Is every injury sustained at work covered by workers’ compensation?

By Rosalind Asch-Hobeck


Young man lying on the floor clutching his chest in pain

Understanding Workers’ Compensation: Navigating the Complex Path to Benefits After a Workplace Injury

The path to securing workers’ compensation benefits after a workplace injury is often more complex than it appears at first glance. While many injured workers assume that reporting an injury is the beginning and end of the claims process, the reality is more nuanced than anticipated. The system is designed to provide protection and compensation for injured workers, but it also offers insurance carriers multiple legal avenues to dispute, delay, or deny claims.

One of the foundational legal principles guiding many claims is the Section 21 presumption. This presumption serves as a legal safeguard for injured workers, particularly when the injury was unwitnessed or occurred under ambiguous circumstances. Essentially, it assumes that a workplace accident took place within the course of employment—until proven otherwise.

However, this is far from a guarantee of success. The Section 21 presumption merely shifts the burden of proof to the insurance carrier. It becomes their responsibility to disprove the presumption with what is termed “substantial evidence”—a high standard that requires detailed, often aggressive defense strategies that aim to undermine the injured worker’s credibility, the claim itself, or both.

 


 

How Insurance Carriers Challenge Claims Under the Section 21 Presumption

To overcome the Section 21 presumption, insurance carriers must present evidence that either contradicts the occurrence of a workplace accident or severs the link between the injury and the worker’s job duties. This is not a mere administrative formality. It’s a significant undertaking that usually requires a multi-pronged defense approach involving medical experts, investigators, and legal strategists.

Key tools in their arsenal include:

  • Detailed Surveillance Analysis:
    Carriers frequently conduct surveillance on claimants in an effort to identify inconsistencies between reported symptoms and actual physical activities. Even a brief clip of a claimant walking briskly, carrying groceries, or engaging in recreational activities can be used to challenge the validity of a claim. These short segments are often taken out of context but can still be powerful in casting doubt.

  • Comprehensive Medical Record Review:
    Insurance companies comb through past and present medical records to uncover any pre-existing conditions, gaps in treatment, or alternative explanations for the injury. A long-past injury or chronic health issue can suddenly become the centerpiece of the defense’s case.

  • Expert Medical Testimony:
    Independent medical examinations (IMEs) and depositions from retained medical experts often form the cornerstone of the defense strategy. These experts may argue that the injury is unrelated to work, is the result of natural degeneration, or is inconsistent with the claimed mechanism of injury.

  • Forensic Workplace Investigations:
    Investigators may reconstruct the scene of the incident, interview coworkers, or inspect environmental conditions to challenge the claimant’s narrative. For example, if no one else heard or saw the incident and there is no video footage, the defense may suggest it didn’t happen at all.

Taken together, these tactics illustrate just how proactive and aggressive insurance carriers can be in defending against claims. Their goal is not merely to question the injury but to build a comprehensive case against compensability—often using technicalities and plausible deniability to their advantage.

 


 

The Idiopathic Fall Defense: A Closer Look at a Common Yet Complex Argument

Among the many defenses that insurance companies employ, the idiopathic fall defense is particularly challenging and nuanced. At its core, this defense hinges on the idea that an employee’s fall at work may have been caused by a purely personal medical condition—one that has no relationship to the work environment.

An “idiopathic” condition refers to a health issue that arises spontaneously or from an obscure or unknown cause. In legal terms, an idiopathic fall occurs when a worker collapses or falls due to a medical episode, such as a seizure, stroke, or fainting spell, without any external contribution from the work environment.

Insurance carriers use this defense to argue that although the fall occurred at work, it was not caused by work, and therefore, it should not be compensable.

Examples to Illustrate the Defense:

  • A worker with a known seizure disorder experiences a seizure while at their desk and falls to the ground.

  • An employee faints due to low blood sugar, unrelated to any workplace conditions.

  • A cardiac episode causes a worker to collapse, striking the floor in the process.

In each of these cases, insurers may assert that the injury resulted from a purely personal medical event and not from any occupational hazard or condition. According to their logic, if the fall would have occurred regardless of the worker’s location, then it does not qualify as a work-related incident.

However, this defense is not always successful—and often overlooks key contributing workplace factors.

 


 

Challenging the Idiopathic Fall Defense: The Importance of Environmental and Workplace Factors

What the idiopathic fall defense often fails to account for is the significant role the work environment can play in the injury itself—even when the initial cause is personal. If a fall that began from a personal condition results in an injury due to striking workplace equipment, sharp corners, machinery, or hard surfaces, the incident can still be compensable.

For instance, if a worker faints from an idiopathic condition but strikes their head on a concrete floor or a steel filing cabinet, the workplace contributed materially to the severity of the injury. This opens the door for legal rebuttal.

Steps to Build a Strong Rebuttal:

  1. Scrutinize Medical Evidence
    Medical records should be analyzed for any evidence that workplace conditions may have exacerbated the worker’s underlying condition. For example, job-related stress triggering a cardiac event can serve as a vital connection between the personal condition and the workplace. The presence of aggravating work conditions is often overlooked but can be pivotal.

  2. Document Environmental Factors
    Conditions like slippery floors, poor lighting, or obstructions in walkways can transform a simple fall into a compensable injury. Photos, inspection reports, maintenance logs, and incident reports should be collected and preserved. The more detailed the documentation, the stronger the claim.

