnostic Errors" in California:

Start Your FREE Consultation

Complete the form for a Free Consultation. No upfront fees, swift action, and we’re only paid when we succeed for you.

By submitting this form, you agree to receive calls, texts, or emails from us and accept our Terms and Privacy Policy.

Results vary by case. ©2025 Attain Law Corp. All rights reserved.

Why Choose Attain Law?

No Upfront Costs
We operate on a contingency fee basis—you pay nothing unless we win your case.
Personalized Attention
Every case is unique. We tailor our strategies to fit your specific situation.
Proven Track Record
Our firm has successfully recovered millions for our clients.
Statewide Representation
Based in Encino, we serve clients throughout California.

Justice Is One Step Away

Ready to turn your struggle into strength? At Attain Law, we’re here to take on your fight—whether it’s a car accident, a dangerous drug, or a workplace injury gone wrong. One call starts it all, and we’re with you every step, no upfront cost required.

  • Free Case Review
  • No Fees Until Victory
  • Millions Recovered
  • Personal Strategy
  • California Coverage
  • Relentless Case Pursuit
Free Case Review