A correct diagnosis is the basis for quality medical care. A missed or delayed diagnosis is the foundation for a health disaster. If a negligent medical diagnosis caused your illness to worsen, you may have rights. Coates & Johnson can help you determine the extent of those rights when it comes to filing a medical malpractice claim and seeking damages for your condition.
Our firm focuses exclusively on medical malpractice litigation and has more than two decades of experience investigating complex diagnostic failures. Our Las Cruces medical malpractice lawyers understand how to uncover what went wrong in the medical decision-making process. Contact us today in Las Cruces, New Mexico, to schedule a free consultation for the legal help you deserve.
Why Choose Our Misdiagnosis Attorney in Las Cruces?
Misdiagnosis claims demand lawyers who know medicine and malpractice law. Coates & Johnson has extensive experience in both.
Patients throughout New Mexico rely on Coates & Johnson because:
- We are a medical malpractice litigation firm, not just a general personal injury firm.
- We have more than 60 years of experience handling failure-to-diagnose cases.
- Our team includes a lawyer who went to medical school, which gives us a huge edge in understanding how diagnostic decisions work.
- Our partners have handled thousands of medical negligence cases and continue to oversee every case we take.
- We represent clients on a contingency fee basis.
If we accept your case, we believe you can win. We want to help you win. Contact us today to schedule a free case review with a Las Cruces misdiagnosis and delayed diagnosis attorney who cares about your situation.
Meet the Attorney: Christopher R. Johnson
Christopher R. Johnson is a trial lawyer with over 25 years of litigation experience and more than two dozen jury verdicts throughout New Mexico. He began his career defending hospitals and physicians in medical malpractice cases, giving him an inside understanding of how insurers and healthcare providers build their defense.
In 2026, Chris co-founded Coates & Johnson to focus exclusively on medical malpractice litigation in New Mexico. He personally manages every case from discovery through trial, ensuring clients receive direct attention from an experienced trial lawyer at every stage.
Table of Contents
- What is Medical Misdiagnosis and Delayed Diagnosis?
- How an Attorney Can Help with Your Misdiagnosis or Delayed Diagnosis Case
- How To Prove a Failure or Missed Diagnosis in Las Cruces?
- Who Can Be Held Responsible for Diagnostic Errors in Las Cruces?
- What Damages Are Recoverable in a New Mexico Misdiagnosis Malpractice Case?
- What to Do After a Misdiagnosis?
- How Long Do I Have to File a Medical Misdiagnosis Claim in New Mexico?
- How Diagnostic Errors Happen
- What is the Difference Between a Misdiagnosis and a Bad Outcome?
- Procedural Requirements for Filing a Medical Malpractice Claim in New Mexico
- How Much Does It Cost to Hire a Misdiagnosis and Delayed Diagnosis Lawyer?
- Contact a Misdiagnosis Attorney in Las Cruces Today
Overview of Medical Misdiagnosis and Delayed Diagnosis
Misdiagnosis and delayed diagnosis may sound similar, but they refer to different diagnostic errors that represent distinct judgments and timing. A misdiagnosis occurs when a healthcare provider identifies the wrong condition or illness. A delayed diagnosis occurs when a provider eventually makes the correct diagnosis after a significant time has passed.
These failures may occur for many reasons, including failure to properly evaluate symptoms, failure to order appropriate testing, or misinterpretation of diagnostic results.
Both types of errors can lead to serious medical consequences for patients, including but not limited to:
- Cancer, where delayed detection can allow tumors to grow or spread to other parts of the body before treatment begins
- Heart attacks, when providers fail to recognize symptoms or order appropriate cardiac testing
- Strokes, where even short delays in diagnosis can prevent patients from receiving time-sensitive treatments that limit brain damage
- Infections and sepsis, which can rapidly progress to organ failure.
- Internal bleeding, which may worsen if providers fail to investigate warning signs.
