Upcoding is billing for a more serious or complex medical service than what was actually provided, and it can directly inflate your copay or coinsurance bill. Healthcare providers use billing codes to describe what service they delivered; submitting a code for a higher complexity level generates a larger insurance claim and, in turn, a larger patient share. This practice is illegal under federal law, but it persists in healthcare settings across the country. Understanding how upcoding works, where it happens, and what you can do about it can help protect your medical bills and your health record.
Table of Contents
- How Billing Codes Control Your Bill
- The Dollar Impact on Your Bill
- Documented Cases and Federal Enforcement
- Can You Spot Upcoding on Your Bill?
- Your Legal Rights
How Billing Codes Control Your Bill
medical services are assigned CPT codes that reflect the complexity, risk, and time involved in care. A routine office visit codes differently from a comprehensive evaluation; an automated emergency department screening codes differently from a full critical assessment.
The code determines the insurance payment—and your share of that payment. University of Colorado Health paid $23 million in 2024 to settle allegations that its automated billing system systematically coded emergency department visits at the highest complexity level whenever patient vital checks exceeded the length of stay, regardless of actual medical decision-making complexity. The system inflated visit complexity on a routine basis, showing how upcoding can be built into automated billing workflows.
The Dollar Impact on Your Bill
Upcoding directly increases what you owe out of pocket. When a provider bills a visit at a higher complexity level than actually performed, patients' copays or coinsurance amounts increase accordingly; for example, billing a routine follow-up visit (level 2–3) as a comprehensive evaluation (level 4–5) can inflate the patient's share by over $100 per visit.
Inflated claims can also cause patients to exhaust annual insurance limits faster, leaving them without coverage for legitimate future care, and can populate a patient's medical record with conditions they do not have, potentially affecting future treatment decisions or life insurance eligibility. This secondary harm can persist long after the inflated bill is paid.
Documented Cases and Federal Enforcement
Upcoding is not theoretical, and providers face significant penalties when caught. TeamHealth Holdings settled for $60 million for upcoding, Nextcare Inc. for $10 million for overbilling through inflated visit complexity and unnecessary services, and an endocrinologist for $447,000 for billing routine blood draws as critical care procedures.
These settlements show that upcoding occurs across different settings—emergency departments, urgent care clinics, and specialty practices. CMS has blocked or recovered $1.6 billion in suspected fraudulent Medicare laboratory payments alone, with labs found to be upcoding, billing for services not rendered, and testing for patients with no established provider relationship. Federal enforcement suggests the practice is systemic enough to warrant your attention.
Can You Spot Upcoding on Your Bill?
Detection is difficult at the individual patient level, but you can take steps to review your bill. Request your itemized bill and your medical record for the visit in question, then compare what was documented against the complexity level that was billed. If a routine visit or screening was coded as a comprehensive evaluation, request a written explanation from your provider.
Contact your insurance company and ask them to review the claim against the medical record. If you find a discrepancy, you can file an appeal or complaint with your state attorney general.
Your Legal Rights
Upcoding violates the False Claims Act, which prohibits knowingly submitting claims with incorrect billing codes for payment to government insurers. Providers found guilty of systematic upcoding face federal penalties, exclusion from Medicare and Medicaid, and mandatory refunds. If you believe you've been overbilled due to upcoding, you can file a complaint with the HHS Office of Inspector General.
Your state attorney general's office may also investigate billing fraud. Ask your insurance company to review the claim; many plans have fraud investigation units that can trace suspicious billing patterns.