- Free Consultation: (630) 527-4177 Tap Here to Call Us
Can You File a Car Accident Claim If You Didn’t Go to the ER Right Away?

After a car crash, the adrenaline can be overwhelming. Many people walk away from accidents believing they’re unharmed, until hours or days later, when the pain sets in. If you didn’t go to the emergency room immediately after a car accident, you might now be wondering: Can I still file a car accident claim? The answer is yes but with some important caveats. While delaying medical treatment doesn’t automatically bar you from compensation, it can complicate your case and open the door to insurance disputes.
In this blog, we’ll explore how delayed medical care affects personal injury claims, what steps you can take to strengthen your case, and what the data tells us about car accidents and injury timelines.
The Scope of the Problem: Car Accidents and Injury Rates
Car accidents are a leading cause of injury and death in the United States. According to the National Highway Traffic Safety Administration (NHTSA), there were an estimated 6.1 million police-reported crashes in 2021 alone. Of those, about 2.1 million resulted in injuries, and nearly 43,000 resulted in fatalities.
Despite these staggering numbers, not every injured person seeks treatment immediately. Sometimes the pain doesn’t set in right away. In other cases, people may avoid the ER due to high deductibles, a lack of insurance, or simply because they underestimated the severity of their injuries.
However, insurers often scrutinize these delays. Even though the law allows you to file a claim later, the longer you wait to receive medical attention, the more hurdles you may face when pursuing compensation.
Why Immediate Medical Treatment Helps a Personal Injury Case
Seeing a doctor or visiting the ER right after an accident does more than protect your health, it strengthens your legal case. Prompt medical treatment creates a documented timeline that directly connects your injuries to the accident. Emergency room records, diagnostic imaging, and doctor’s notes can serve as foundational evidence that validates your claim.
Medical documentation also serves as a defense against one of the most common tactics used by insurance companies: arguing that your injuries weren’t caused by the crash. If you wait several days, or worse, weeks, before seeing a doctor, insurers may claim your injuries were caused by something else, like lifting a heavy object at work or slipping at home.
Additionally, many injuries don’t produce symptoms right away. Soft tissue damage, whiplash, concussions, and internal bleeding can remain hidden initially. Without early medical evaluation, these injuries can go untreated, worsening over time and potentially affecting long-term health outcomes.
How Delaying Medical Care Can Harm Your Car Accident Claim
Even though you can file a car accident claim without an immediate ER visit, waiting too long to seek treatment may jeopardize your ability to recover fair compensation. Insurance companies are quick to question claims with delayed diagnoses, especially if there’s a gap of several days or more.
From a legal standpoint, delays weaken the causal link between the crash and the injury. A solid personal injury case hinges on proving that the defendant’s negligence caused your injuries. If you didn’t seek care right away, the burden falls on you and your attorney to establish that connection through medical records, expert opinions, or consistent personal accounts.
Moreover, delays can reduce your claim’s perceived value. The Insurance Research Council has found that the average bodily injury claim payout in recent years was approximately $26,501. However, claims with documented and immediate treatment tend to settle for significantly more. Adjusters often view delayed treatment as a sign that the injury was minor or not worthy of full compensation.
Common Reasons for Delayed Treatment (and How to Explain Them)

It’s not uncommon for people to delay medical treatment for legitimate reasons. In the aftermath of a crash, many victims are disoriented, overwhelmed, or in shock. Others may have felt fine at first, only to experience delayed symptoms days later.
If you’re in this situation, it’s critical to provide a clear and credible explanation for why you waited. For example, maybe you initially believed your injuries were minor, or perhaps you had responsibilities that prevented you from going to the ER right away. The key is to be honest and consistent. Make sure your medical provider documents not only your current symptoms but also how they relate to the crash and when they began.
What to Do If You Delayed Medical Treatment
If you didn’t go to the ER right away, all is not lost. There are still steps you can take to support your injury claim:
- Seek medical attention as soon as possible. Go to your doctor, an urgent care center, or a hospital and explain your symptoms and the crash.
- Be transparent with your provider. Make sure to describe when the crash happened and how your symptoms developed over time.
- Document everything. Keep records of all medical visits, bills, diagnoses, and treatment plans. These will be essential for your attorney and for settlement negotiations.
- Avoid further delays. Gaps in treatment can be just as damaging as initial delays. Stick to your prescribed recovery plan and attend all follow-up appointments.
- Consult an experienced Illinois car accident attorney. An experienced lawyer can help explain the delay to insurers or a jury and gather the necessary medical evidence to support your case.
Real-World Example: When Delay Doesn’t Mean Denial
Imagine this scenario: You’re rear-ended on a busy street in Oak Brook, Illinois. At the time, you feel shaken but not seriously hurt. You go home, thinking you just need some rest. Three days later, you wake up with intense neck and shoulder pain. After visiting your primary care physician, you’re diagnosed with cervical strain and referred to physical therapy.
Despite the delay, you still have a viable claim, but you’ll need to explain the timeline and present medical evidence showing that your injury likely stemmed from the crash. Your attorney may also enlist a medical expert to confirm that delayed-onset symptoms are consistent with whiplash injuries, which often take 24–72 hours to appear.
This type of delayed presentation is not uncommon. According to a study published in The American Journal of Emergency Medicine, many crash victims do not report pain immediately and instead experience symptoms gradually over the course of several days.
Legal Considerations of Filing a Claim Without an Immediate ER Visit
Under Illinois law, you typically have two years from the date of the accident to file a personal injury lawsuit. However, waiting too long to get medical treatment could give the impression that your injuries are not serious or unrelated altogether.
In these cases, insurers often argue that there’s insufficient proof connecting the accident to your injuries. To overcome this, you and your attorney may need to rely on:
- Consistent statements you made to doctors.
- Witness accounts that support your version of events.
- Expert testimony confirming the delayed symptoms were consistent with trauma.
It’s worth noting that the vast majority of car accident claims (about 95%) are resolved without going to trial. However, claims involving delayed treatment often face tougher negotiations and may require extensive litigation to achieve a fair outcome.
Call the Award-Winning Illinois Car Accident Lawyers at John J. Malm & Associates
At John J. Malm & Associates, our skilled team of Illinois car crash attorneys understands that not every injury is obvious right away. We’ve helped countless clients who delayed seeking medical attention still recover full compensation for their injuries. If you were involved in a car accident and didn’t go to the ER right away, don’t let the insurance company deny your claim without a fight.
Contact us today for a free consultation. We’ll help you build a strong case, even if your road to recovery started a few days late.