- Pulmonary embolisms, which can be fatal if missed or mistaken for a less serious condition
- Appendicitis, which can lead to rupture, infection, and emergency surgery.
- Autoimmune disorders, which may allow the disease to damage organs or other body systems
- Neurological conditions, including brain tumors or degenerative diseases that require early intervention to prevent permanent impairment
Importantly, not every delayed diagnosis constitutes malpractice. You must show that a reasonably competent healthcare provider would have identified your condition sooner under similar circumstances.
How a Las Cruces Attorney Can Help With a Misdiagnosis or Delayed Diagnosis Case
Medical misdiagnosis claims are among the most challenging types of malpractice cases. Medical providers will claim they adhered to accepted medical standards and used their best judgment in diagnosing you. Well-resourced hospitals and insurance companies will back those claims.
You need an experienced misdiagnosis attorney in Las Cruces who can investigate the circumstances of your care and determine whether your providers actually did what they were supposed to when evaluating your condition.
A misdiagnosis lawyer will be responsible for:
- Calculating the financial and personal losses associated with the delayed diagnosis
- Investigating whether symptoms, test results, or warning signs were overlooked
- Determining which healthcare providers were responsible for evaluating and diagnosing your condition
- Analyzing medical charts, physician notes, and diagnostic testing to reconstruct the timeline of care
- Working with independent medical experts to evaluate whether providers followed accepted diagnostic standards
- Assessing how the delay affected your treatment options and long-term health
Your attorney will provide you with resources and experts that can counteract unfounded claims that providers “did their job.” If you want to learn more about how an attorney can help you, reach out to Coates & Johnson for a free case consultation.
How Do I Prove a Failure or Missed Diagnosis in Las Cruces?
Under New Mexico Statutes Section § 41-5, proving a failure-to-diagnose claim requires more than showing that your medical condition worsened. You must demonstrate that your healthcare provider failed to meet accepted medical standards and that this failure caused additional harm.
The central issue in these cases is whether a reasonably competent provider would have reached the diagnosis sooner. Physicians have a duty to evaluate symptoms carefully and pursue additional investigation when warning signs suggest a serious illness. When providers fail to follow these basic diagnostic responsibilities, patients may lose critical time for treatment.
New Mexico courts generally require testimony from qualified medical experts to prove these claims. Experts will review your medical records and evaluate whether the provider’s actions were consistent with accepted medical practice.
Expert analysis may show, for example, that:
- Symptoms suggesting a serious condition were not properly investigated
- Imaging studies or laboratory results were incorrectly interpreted
- A referral to a specialist should have occurred sooner
- Diagnostic testing that would have revealed the condition was never ordered
- The delay allowed the illness to advance to a more severe stage
In many cases, more than one medical expert may be needed to address different aspects of the claim. Your attorney will help coordinate this testimony and hire the most relevant and persuasive experts for your situation.
Who Can Be Held Responsible for Diagnostic Errors in Las Cruces?
Multiple healthcare professionals can be involved in a delayed or missed diagnosis. These claims often involve referrals and/or teams that coordinate care for the affected patient.
The following professionals may be responsible for your deficient diagnosis:
- Emergency department physicians who overlook warning signs of serious or life-threatening conditions
- Medical specialists who do not adequately investigate abnormal findings or concerning symptoms
- Radiologists who incorrectly interpret imaging studies such as CT scans, MRIs, or X-rays
- Primary care doctors who dismiss symptoms or fail to request necessary diagnostic testing
- Pathologists who make errors when reviewing biopsy samples or laboratory results
- Hospitals or healthcare systems that fail to properly communicate test results or coordinate patient care between providers
Determining liability in a delayed diagnosis case often requires reviewing the entire course of treatment to identify where the breakdown occurred. An attorney, with help from medical experts, can help you pinpoint who should have responded differently when diagnosing your condition.
What Damages Are Recoverable in a New Mexico Misdiagnosis Malpractice Case?
