G6001 HCPCS code: Ultrasonic guidance for placement of radiation therapy fields
G6001 is the HCPCS Level II code for ultrasonic guidance for placement of radiation therapy fields. CMS terminated G6001 on 2025-12-31; do not bill it for later dates of service. In 2024 Medicare paid an average of $139.45 per service for G6001 across 368,551 services. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. Medicare volume rose 92% from 2022 to 2024 (192,065 to 368,551 services). In 2024, about 584 clinicians billed Medicare for G6001 for 22,000 beneficiaries; California, Florida, Texas accounted for 30% of services.
Code details
| Field | Value |
|---|---|
| Section | G codes — Procedures and professional services (temporary) |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 13 |
| BETOS category | I3F |
| Added | 2015-01-01 |
| Last action effective | 2026-01-01 |
| Terminated | 2025-12-31 |
Who bills G6001 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 584 |
| Medicare beneficiaries | 22,000 |
| States with claims | 41 |
| Share of services in top 3 states (California, Florida, Texas) | 30% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for G6001, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 192,065 | 11,673 | $171.66 | $136.91 |
| 2023 | 255,889 | 15,595 | $173.04 | $137.47 |
| 2024 | 368,551 | 22,000 | $174.57 | $139.45 |
States with the most G6001 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| California | 41,271 | $159.25 |
| Florida | 39,325 | $138.33 |
| Texas | 30,312 | $136.99 |
| Illinois | 21,572 | $132.87 |
| New Jersey | 18,881 | $165.48 |
What changed for G6001
- 2015-01-01: G6001 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code G6001?
G6001 is the HCPCS Level II code for ultrasonic guidance for placement of radiation therapy fields. Short descriptor: "Echo guidance radiotherapy".
How much does Medicare pay for G6001?
In 2024, the average Medicare payment was $139.45 per service (average allowed $174.57).
Does Medicare cover G6001?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
Related G60 codes
- G6002 — Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy
- G6003 — Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: up to 5 mev
- G6004 — Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: 6-10 mev
- G6005 — Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: 11-19 mev
- G6006 — Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: 20 mev or greater
- G6007 — Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: up to 5 mev
- G6008 — Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: 6-10 mev
- G6009 — Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: 11-19 mev
- G6010 — Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: 20 mev or greater
- G6011 — Radiation treatment delivery, 3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; up to 5 mev
- G6012 — Radiation treatment delivery, 3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev
- G6013 — Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev
Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.
Next steps
- Run a reimbursement report for a device billed under G6001
- Watch G6001 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G6001
Sources: CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.