Check your MAC’s rules on date of service when spanning two calendar days

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

Article Overview

This article explains payer guidance on how to report dates of service when a claim spans two calendar days, with attention to Medicare administrative contractor positions and broader CMS-related guidance. It is useful for billing staff, coders, and revenue cycle professionals who need to understand payer-specific date-of-service policies for services that cross midnight or otherwise extend over more than one day.

Why This Topic Matters

Date-of-service reporting can affect claim submission and payer processing, and the article highlights that local payer policies may differ from one another. It helps readers recognize when they need to verify contractor-specific instructions rather than relying on a single national approach.

Article Sections

  1. Payer guidance on date of service across calendar days

    Discusses differing approaches from Medicare contractors and other payers for services that continue past midnight. Emphasizes that local policy may vary and should be confirmed in writing.

  2. Examples of CMS guidance for specific service types

    Summarizes broader CMS guidance for certain categories of services and tests where date-of-service reporting is more clearly defined. Also notes situations in which the applicable date is tied to a completed event or encounter.

What You Will Learn

  • How payer guidance may differ for services that span two calendar days
  • Why local MAC policies can matter for date-of-service reporting
  • Which broad service categories may have clearer CMS reporting guidance
  • When it is important to confirm reporting rules with the payer

Who Should Read This

  • Medical coders
  • Billing staff
  • Revenue cycle professionals
  • Practice managers
  • Anesthesia billing teams

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