Tuesday, September 16, 2025

When your claim gets denied—it’s not just paperwork, it’s your livelihood.

 

“The greatest mistake you can make in life is to be continually fearing you will make one.”Elbert Hubbard (paraphrased: fear of mistakes should motivate improvement, not paralyze you.)


Medical billing errors cost billions of dollars annually. They lead to claim denials, audit risks, patient distrust, and significant revenue loss. As 2025 progresses, with regulatory changes, tech disruptions, and shortages of skilled billers, the margin for error is thinner than ever.

Let’s start with a story, because stories stick.


Dr. Sara runs a busy multi-specialty clinic in California. One morning, she receives a letter: a major payer is recouping payments for incorrect CPT/ICD‑10 coding over the past six months. Her staff had been using an outdated telehealth modifier. The clinic lost hundreds of thousands of dollars, spent weeks in appeals, and morale fell. They had assumed the billing software updated codes automatically. It didn’t. They believed audits wouldn’t catch telehealth mistakes. They were wrong.

If Sara’s clinic can experience this, so can yours—or your patients.


The Stakes Are High

  • Up to 80% of medical claims contain errors (Pena4).
  • The Medicare Fee-for-Service improper payment rate was ~7.66% in FY2024 (CMS).
  • Denials are commonly caused by coordination of benefits issues, missing prior authorizations, and coding errors (Tebra).

Expert Insights

  1. Dr. Amanda Liu, Medical Director, Revenue Cycle
    “If your billing and clinical teams don’t communicate on codes, documentation, and payer rules, small mistakes turn into system-wide revenue loss. Weekly mini audits focused on high-volume codes can prevent costly errors.”
  2. Carlos Mendes, Certified Coder & Consultant
    “Training is necessary, but monitoring is critical. Use claim scrubbing tools, peer reviews, and track denial trends. Target the codes and modifiers most frequently denied.”
  3. Tanya R. Johnson, Patient Advocate & Legal Fellow
    “Patients often assume billing is correct. Empowering them to review itemized bills and engage appeals increases transparency and reduces disputes, benefiting both providers and patients.”

Key Statistics on Medical Billing and Claim Denials

  • Annual Cost of Billing Errors: Medical billing errors cost the U.S. healthcare system an estimated $68 billion annually. PrognoCIS EHR
  • Claim Denial Rates:
  • Reasons for Denials:
    • Coding Errors: Responsible for about 32% of claim denials. BillFlash
    • Incorrect Billing: Accounts for 50% of insurance denials. Jobstik
  • Financial Impact:
    • Weekly Losses: The U.S. loses approximately $935 million weekly due to billing errors. Jobstik
    • Appeal Costs: Hospitals and health systems spent an estimated $19.7 billion in 2022 trying to overturn denied claims. American Hospital Association
  • Prevalence of Errors:
    • General Occurrence: Up to 80% of medical bills have inaccuracies. PrognoCIS EHR
    • Patient Experience: Approximately 65% of U.S. adults have faced billing errors. Jobstik

