HCPCS Level II: Don’t Miss G Codes Your Surgery Practice May Use

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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 explains selected 2021 HCPCS Level II updates that may affect general surgery billing, especially for Medicare beneficiaries. It focuses on the broader role of HCPCS Level II, highlights changes in G codes for prolonged office/outpatient evaluation and management, virtual check-in-style services, and chronic care management, and notes how these changes may differ across Medicare and private payer policies. The piece is aimed at surgeons, coders, and billing staff who need to understand which general categories of services were affected and where payer-specific review is important.

Why This Topic Matters

Surgery practices often bill services that are not captured in CPT alone, and annual HCPCS changes can alter how common Medicare-related services are reported. Understanding the scope of the 2021 updates helps practices reduce claim errors and distinguish Medicare reporting from other payer requirements.

Article Sections

  1. Understand HCPCS Level II Basics

    Introduces HCPCS Level II at a high level and explains the broad categories of code types managed under the system. It also frames the article’s focus on G codes and their role in 2021 updates.

  2. Check Out for Changes to Office E/M Coding

    Covers 2021 changes affecting office and outpatient evaluation and management reporting, including Medicare-related updates and related payer considerations. The section also discusses virtual communication and complexity-related G codes in a general way.

  3. Master Changes to Chronic Care Management Coding

    Summarizes HCPCS Level II changes tied to chronic care management and the relationship between HCPCS and CPT updates for 2021. It addresses code deletion and add-on reporting at a broad level.

What You Will Learn

  • How HCPCS Level II fits into Medicare-related billing for services not captured by CPT
  • Which broad categories of 2021 G code updates are discussed for surgery practices
  • How office and outpatient E/M reporting changes are presented in the article
  • What general chronic care management coding changes are highlighted for 2021
  • Why payer-specific policies may matter when comparing Medicare and CPT-based reporting

Who Should Read This

  • General surgery practices
  • Medical coders
  • Billing staff
  • Revenue cycle personnel
  • Physician practice managers
  • Healthcare reimbursement professionals

Codes Discussed


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