G0173 HCPCS Level II code: Linear accelerator based stereotactic radiosurgery, complete course of therapy in one session
CMS terminated G0173: its last date of service was Dec 31, 2014. It stays here for looking up older claims; newer services need a current code.
Official description
G0173Linear accelerator based stereotactic radiosurgery, complete course of therapy in one session
Short description: Linear acc stereo radsur com
HCPCS · United States
Notes for G0173
As CMS prints them, with any note G0173 takes from the headings above it.
Note
- CMS processing note 0094: CODES G0173 AND G0174 REPLACE CPT 61793 ON THE OPPS PAYMENT METHODOLOGY. CODES MAY NOT BE USED IN MEDICARE PHYSICIAN FEE SCHEDULE SYSTEM.
Medicare details
The indicators CMS publishes with G0173 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Special coverage instructions apply
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Surgery
- BETOS category
- Ambulatory procedures - other
- Added
- Aug 1, 2000
- Terminated after
- Dec 31, 2014
Where G0173 sits
- 1G codesProcedures and professional services
- 2Terminated G0173Linear accelerator based stereotactic radiosurgery, complete course of therapy in one session
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
Is HCPCS code G0173 still valid?
No. CMS terminated G0173; its last date of service was Dec 31, 2014. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover G0173?
CMS lists G0173’s Medicare coverage as “Special coverage instructions apply” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. 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.
Codes beside G0173
All G codesG0161Services performed by a qualified speech-language pathologist, in the home health setting, in the establishment or delivery of a safe and effective speech-language pathology…G0162Skilled services by a registered nurse (rn) for management and evaluation of the plan of care; each 15 minutes (the patient's underlying condition or complication requires an rn…G0163Skilled services of a licensed nurse (lpn or rn) for the observation and assessment of the patient's condition, each 15 minutes (the change in the patient's condition requires…G0164Skilled services of a licensed nurse (lpn or rn), in the training and/or education of a patient or family member, in the home health or hospice setting, each 15 minutesG0166External counterpulsation, per treatment sessionG0168Wound closure utilizing tissue adhesive(s) onlyG0175Scheduled interdisciplinary team conference (minimum of three exclusive of patient care nursing staff) with patient presentG0176Activity therapy, such as music, dance, art or play therapies not for recreation, related to the care and treatment of patient's disabling mental health problems, per session (45…G0177Training and educational services related to the care and treatment of patient's disabling mental health problems per session (45 minutes or more)G0179Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home…G0180Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home…G0181Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring…