Why Do Insurance Companies Deny Claims? A Practical Guide for Medical Practices
For the healthcare providers in Michigan, claim denials have become a great operational challenge. When a claim is denied, not only does it delay payment to the provider but it creates administrative work such as appeals and many times hopless tasks which are most probably not going to result in the payment being released at all. The AMA has found that on average, physicians spend about 16 hours per week managing prior authorizations. In addition to dealing with denials, physicians face an overwhelming administrative workload. The majority of denials do follow patterns that can be predicted. In this blog, we identify the most frequent causes of claim rejections by insurance companies, describe the underlying billing procedures for each cause of rejection, and offer specific guidance toward achieving fewer denials and expediting the recovery of lost income. Why Do Insurance Companies Deny Claims? The Scope of the Problem The frequency of claim denials exceeds what most providers expect to see. CMS data shows that denial rates for commercial and government payers reach a range between 5% and 15% of all claims that healthcare providers submit. The percentage of claims denied through denial management processes that lack formal systems increases to higher levels. The American Academy of Family Physicians estimates that 65% of all denied claims remain unreexamined. Practices lose considerable payment because they cannot manage their denial cases, which results in staff having to process too many rejections. Denial categories existing within the denial categories need to meet academic standards. Revenue protection establishes the organization as a revenue maintenance program. Organizations need to apply distinct actions for every denial type while confusing denial types results in multiple operational mistakes. 6 Most Common Reasons Insurance Claims Are Denied Claim denial reasons in medical billing fall into several well-defined categories. Each one points to a specific breakdown in the revenue cycle workflow. The following sections address the most frequent causes, how they arise, and what corrective steps are available. 1. Patient Eligibility and Coverage Issues The primary reason for claim rejection lies with insurers because patients did not meet eligibility requirements on the date when they received treatment. Patients lose coverage when they fail to maintain active insurance policies and when they move to different insurance plans or when they receive treatment through an unauthorized network without a referral. All eligibility checks need to occur before a patient meets their doctor and not after that point. Michigan dental and medical practices need to implement their eligibility verification system through real-time checks which should connect to their clearinghouse or payer portal. The patient scheduling process requires verification of active insurance coverage along with co-payment details and deductible information and in-network status. Practice operations need to demonstrate all verification results through patient documentation. The process creates a documentation path that organizations can use to defend their eligibility claims when a payer questions their eligibility after the fact. 2. Missing or Incorrect Prior Authorization The most expensive denials in ambulatory and specialty care result from prior authorization denials. The payer will deny the claim when the practice proceeds with the procedure or medication without obtaining pre-approval from the payer. In most situations, authorization that goes back to a previous date cannot be obtained. Authorization errors that include incorrect authorization numbers and wrong service date ranges and invalid CPT codes will result in a denial. The billing staff needs to verify that the authorization document matches the claim document completely before they proceed with submission. The guidance from CMS about Prior Authorization describes the responsibilities that payers must fulfill when handling Medicare Advantage programs. Your organization can lower its authorization denials with these requirements because they help you track the healthcare requirements of your Michigan patients. 3. Coding Errors: ICD-10, CPT, and HCPCS Mismatches Health insurance claims most often get rejected because of incorrect codes which do not have any supporting evidence. The most common coding errors involve three main issues: first, using diagnosis codes which do not prove medical necessity for the billed procedure; second, submitting unspecified ICD-10 codes when more specific options exist; and third, applying CPT codes which violate the patient’s age and sex and place of service. Coders must verify that ICD-10 codes connect to both CPT and HCPCS Level II codes. The AAPC and AHIMA both publish annual updates to their coding guidelines. Michigan practices that depend on outdated code systems and fail to conduct annual coder training will experience higher denial rates. Payers frequently conduct audits and adjust claims because of bundling errors that occur when separate codes get included in a single comprehensive code. Organizations use regular high-volume CPT code audits to discover these patterns which exist before they develop into permanent issues. 4. Timely Filing Limit Exceeded All payers impose a specific deadline which allows claim submission for a period between 90 days and one year after the date of service. The clinical appeal process is blocked when a claim is submitted after the designated time period. The only way to prove timely submission of the claim exists through evidence from the clearinghouse acknowledgment records. Michigan healthcare facilities need to create a filing limit system which requires them to maintain their specific payer limits while their practice management system needs to generate automatic alerts. The system of staff memory fails to track these deadlines which results in unnecessary financial losses especially with secondary payer claims. The secondary claim becomes denied when a primary payer makes a delayed payment and the secondary claim exists beyond the secondary payer’s established deadline. The coordination of benefits process requires organizations to track both filing windows because they must monitor two distinct time periods. 5. Duplicate Claim Submissions Payers reject duplicate claims when the same service, date, provider, and patient appear more than once. The situation occurs when a claim remains in pending status while staff members resubmit it without checking its original status. The outcome leads to a denial which prevents the initial payment from being processed while the account undergoes examination.