Common Medical Billing Mistakes & How to Avoid Them

  1. Incorrect or outdated coding
    Why it happens: Code sets change annually; outdated guides and unclear documentation.
    Impact: Denied claims, audit exposure, revenue loss. (BridgeBillingServices)
    Prevention: Update codes regularly, use certified coders, cross-walk clinical notes, and audit frequently.
  2. Missing or incomplete documentation / medical necessity lacking
    Why it happens: High patient volume, insufficient understanding of payer requirements, vague clinical notes.
    Impact: Claim rejection, recoupments, administrative delays. (Practolytics)
    Prevention: Train providers, use documentation checklists, ensure billing and clinical alignment.
  3. Duplicate billing / double charges
    Why it happens: Manual entry errors, lack of oversight, overlapping services.
    Impact: Audit flags, clawbacks, loss of trust. (Practolytics)
    Prevention: Implement duplicate detection software, clear workflows, cross-department communication.
  4. Incorrect patient info / insurance eligibility
    Why it happens: Data entry errors, outdated info, policy changes.
    Impact: Denied claims, delayed payments, patient frustration.
    Prevention: Standardize verification at registration, real-time eligibility checks, proactively update records.
  5. Missed deadlines / timely filing errors
    Why it happens: Overloaded staff, multiple payer rules.
    Impact: Permanent revenue loss, cash-flow damage.
    Prevention: Maintain a calendar of payer deadlines, use alerts, assign accountability.
  6. Failure to track denials / weak appeal process
    Why it happens: Denials assumed normal; lack of root cause analysis.
    Impact: Recurring mistakes, cumulative revenue loss, morale drop. (Tebra)
    Prevention: Use denial analytics dashboards, create appeal templates, feedback loops into coding and training.
  7. Non-compliance with regulations and payer changes
    Why it happens: Rapid changes in telehealth, mental health, remote monitoring codes.
    Impact: Fines, recoupments, legal risk, reputational damage. (StatMedical)
    Prevention: Subscribe to payer updates, participate in professional associations, review compliance regularly.

Tactical Tips to Implement Now

  1. Weekly Code-Review Meetings – Audit high-volume claims and denials.
  2. Claim Scrubber Tools – Identify coding, modifier, or eligibility errors before submission.
  3. Staff Training Across Teams – Everyone contributes to accurate billing.
  4. Clear Documentation of Medical Necessity – Tie clinical notes to codes explicitly.
  5. Multiple Insurance Verification Points – Scheduling, check-in, pre-billing.
  6. Track Deadlines – Dashboards, alerts, batch filing workflows.
  7. Monitor Denial Trends – Identify patterns and retrain staff.
  8. Foster Team Communication – Reduce assumptions between providers, coders, and patients.
  9. Leverage Technology, Not Depend on It – Software assists, humans verify.
  10. Streamline Appeals – Templates, accountability, record what works.

Myth-Busting

  • Myth: “Insurance coverage means claims won’t be denied.”
    Reality: Coverage doesn’t replace correct coding, modifiers, or documentation.
  • Myth: “Duplicate claims with minor tweaks are safe.”
    Reality: Triggers audits, accusations of fraud, and revenue clawbacks.
  • Myth: “Patients won’t notice billing errors.”
    Reality: Billing mistakes erode trust, can impact credit, and create complaints.
  • Myth: “Technology fixes all errors.”
    Reality: Automation helps, but unchecked systems can create systemic mistakes. Human oversight is still essential.

Recent News: Medical Billing Mistakes in the Spotlight

1. Surge in Medical Errors in Maryland Hospitals

A recent report from the Maryland Department of Health indicates a concerning 5% increase in serious medical errors—termed Level 1 adverse events—in Maryland hospitals during fiscal year 2023. This marks the fourth consecutive year of rising incidents, now over three times higher than the average between 2013 and 2019. Errors include delayed treatments, equipment failures, and surgical oversights, highlighting ongoing challenges in patient safety and care quality. The Washington Post

2. Operation Gold Rush: Largest Healthcare Fraud Bust in U.S. History

The U.S. Department of Justice has unveiled Operation Gold Rush, the largest healthcare fraud scheme in U.S. history, involving an alleged $10.6 billion targeting Medicare. Over a two-year period, conspirators acquired more than 30 Medicare-enrolled medical supply companies to submit fraudulent claims for unnecessary medical equipment, impacting over 1 million Americans. This incident underscores the critical need for robust fraud detection and compliance measures in medical billing. The Washington Post

3. Stamford Physician Settles Improper Billing Allegations

Dr. Halina Snowball, a licensed physiatrist in Stamford, Connecticut, and her medical practice have agreed to pay $427,129 to settle federal allegations of improper Medicare billing. The claims involved inappropriate use of Modifier 25 on evaluation and management service charges, despite no significant, separately identifiable services rendered. This settlement highlights the importance of accurate coding and adherence to billing guidelines to avoid costly errors. Stamford Advocate

 

These recent developments serve as stark reminders of the significant impact that medical billing errors can have on healthcare providers and patients alike. They underscore the importance of vigilance, accuracy, and continuous education in the medical billing process to prevent such costly mistakes.