A delayed diagnosis may allow a disease to progress or require more invasive medical care than would have been necessary with timely treatment. In these situations, patients may be entitled to financial compensation for the harm they suffered.
Economic damages will help cover your monetary losses related to the deficient diagnosis, i.e., those that can be proven with invoices and other documentation. Non-economic damages will cover your personal, non-monetary losses related to the injury, which can be extremely high in failure-to-diagnose cases.
A successful medical malpractice claim may include money for:
- Medical expenses related to diagnosing and treating the condition
- Additional medical treatment required because the illness progressed before it was identified
- Future medical care and rehabilitation needs
- Lost income for time missed from work during treatment and recovery
- Reduced earning capacity if the condition limits the patient’s ability to work in the future
- Pain and suffering caused by the illness
- Emotional distress associated with facing a more advanced condition
- Diminished quality of life resulting from the delayed diagnosis
In tragic cases where a delayed diagnosis results in a patient’s death, surviving family members may also pursue wrongful death damages. These claims may provide compensation for funeral and burial expenses, medical bills incurred before death, and the financial and emotional losses experienced by surviving family members.
What to Do After a Misdiagnosis
Discovering that a medical condition was missed or misidentified is disorienting. You may be facing a more advanced illness than you expected and serious questions about how this happened. Taking the right steps in the days and weeks that follow can protect both your health and your legal options.
If you believe you were affected by a misdiagnosis or delayed diagnosis, consider the following steps:
- Prioritize your medical care. Consider seeking a second opinion or transferring your care to a specialist if you have not already done so.
- Gather and preserve your medical records. Request complete records from every provider who evaluated or treated you, including office visit notes, laboratory results, imaging studies, referral records, etc.
- Avoid discussing the potential malpractice with the provider or their staff beyond what is necessary for your ongoing care. Do not sign any documents presented by the provider’s insurer or hospital risk management team without first consulting an attorney.
- Document how the delay has affected your life. Keep notes on your symptoms and the ways your condition has affected your life. This record can provide valuable evidence of non-economic damages.
You should also contact a misdiagnosis attorney as soon as possible. An attorney can review your claim and help you understand your legal options for seeking compensation. They can also protect you from mistakes that could hurt your claim.
How Long Do I Have to File a Medical Misdiagnosis Claim in New Mexico?
One major issue surrounding medical malpractice are patients that are too afraid to report medical errors and after some time, they may no longer file a claim. Under New Mexico law, most medical malpractice claims must be filed within three years from the date of the malpractice. If you miss the deadline, you may lose your right to seek compensation in court.
However, determining when the deadline can be complicated in misdiagnosis cases because the injury may not be discovered immediately. Additionally, if the healthcare provider involved is covered under the New Mexico Medical Malpractice Act, the case may require an additional step before a lawsuit can be filed in court.
If you believe you were harmed by a delayed diagnosis, you should contact an experienced Las Cruces misdiagnosis and delayed diagnosis lawyer right away for help understanding the time limits and filing requirements for your claim.
How Diagnostic Errors Happen
Misdiagnosis usually develops through a series of judgment calls and communication breakdowns, rather than a single mistake.
One of the most well-documented causes of diagnostic error is cognitive bias. Physicians are trained to recognize patterns, which can lead providers to hone in on one condition and stop looking for alternatives (even when new information suggests a different explanation).
Communication failures between providers are another issue. Modern healthcare involves multiple specialists, handoffs between shifts, and results that travel through several systems before reaching the physician responsible for acting on them. These are all points at which the diagnostic process can break down.
Other common contributors include:
- Failure to take a complete medical history or account for a patient’s known risk factors
- Over-reliance on a prior diagnosis without reassessing when symptoms change
- Inadequate physical examination
- Failure to order imaging, laboratory testing, or specialist consultation
- Time pressure and patient volume in emergency settings
- Failures in how results are tracked and communicated
Often, misdiagnosis claims require an extensive investigation to determine whether malpractice occurred and which parties are liable for diagnostic mistakes.
