G0339 HCPCS Level II code: Image-guided robotic linear accelerator-based stereotactic radiosurgery, complete course of therapy in one session or first session of fractionated treatment

G0339 is the HCPCS code for “Image-guided robotic linear accelerator-based stereotactic radiosurgery, complete course of therapy in one session or first session of fractionated treatment” in CMS’s October 2026 release, in effect from Oct 1, 2026.

Official description

G0339

Image-guided robotic linear accelerator-based stereotactic radiosurgery, complete course of therapy in one session or first session of fractionated treatment

Short description: Robot lin-radsurg com, first

HCPCS · United States

Medicare details

The indicators CMS publishes with G0339 in its October 2026 file. They describe Medicare’s handling, not another payer’s.

Medicare coverage
Carrier judgment
Medicare pricing
Physician fee schedule – Price established by carriers (e.g., not otherwise classified, individual determination, carrier discretion)
Type of service
Medical care
BETOS category
Ambulatory procedures - other
Added
Jan 1, 2004

Where G0339 sits

  1. 1G codesProcedures and professional services
  2. 2Active code G0339Image-guided robotic linear accelerator-based stereotactic radiosurgery, complete course of therapy in one session or first session of fractionated treatment

Source and release

Data release
HCPCS Level II · October 2026
Effective date
Oct 1, 2026
Publisher
CMS

This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does HCPCS code G0339 mean?

G0339 is the HCPCS code for “Image-guided robotic linear accelerator-based stereotactic radiosurgery, complete course of therapy in one session or first session of fractionated treatment” in CMS’s HCPCS Level II October 2026 release.

Does Medicare cover G0339?

CMS lists G0339’s Medicare coverage as “Carrier judgment” and its pricing as “Physician fee schedule – Price established by carriers (e.g., not otherwise classified, individual determination, carrier discretion)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.

Which HCPCS Level II release does this page use?

It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.