  3. Capture Impact Dynamics
    If the fall resulted in hitting objects such as filing cabinets, steel workbenches, or concrete flooring, those impacts may strengthen the argument that the work environment contributed directly to the severity of the injury. A medical expert may also be able to correlate the injury pattern with the environmental hazards.

  4. Leverage Corroborative Testimony
    Witness statements, coworker observations, and security camera footage can be indispensable in constructing a timeline of the event. These elements can support or contradict the defense’s assertion of a purely personal cause. Statements from those who observed symptoms before the fall (such as lightheadedness or dizziness) can also be helpful.

  5. Employ Expert Witnesses
    Medical experts can testify to the interplay between job conditions and the injury, while workplace safety experts can weigh in on whether the environment increased the likelihood or severity of injury. Their testimony can bridge the gap between legal theory and medical reality.

 


 

Pre-Existing Conditions: A Common Battleground in Workers’ Compensation Cases

Insurance carriers frequently focus on pre-existing conditions to undercut the validity of a claim. These conditions—such as heart disease, high blood pressure, vertigo, epilepsy, or diabetes—are often cited as the “real” cause of the injury, not the workplace.

Yet, the law acknowledges that even a pre-existing condition, when aggravated or accelerated by workplace conditions, can result in a compensable claim. It’s the interaction between the condition and the job duties or environment that matters—not merely the origin of the condition.

Consider These Realistic Scenarios:

  • A worker with a mild heart condition is forced to meet intense deadlines and frequently skips breaks. The stress leads to a cardiac event at work.

  • A construction worker with a history of dizziness falls on a poorly maintained scaffold.

  • An office worker with low blood sugar collapses after being unable to take a scheduled break due to workload demands.

In these situations, the employer and insurer may argue that the underlying health condition is the cause. However, a well-prepared legal team can demonstrate that the workplace acted as a catalyst, and thus, the injury should be covered under workers' compensation. Even temporary worsening of a condition may qualify for benefits.

 


 

The Role of Detailed Disclosure: Why Honesty with Your Attorney Is Crucial

One of the most damaging things an injured worker can do to their case is withhold information from their legal counsel—especially regarding pre-existing conditions or prior injuries. Attempting to conceal this information can backfire dramatically, especially when insurance companies obtain medical records or conduct background checks.

Transparency is not just about honesty—it’s about strategy.

Full transparency allows your attorney to:

  • Anticipate Carrier Strategies:
    Knowing what arguments the insurer may raise helps your attorney build counter-narratives ahead of time. Surprises in a courtroom rarely benefit the claimant.

  • Establish Causation Clearly:
    Your attorney can collect the right evidence and expert testimony to bridge the connection between your job and the injury.

  • Maximize Your Benefits:
    Strategic legal representation ensures you get all the benefits you’re entitled to—lost wages, medical care, and possible permanency awards. Withholding facts often results in missed opportunities or reduced compensation.

 


 

Essential Elements for Strengthening a Workers’ Compensation Claim

Whether you’re preparing to file a claim or are already involved in a contested case, there are critical steps you can take to strengthen your position:

  1. Comprehensive Medical Documentation
    Secure all medical records, including those from prior conditions. Ask treating physicians to provide detailed explanations of how your job duties or environment could have contributed to your current condition.

  2. Detailed Incident Reporting
    Complete an incident report as soon as possible and include every relevant detail: time, location, contributing factors, witnesses, and post-incident symptoms. Omissions can be used against you later.

  3. Photos and Physical Evidence
    If there were hazards like wet floors, cluttered hallways, or broken equipment, photograph them immediately. Such evidence may not be preserved for long and can be vital to proving your case.

  4. Consultation with a Skilled Attorney
    A workers' compensation attorney can evaluate the nuances of your case, handle communication with the insurer, and represent you at hearings or appeals. Attempting to navigate the system without legal support is risky—especially when the insurer has a full legal team behind them.

 


 

Final Thoughts: Empowering Yourself in the Face of Complexity

The world of workers’ compensation is laden with legal intricacies, procedural hurdles, and strategic defenses aimed at limiting payouts. While the system exists to protect workers, insurance carriers are well-versed in using technicalities and defenses like the idiopathic fall argument to shift the blame.

Arming yourself with knowledge, hiring experienced counsel, and being transparent about your medical history are some of the most powerful steps you can take. Don’t go into this process alone or uninformed—know your rights, know the defenses, and build your case accordingly.

 


 

Further Resources and Considerations

If you are considering navigating your workers’ compensation case without legal representation, you may want to read our article: Can I Handle My Workers’ Compensation Case Without a Lawyer? “ This piece explores the risks and responsibilities of self-representation, particularly in contested or medically complex claims.


A worker with broken arm filling workers' compensation form

Find the Right Lawyer Today!

Take the next step in finding the right lawyer for your needs. Click below to fill out a quick questionnaire and get started!
Get Started Now

Disclaimer

Disclamer: LawyerLanding.com is not a law firm and we do not give legal advice. Consult a lawyer if you have any legal questions. Participation in LawyerLanding.com allows participating lawyers to review your questionnaire and contact you. This is not a referral service. You choose a lawyer to represent you and you are not obligated to choose a lawyer that contacts you from this service. LawyerLanding.com provides you with a method to locate an attorney that is right for you. We do not guarantee results. 


THIS BLOG IS NOT LEGAL ADVICE.  FOR LEGAL ADVICE CONSULT AN ATTORNEY WHO SPECIALIZES IN WORKERS’ COMPENSATION AND EMPLOYMENT ISSUES.  THIS BLOG IS FOR INFORMATIONAL PURPOSES ONLY.