FAQs

Q: What are the most common CPT/ICD coding errors?
A: Outdated codes, wrong modifiers, lack of specificity, omitted required modifiers, upcoding, or unbundling errors.

Q: How long do I have to submit claims?
A: Varies by payer—commonly 30–90 days for commercial payers. Medicare and federal programs have separate rules.

Q: Can patients challenge errors?
A: Yes. Laws like the No Surprises Act allow itemized bill review, dispute, and appeal.

Q: How often should internal audits be performed?
A: Monthly for high-volume codes/denials, quarterly for broader workflow, or more frequently with coding changes.

Q: Is outsourcing billing always better?
A: Not necessarily. Outsourced billing can help but requires oversight, communication, and transparency.


Legal Implications

Medical billing mistakes are not just financial—they can trigger serious legal consequences for providers and practices:

  • False Claims Act (FCA) Violations: Submitting incorrect or fraudulent claims—intentionally or unintentionally—can result in heavy fines, repayments, and even criminal liability.
  • Audit Exposure: Payers, including Medicare and Medicaid, frequently audit practices for coding accuracy, documentation completeness, and billing compliance. Repeated errors can escalate to formal investigations.
  • Regulatory Non-Compliance: Billing errors in telehealth, mental health, or remote patient monitoring can violate state or federal regulations, triggering penalties or recoupments.
  • Patient Liability: Incorrect billing may shift costs unfairly to patients, which can result in complaints, lawsuits, or regulatory scrutiny under laws like the No Surprises Act.

Maintain robust documentation, compliance audits, and denial tracking to reduce legal exposure.


Practical Considerations

Implementing an effective medical billing strategy requires balancing efficiency, accuracy, and resources:

  • Staff Training & Expertise: Ensure coders, billing staff, and providers are regularly trained on updated codes, payer rules, and documentation requirements.
  • Workflow Standardization: Clearly define roles, responsibilities, and review processes to minimize errors and duplication.
  • Technology Integration: Use EHRs, claim scrubbing, and AI tools to automate repetitive tasks but retain human oversight for complex cases.
  • Denial Management Systems: Track denials and root causes to prevent recurring mistakes and reduce revenue leakage.
  • Patient Communication: Provide clear, accurate, and timely billing information to maintain trust and reduce disputes.

Combine human expertise with technology for the most efficient, accurate billing system.


Ethical Considerations

Beyond legality and practicality, medical billing is a matter of ethics:

  • Patient-Centered Care: Accurate billing protects patients from unexpected costs and financial harm.
  • Transparency: Practices should maintain clear and honest billing statements, allowing patients to review charges and understand coverage.
  • Fairness: Avoid upcoding, unbundling, or inflating charges to increase reimbursement—these practices violate ethical standards and risk legal action.
  • Accountability: Ensure all team members take responsibility for errors and follow up to correct mistakes promptly.
  • Professional Integrity: Uphold ethical standards even under financial or operational pressure, fostering trust among patients, staff, and payers.

Ethical billing strengthens patient trust, compliance, and professional reputation, which directly impacts long-term success.


Real-Life Stories & Lessons

  • Rural Clinic: Automated EMR updates failed; $250K lost due to outdated codes. Solution: code-update owner, verification before submission.
  • Hospital Telehealth: Generic E/M coding caused denials. Solution: central crosswalk and updated telehealth coding guidance.
  • Patient Billing Error: Misassigned provider location led to wrong charge. Solution: verify provider location and insurance network mapping.

