Top 7 Reasons for Health Insurance Denials

A Harvard Medical School study calculated that prior to the Affordable Care Act, as many as 44,000 people per year died because they lacked health insurance. While being insured is definitely the better option, as many as 1 in 5 submitted medical claims are routinely denied, even for patients who conscientiously remain in-network for all their healthcare needs.

Some companies, like UnitedHealthcare, may report denial rates as high as 32 percent. If you are forced to seek healthcare out-of-network, you have a nearly 50/50 chance of having your claim denied.

Health insurance is meant to provide financial protection and peace of mind during illness, injury, or medical emergencies. Yet many Californians find that peace of mind goes out the window when their treatment or healthcare claim is denied, usually at a time when they need it most. Procedures are rejected, prescription drugs go uncovered, and patients are left scrambling to understand why their insurer is rejecting treatments deemed necessary by their physicians.

If you want clarity on why your health insurance claim was denied, don’t navigate this alone. Reach out to us online or call us at 626-243-5598 free of charge to get clear answers quickly.

Health Insurer Tactics to Discourage You From Appealing

Healthcare denials often arrive with complex explanations, terminology you may not be familiar with, and strict deadlines that make the process seem intentionally discouraging. And, in fact, denials are intentionally discouraging, so much so that less than one percent of those who receive a denial appeal that decision. This is despite the fact that a significant portion of appeals are successful.

It is important to note that the health insurance denial you receive is quite often not the final word. Insurers rely on a limited set of recurring justifications, such as alleged policy exclusions, internal clinical guidelines that sometimes have little to do with actual medical needs, lack of “medical necessity,” or claims that the procedure or treatment is “investigational,” or “experimental.” What you may not know is that Californians enjoy extensive consumer protection laws, making denials appealable when combined with facts, documentation, and attention to time constraints.

Why Learn the Reason for Your Healthcare Denial

Understanding why your healthcare claim was denied is one of the most important steps in deciding what to do next. Some denials can be quickly resolved because they result from billing or coding errors or missing information. Other denials require a much more targeted, strategic response, including a formal internal appeal, and potential escalation to an Independent Medical Review (IMR), often referred to as an external appeal. If you are unsure of the underlying reason for the denial, you may waste valuable time pursuing the wrong remedy.

While you can pursue the appeal process on your own, it can be a very daunting task. An experienced healthcare denial attorney from the Law Offices of Scott Glovsky may be able to help you identify weaknesses in your insurer’s decision, avoid repeat denials, and take informed steps toward restoring your coverage for medically necessary care. To ensure you fully understand why your claim was denied, below you will find the top 7 reasons for healthcare claim denials.

Coding and Billing Errors

Billing and coding errors are among the most frequent reasons for health insurance denials. They can also be among the most frustrating, since most patients have no idea what code corresponds to what procedure. Denials based on billing or coding errors have nothing to do with whether your care was appropriate; they result from a technical mismatch between how your services were documented, coded, and submitted to the insurer. Virtually all health insurance companies use standardized billing codes when evaluating claims. The codes describe the procedure performed, the diagnosis being treated, and the medical justification for the service. If even one element is incomplete, incorrect, or inconsistent, the automated claim system will likely flag the claim for denial without a human being ever looking at it. Common coding and billing issues include:

• A procedure code that is inconsistent with the provider’s treatment notes
• A diagnosis code that does not support the billed procedure
• Clerical errors in provider information
• Clerical errors in patient identifiers
• Missing modifiers explaining why the service was necessary
• Claims submitted in the wrong sequence

Since most claims are processed electronically, misaligned codes often result in automatic denials, even when the treatment was medically necessary and covered under the policy. Billing and coding errors are frustrating because they are far outside your control. A provider that is using an outdated code, submits an incomplete record, or relies on billing staff who are unfamiliar with an insurer’s requirements can prevent you from getting the treatment you need. These errors are also frustrating because, rather than framing them as an administrative mistake in your denial-of-benefits letter, they may be labeled “non-covered services.” This can make you think there is no chance of reversing the denial, when correcting a code or submitting supplemental documentation can actually fix the issue.

Policy Limitations or Exclusions

Your denial could have been based on specific policy exclusions, annual limits, or coverage caps. Insurers often rely on the “fine print,” which you were likely never clearly informed about or didn’t read. Policy limitations and exclusions are among the most commonly cited reasons for denials – and also the most misunderstood. Insurers point to plan exclusions as though they are absolute, when the reality is that coverage likely depends on the interpretation of the policy language and how it is applied to your specific medical circumstances.

Your health insurance policy will have a detailed section describing what is covered, what is limited, and what is excluded altogether. These sections are intentionally written in very technical language that few policyholders even see until a claim denial occurs. Coverage limits could be applied out of context or incorrectly, services may be labeled as excluded even when necessary to covered treatment, and mental health or rehabilitative services may be limited in ways that conflict with California requirements. In all these situations, reviewing the full policy rather than the summary is crucial.

