G3001 HCPCS code: Administration and supply of tositumomab, 450 mg
G3001 is the HCPCS Level II code for administration and supply of tositumomab, 450 mg. CMS terminated G3001 on 2016-12-31; do not bill it for later dates of service. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case.
Code details
| Field | Value |
|---|---|
| Section | G codes — Procedures and professional services (temporary) |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 13 |
| BETOS category | T2D |
| Added | 2003-07-01 |
| Last action effective | 2017-01-01 |
| Terminated | 2016-12-31 |
What changed for G3001
- 2003-07-01: G3001 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 G3001?
G3001 is the HCPCS Level II code for administration and supply of tositumomab, 450 mg. Short descriptor: "Admin + supply, tositumomab".
Does Medicare cover G3001?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Related G30 codes
- G3002 — Chronic pain management and treatment, monthly bundle including, diagnosis; assessment and monitoring; administration of a validated pain rating scale or tool; the development, implementation, revision, and/or maintenance of a person-centered care plan that includes strengths, goals, clinical needs, and desired outcomes; overall treatment management; facilitation and coordination of any necessary behavioral health treatment; medication management; pain and health literacy counseling; any necessary chronic pain related crisis care; and ongoing communication and care coordination between relevant practitioners furnishing care, e.g. physical therapy and occupational therapy, complementary and integrative approaches, and community-based care, as appropriate. required initial face-to-face visit at least 30 minutes provided by a physician or other qualified health professional; first 30 minutes personally provided by physician or other qualified health care professional, per calendar month. (when using g3002, 30 minutes must be met or exceeded.)
- G3003 — Each additional 15 minutes of chronic pain management and treatment by a physician or other qualified health care professional, per calendar month. (list separately in addition to code for g3002. when using g3003, 15 minutes must be met or exceeded.)
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Next steps
- Run a reimbursement report for a device billed under G3001
- Watch G3001 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G3001
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.