Tools, Metrics, and Resources for Medical Billing Excellence

1. Essential Tools

  • Claim Scrubbing Software: Identifies coding errors, duplicate charges, missing modifiers, and eligibility issues before claims are submitted. Examples: Waystar, Availity, Change Healthcare.
  • Electronic Health Records (EHR) Integration: Streamlines documentation, ensures coding consistency, and links clinical notes directly to billing codes. Examples: Epic, Cerner, Athenahealth.
  • AI-Powered Denial Management: Predicts denials, tracks trends, and provides actionable recommendations. Examples: Olive AI, nThrive, ZirMed.
  • Eligibility & Verification Tools: Real-time checks reduce rejected claims and improve cash flow. Examples: CoverMyMeds, Experian Health.
  • Audit Dashboards: Track submission accuracy, denial rates, and claim turnaround times to monitor team performance.

2. Key Metrics to Monitor

  • Claim Denial Rate: Percentage of claims denied on first submission. Target: <5% for most practices.
  • Days in Accounts Receivable (AR): Measures the average time to collect payment. Lower AR indicates efficient billing.
  • First-Pass Resolution Rate (FPRR): Percentage of claims paid correctly the first time. Higher FPRR reduces rework and revenue loss.
  • Top Denial Reasons: Categorize denials to identify recurring issues and focus corrective action.
  • Coding Accuracy Rate: Tracks errors in CPT, ICD-10, and HCPCS coding. Target: 95–98% accuracy.
  • Patient Billing Complaints: Number and nature of complaints related to incorrect billing. Lower numbers indicate better communication and accuracy.

3. Key Resources

  • CMS (Centers for Medicare & Medicaid Services): Official coding updates, payer rules, and compliance guidance (cms.gov).
  • AAPC (American Academy of Professional Coders): Training, certification, coding updates, and webinars (aapc.com).
  • AMA CPT Resources: Latest CPT code books and telehealth updates (ama-assn.org).
  • State Medical Associations: State-specific billing regulations, insurance requirements, and telehealth policies.
  • Professional Networking Groups: LinkedIn groups, industry forums, and revenue cycle management communities provide peer insights and case studies.

 

Combine tools, metrics, and resources for a proactive approach:

  1. Track metrics like denial rates and FPRR.
  2. Use tools to detect and prevent errors in real time.
  3. Leverage resources for ongoing education and compliance updates.

By aligning technology, performance metrics, and knowledge resources, practices can reduce errors, improve revenue, and strengthen patient trust.


Step-by-Step Guide to Prevent Medical Billing Mistakes

Step 1: Conduct a Billing Audit

  • Action: Review recent claims for coding errors, duplicate charges, missing documentation, and denials.
  • Why: Identifies recurring issues and highlights areas for improvement.
  • Tip: Focus on high-volume codes and telehealth services, which often have the highest error rates.

Step 2: Update Coding Knowledge

  • Action: Ensure your team is using the latest CPT, ICD-10, and HCPCS codes.
  • Why: Outdated codes are a leading cause of claim denials.
  • Tip: Subscribe to payer updates and schedule quarterly internal code-review sessions.

Step 3: Standardize Documentation Practices

  • Action: Implement structured templates and checklists for clinical documentation.
  • Why: Supports medical necessity and proper coding.
  • Tip: Align providers and coders on documentation standards to reduce errors.

Step 4: Verify Patient Information & Eligibility

  • Action: Confirm patient demographics, insurance coverage, and policy changes at multiple touchpoints (registration, check-in, pre-billing).
  • Why: Prevents rejected claims due to invalid or outdated information.
  • Tip: Use real-time eligibility tools to save time and reduce denials.

Step 5: Track Deadlines & Timely Filing

  • Action: Maintain a centralized calendar for payer-specific claim deadlines.
  • Why: Missing filing windows can result in permanent revenue loss.
  • Tip: Automate alerts for upcoming deadlines and assign accountability to specific staff members.

Step 6: Implement Denial Management & Appeals

  • Action: Track denials, analyze trends, and implement a structured appeals process.
  • Why: Repeated denials indicate systemic problems and lost revenue.
  • Tip: Create appeal templates and assign staff to review and address common denial reasons.

