Critical Practices in Claims Submission, Fraud Control, and Medicare Payment Oversight  Introduction Insurance compani

Critical Practices in Claims Submission, Fraud Control, and Medicare Payment Oversight

 Introduction

Insurance companies reject the claims made by patients within the health care billing industries due to varied causes with most of them either based on the inaccuracies on claims or failure of compliance. These reasons may consist of the absence or improper identifiers of patients, use of invalid procedure or diagnosis codes, deficiency of medical necessity documentation, utilization of max frequency or benefit limits, or Billing of services that are not included in the policy (or have already been paid). The insurers can also reject claims because of timeliness: unacceptable late filing during allotted periods or because authorization was not received earlier. Refuses are also occasioned by coordination-of-benefits and eligibility mistake as well as duplicate billing.

The standards of transactions and code set of HIPAA are directly applicable during the filing of insurance claims due to HIPAAs requirement that the covered entities should employ standardized electronic format (i.e. X12 837 (claims) and X12 835 (remittance advice) and use pre-determined codes (CPT, ICD, HCPCS, revenue codes) (AMA, 2009). The rules will make sure that the insurers and providers can speak the same electronic language, minimize the use of proprietary codes and facilitate electronic processing and editing. Healthcare providers that file claims should follow the code sets required under the HIPAA, otherwise their claim can be rejected, denied, or classified under other means of manual processing (Cigna, 2025). Similarly, the payers are required to respond in the standard format and codes (e.g. up the use of the adjustment reason codes in the 835).

The False Claims Act (FCA) is a law that peripherally concerns fraud and abuse in claims billing and classifies the violation in different fashions (HHS OIG, 2021). The two examples include up coding and overbilling and payment of non-rendered services (phantom billing). Up coding and overbilling refers to billing at a higher code than the delivered service (e.g. In billing a level 5 office visit, billing level 3 was warranted). Phantom billing is a situation of billing a procedure or service to the patient that the patient never had. An illustration is where a provider may charge Medicare with a surgical operation that has not been done. These contraventions are punishable with a civil penalty, triple the damages, and even exclusion to federal health programs (HHS OIG, 2021).

CMS administers the Medicare payments through two major categories of contractors including Recovery auditor contractor (RACs) and Medicare Administrative contractor (MACs). The RACs conduct the post payment reviews to detect improper payments, such as overpayments and underpayments, and recoup the overpaid sums of money (CMS, 2025). RACs are automated and intricate reviews, demand documentation, and send out demand letters; requested claims and recoup funds will have to be properly warranted by MACs through offsets or repayments plans (CMS Program Integrity Manual, 2024). MACs process routine claims, adjudicate them, and give out remittance advice (CMS, 2024).

A remittance advice (RA) and a description of benefits (EOB) are both types of financial correspondence that address different audiences and have different purposes. A RA (particularly in the 835 standard of Medicare) is provided to the providers and consists of line-level adjustment reason codes and group codes, allowing providers to reconcile payments and understand the underpaid or denied items (CMS, 2024). EOB is sent to patients or beneficiaries to clarify what was covered, what the insurance has paid, what is the responsibility of the patient and why it was denied or amended. Both documents elucidate the mistakes and on the RA a provider can view which lines are disapproved or modified and the reasons to either appeal or file another one. In an EOB, a patient is able to identify billing errors, charges, or services that they did not receive. The content can also be similar, the RA is more technical and code-based, whereas the EOB is easier to understand and more of a narrative.

Overall, proper submission of claims necessitates strict compliance with HIPAA code and transaction requirement; insurers reject claims based on errors in data, eligibility, or coverage; FCA is concerned with fraudulent billing like up coding or phantom services; CMS is using the RACs and MACs to monitor and correct faulty Medicare payment claims; and both RAs and EOBs assist their recipients in identifying and correcting errors in their claims. The insight into these processes will help to provide a more effective reimbursement and compliance to the health care billing.

References

ACEP. (2021). Recovery Audit Contractor (RAC) FAQ.

American Medical Association. (2009). The HIPAA transactions and code set rule (AMA practice management).

Centers for Medicare & Medicaid Services. (2024). Health care payment and remittance advice.

Centers for Medicare & Medicaid Services. (2025). Medicare Fee-for-Service Recovery Audit Program.

Health and Human Services Office of Inspector General. (2021). Medicare fraud & abuse: Prevent, detect, report.