Missed Deadlines and Late Submissions

Both claims and appeals for denied claims are subject to strict timelines. Missing a filing deadline can result in an automatic denial, regardless of the merits of the claim. These are known as procedural or administrative denials, meaning the insurer can reject your claim without an evaluation of whether the treatment was either covered or appropriate – it’s all about timing. Deadlines vary by plan type and insurer and can be buried in your policy documents. Common scenarios that lead to late submission denials include:

• Medical records submitted after the appeal has been decided
• Policyholders who wait for their provider to act while the deadline expires
• Confusion over whether the deadline applies to calendar days or business days
• Appeals filed after the stated deadline
• Corrected billing information submitted too late to reopen the claim

While you should always remain alert to missed deadlines, they do not always have to be the end of the road regarding a denial. If the notices are unclear, misleading, or incomplete, you could have grounds to challenge the denial. Further, expedited or urgent medical situations can trigger different timelines or allow for exceptions. It is essential that you keep copies of all correspondence, track submission dates, and confirm delivery in the event of a deadline dispute.

Incomplete Medical Records

Insurance companies rely heavily on clinical documentation to determine whether a service or treatment was medically necessary, properly authorized, and consistent with policy requirements. When records are inconsistent, vague, or entirely missing, coverage can be denied before a determination of whether the treatment was appropriate. Claims with records that are missing physician progress notes or treatment plans, or those with incomplete diagnostic test results, may be denied. Notes that fail to align with the billed procedure, lack of documented medical necessity, or failed conservative treatments, or records submitted without dates, signatures, or provider identifiers are also likely to be denied. The good news is that incomplete medical records are often highly correctable.

Lack of Medical Necessity

Lack of medical necessity may be one of the most commonly cited reasons for health insurance denials in California. Insurers fall back on the “not medically necessary” excuse to argue that a treatment, procedure, or service is not essential to diagnose, treat, or manage your medical condition. The term is often used to limit the amount the insurer must pay out. Rather than basing the decision on your unique circumstances – and your physician’s recommendations – your insurer relies on standardized clinical guidelines or proprietary algorithms that may be designed to limit coverage.

These “standards” often fail to account for prior treatment failures, your individual risk factors, or the progression of your condition. The good news is that medical necessity denials are vulnerable to appeal because of California and other state’s laws and because they turn on evidence. When your appeal includes a detailed physician narrative, your specific treatment history, diagnostic findings, and peer-reviewed literature, the weaknesses in the denial are often exposed.

Denials based on treatments labeled as “experimental” or “investigational” follow the same trajectory as medical necessity denials. Many treatments denied on this basis are, in fact, widely accepted in the medical community. Once this is clearly established, through litigation or the appeal process, the insurer will often reverse its denial.

Out-of-Network Provider Issues and Failure to Obtain Prior Authorization

Your claim could be denied when you seek medical care from a provider who is outside your plan’s approved network. This sometimes occurs in an emergency situation when access to in-network providers is limited. California law offers protections in certain out-of-network and emergency situations, but your insurer may not have applied those rules correctly.

Your plan may require pre-authorization for certain procedures, imaging, or specialty care, and when that authorization is not obtained, you may receive a denial. These denials are usually the result of miscommunication between your provider and your insurer and can often be reversed on appeal or once your healthcare provider submits an explanation.

Disputes Regarding Emergency Care

Disputes regarding emergency medical care can be particularly contentious. The insurer may argue in the denial that the medical situation did not qualify as a true emergency. As the person who was actually a part of the emergency, this reasoning can feel very unfair. Your insurer is reviewing your emergency claim in hindsight, after your symptoms have resolved, or tests have ruled out a life-threatening condition, ignoring the urgency and uncertainty we all feel during a medical crisis. In California, coverage decisions for emergency care must be based on what a reasonable person with average medical knowledge would believe at the time the symptoms occurred. Emergency care claim denials are highly challengeable, as independent reviewers routinely overturn them.

Why You Should Contact the Law Offices of Scott Glovsky Following a Health Insurance Claim Denial

If your medical claim was denied, delayed, or underpaid, it is essential that you act quickly to preserve your right to appeal. An experienced California health insurance denial lawyer from the Law Offices of Scott Glovsky can guide you through the appeal process – both the internal appeal and the Independent Review.

While it is normal to feel overwhelmed, attorney Scott Glovsky has been fighting for justice for his clients for decades. Scott never hesitates to take on a large insurance corporation when a denial is unjust. When you choose the Law Offices of Scott Glovsky, we will help you understand your options, avoid procedural mistakes, and pursue the coverage you are entitled to under California law. Contact our legal team online or call us at 626-243-5598 today.