Medicare Claims Errors: Part B Practices Still Making Modifier, Timely Filing Mistakes, One MAC Says

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Note:  The following article synopsis was NOT provided by AAPC. It was created by Find-A-Code/innoviHealth.

Article Overview

This article summarizes a Medicare Part B MAC webinar on common claim submission errors that can cause denials or delays. It focuses on broad categories of guidance around modifier use, local coverage decision resources, supplemental instruction articles, and timely filing rules. The content is most relevant to billing staff, coders, and compliance teams working with Medicare Part B claims and MAC-specific guidance.

Why This Topic Matters

Understanding MAC guidance and filing deadlines helps practices reduce avoidable denials, delays, and payment responsibility issues.

Article Sections

  1. Use Modifiers Properly

    This section discusses general concerns about modifier use in Part B claims and emphasizes the need for accurate application of selected modifiers in routine billing situations.

  2. Keep LCDs at Top of Mind

    This section explains the role of Medicare coverage resources maintained by MACs, including local coverage decisions and supplemental instruction articles, and why they matter for billing research.

  3. Consider Timely Filing Rules

    This section covers Medicare Part B claim filing timeliness guidance, including the shift to a one-year filing framework and the impact of missed deadlines on payment responsibility.

What You Will Learn

  • How a MAC webinar frames common Medicare Part B claim submission errors
  • Why modifier accuracy matters in routine claims processing
  • How MAC coverage resources support billing research
  • What broad timely filing issues affect Medicare Part B claims

Who Should Read This

  • Medical coders
  • Billing staff
  • Revenue cycle teams
  • Compliance professionals
  • Practice administrators

Modifiers Discussed


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