Step 7: Use Technology Wisely

  • Action: Leverage claim scrubbing tools, AI software, and audit dashboards.
  • Why: Detect errors before submission and improve efficiency.
  • Tip: Remember, automation supports humans—it doesn’t replace oversight.

Step 8: Provide Ongoing Staff Training

  • Action: Conduct regular training sessions for coders, billing staff, and providers.
  • Why: Ensures everyone stays current on coding updates, payer policies, and workflow improvements.
  • Tip: Include real-life case studies of billing errors to reinforce learning.

Step 9: Foster Communication Across Teams

  • Action: Encourage weekly or monthly meetings between billing, coding, and clinical teams.
  • Why: Miscommunication is a frequent cause of errors.
  • Tip: Use these meetings to review denials, new coding updates, and process improvements.

Step 10: Plan for the Future

  • Action: Monitor emerging trends in telehealth, AI, patient-centric billing, and regulatory changes.
  • Why: Staying proactive reduces errors and positions your practice for long-term success.
  • Tip: Assign a compliance or innovation lead to track changes and train staff accordingly.

 

Following these steps systematically can help your practice reduce errors, improve revenue, maintain compliance, and strengthen patient trust.


Final Thoughts

Medical billing mistakes aren’t just financial—they erode patient trust, compliance, and team morale. But practical, tactical actions can prevent most errors: communicate, audit, train, monitor, and use technology wisely.

Sara’s clinic turned around with small, consistent changes. Your team can too.


Future Outlook: What’s Next for Medical Billing

The landscape of medical billing is evolving rapidly. With AI-driven claim scrubbing, telehealth expansion, and value-based care models, practices will need to adapt to both technological advances and regulatory changes.

Key trends to watch:

  • AI and Automation: Intelligent software can detect coding errors, flag duplicates, and predict denials before claims are submitted. However, human oversight remains essential to ensure accuracy and compliance.
  • Telehealth Billing Growth: Telehealth codes are expanding and constantly updated. Providers must stay current to avoid costly errors and missed reimbursements.
  • Regulatory Evolution: Policies around mental health, remote patient monitoring, and surprise billing are changing frequently. Staying proactive with payer communications and compliance updates will be critical.
  • Patient-Centric Billing: Transparency tools and digital patient engagement platforms are on the rise. Patients will increasingly expect clear, accurate, and real-time billing information, which can reduce disputes and improve trust.

Practices that embrace these trends while maintaining robust auditing, documentation, and training practices will be better positioned to reduce errors, improve revenue, and strengthen patient relationships.

Takeaway: The future of medical billing is tech-enabled, patient-focused, and compliance-driven. Being proactive today will safeguard your practice and prepare your team for the challenges of tomorrow.


Call to Action

Get Involved. Review a billing process this week. Share a denial trend with your team. Implement one practical change. Be part of something bigger. Raise your voice. Claim your spot in shaping accurate, transparent medical billing. Let’s do this.


References

  1. Top Medical Billing Mistakes and How to Avoid Them — EmergerCM, 10 September 2025 (emergercm.com)
  2. 2025’s Medical Billing Pain Points: Insights and Solutions for Billers — Tebra (tebra.com)
  3. Medical Billing Mistakes Costing Healthcare Providers Millions in 2025 — Pena4 (pena4.com)

About the Author

Dr. Daniel Cham is a physician and medical consultant with expertise in medical tech consulting, healthcare management, and medical billing. He delivers practical insights to help professionals navigate complex healthcare challenges. Connect with Dr. Cham on LinkedIn: linkedin.com/in/daniel-cham-md-669036285


Disclaimer / Note

This article provides an overview and does not constitute legal or medical advice. Readers should consult professionals in relevant fields for guidance.


Hashtags

#MedicalBilling #RevenueCycleManagement #CodingErrors #ClaimDenials #HealthcareCompliance #PatientBilling #MedicalPracticeManagement #HealthTech #BillingAudit #MedicalDocumentation

 

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