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ASC Coding Essentials: Understanding Facility vs. Physician Coding Differences

Presenter Bob Lathrop, CPC, CPC-I, CASCC;
Broadcast Date 6/3/2026
Time 10:00am PT / 11:00am MT / 12:00pm CT / 1:00pm ET
Presentation Length 60 minutes
Price $65 (Non-members $85)
ASC Coding Essentials: Understanding Facility vs. Physician Coding Differences Webinar

Learn more about this event

The presentation commences by establishing the foundational definition and regulatory parameters of the Ambulatory Surgery Center (ASC). An ASC is a distinct, independent healthcare entity—or a facility operated under the common ownership and control of a hospital—that operates exclusively for the purpose of providing outpatient surgical services to patients who do not require acute hospitalization. These facilities must maintain a formal agreement with the Centers for Medicare & Medicaid Services (CMS) under 42 CFR 416 Subpart B.

As surgical technologies advance and anesthetic techniques improve, the volume of high-acuity procedures transitioning from the inpatient hospital setting to the ASC environment has grown exponentially. However, this clinical migration has been accompanied by significant financial and compliance risks. According to the 2024 Medicare Fee-for-Service Supplemental Improper Payment Data, the improper payment rate for ASCs stands at a critical 14.7%, representing a projected improper payment amount of $656.3 million. The majority of these financial errors stem from insufficient documentation, totaling 58.8% of the improper payments, alongside incorrect coding applications. Consequently, the mastering of ASC facility coding requires a nuanced understanding of multiple overlapping code sets, stringent regulatory edits, and complex reimbursement methodologies that differ drastically from traditional physician professional billing.

Learning Objectives/Agenda

• Key Structural Differences Between ASC and Professional Coding
• ASC Bundling, Modifiers, and Compliance Considerations
• Surgical Specialties and CPT Knowledge for ASC Coders
• HCPCS Coding for Implants, Supplies, and Drugs
• ICD-10-CM Coding Differences in ASC Claims

Why is this topic important?

As CMS updates their Outpatient Prospective Payment System, more surgeries are moving to an ASC setting. Those in the ASC coding, billing, and compliance world must stay up to date on all surgery specialties that may be performed in a “same day” surgery setting.

Who would benefit from this topic?

• Surgery Coders
• Surgery Auditors
• ASC Billing Staff
• ASC Administrators
• ASC Business Office Managers
• Auditing companies looking to add ASC coding to their fold

Bob Lathrop, CPC, CPC-I, CASCC;

About The Author

Bob Lathrop, CPC, CPC-I, CASCC;

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Two ways to register for this event
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