Suffering Due to a Misdiagnosis?
Contact Our Misdiagnosis Attorney in Las Cruces Today
The Difference Between a Misdiagnosis and a Bad Outcome
Not every diagnostic error gives rise to a medical malpractice claim. Even competent physicians reach incorrect conclusions.
The legal standard in New Mexico is whether a reasonably competent provider — given the same symptoms, test results, and clinical information — would have made different treatment decisions that could have changed the patient’s health outcome.
A bad outcome becomes potential malpractice when the evidence shows that the provider deviated from accepted diagnostic standards. Examples include:
- Failing to order a test that standard practice requires
- Dismissing symptoms that should have prompted further investigation
- Misreading results in a way that a qualified specialist would not.
The error must be traceable to a specific failure in the diagnostic process.
Causation
Even if a provider clearly fell short of the standard of care, a malpractice claim also requires showing that the diagnostic failure actually caused harm. If the condition would have progressed to the same stage and produced the same outcome regardless of when it was identified, the claim will fail.
However, when the evidence shows that earlier diagnosis would have allowed for more effective treatment or a less invasive procedure, the causation could be met.
An experienced misdiagnosis attorney can review your medical records and give you an honest assessment of whether your situation qualifies for a misdiagnosis claim.
Procedural Requirements for Filing a Medical Malpractice Claim in New Mexico
Medical malpractice lawsuits in New Mexico follow a pre-lawsuit process that is different from most personal injury claims. If a doctor or healthcare provider involved in the claim is covered by the New Mexico Patients’ Compensation Fund, the case must first be presented to the Medical Review Commission before a lawsuit can proceed in court.
At this panel hearing, the claim is submitted to a review group made up of three attorneys and three healthcare professionals. The panel examines the evidence to determine whether the care provided may have violated accepted medical standards.
During the review process:
- Your attorney presents the medical records and expert analysis supporting the claim
- The healthcare provider and their legal counsel may submit their own evidence
- Panel members evaluate the materials and discuss whether malpractice appears to have occurred
After reviewing the evidence, the panel members cast a confidential vote regarding whether the provider’s care may have fallen below the applicable standard. The panel’s opinion does not determine the outcome of the case, and it cannot be used as evidence in court. But it’s a necessary first step to initiating formal legal action.
Because of these procedural requirements, it is important to work with an attorney who understands the steps involved in initiating a malpractice claim and navigating the Medical Review Commission process.
How Much Does It Cost to Hire a Misdiagnosis and Delayed Diagnosis Lawyer?
Most medical malpractice law firms represent clients on a contingency fee basis. With these arrangements, there are no upfront fees, and your delayed diagnosis lawyer in Las Cruces will advance the costs necessary to investigate and litigate the case (including expert fees and filing fees).
Your attorney only charges fees if they recover compensation through a settlement or verdict. Their payment will merely be a pre-agreed-upon percentage of that award, usually between 33% to 40%. If your case does not result in a financial recovery, you typically do not owe attorney fees for the representation.
This structure allows injured patients to pursue justice against hospitals, physicians, and healthcare systems without having to worry about paying legal fees during an already difficult time. Coates & Johnson offers contingency fees to all malpractice clients. Reach out today to learn more about our services.
Take Action By Contacting a Las Cruces Misdiagnosis Lawyer Today for Help
A delayed or incorrect diagnosis can dramatically change the course of a person’s health and life. Patients may lose valuable opportunities for treatment that could have prevented complications or saved their lives.
If you believe a doctor or healthcare provider failed to properly diagnose your illness, you may have the right to pursue compensation for the harm you suffered. Coates & Johnson can help you hold the at-fault healthcare providers fully responsible for your losses. Contact us today to schedule a free consultation with a Las Cruces medical misdiagnosis and delayed diagnosis lawyer.