HCPCS code J1447: Tbo-filgrastim, per 1 mcg2026 Medicare rate & RVUs in Maryland
Tbo-filgrastim is a granulocyte colony-stimulating factor reported per microgram when administered to reduce chemotherapy-associated severe neutropenia.
CMS doesn’t publish an office rate for J1447 in Maryland.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What J1447 covers
Tbo-filgrastim (Granix) is a granulocyte colony-stimulating factor used to reduce the duration of severe neutropenia in patients with nonmyeloid cancers receiving myelosuppressive chemotherapy. Oncology clinicians commonly administer it by subcutaneous injection in outpatient cancer clinics and infusion settings. It stimulates neutrophil production as supportive care during chemotherapy. J1447 identifies the drug product rather than the administration service.
Each unit represents 1 mcg of tbo-filgrastim; report units based on the amount administered. CMS excludes J1447 from the physician fee schedule (status E). When Medicare covers the drug, it generally pays it as a Part B drug using CMS quarterly Average Sales Price drug pricing files. Special Medicare coverage instructions apply to the product.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
Where J1447 pays more and less in Maryland
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Baltimore area, MD | Unavailable | Unavailable |
| Rest of Maryland | Unavailable | Unavailable |
| Washington, DC area | Unavailable | Unavailable |
How the J1447 rate is calculated
Each of J1447’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · J1447
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for J1447
J1447 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.
Place of service · J1447
Which rate does Medicare pay?
The POS code on the claim line (CMS-1500 box 24B).
POS 11 · non-facility rate · national
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J1447 isn’t priced in this setting.
J1447 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- J1442Filgrastim injectionPer 1 microgram
- J1447 is specific to tbo-filgrastim; J1442 identifies filgrastim and excludes biosimilars. Match the code to the product given.
- J1449Eflapegrastim injectionPer 0.1 mg
- J1449 identifies eflapegrastim-xnst, a different G-CSF product. J1447 is for tbo-filgrastim.
- J2506Pegfilgrastim injectionPer 0.5 mg
- J2506 identifies pegfilgrastim, a long-acting G-CSF. J1447 identifies tbo-filgrastim; these are not interchangeable product codes.
J1447 billing questions
How is J1447 different from J1442?
J1447 identifies tbo-filgrastim. J1442 identifies filgrastim and excludes biosimilars, so select the code that matches the product administered.
What does one unit represent?
One unit represents 1 mcg of tbo-filgrastim. Report units based on the total amount administered.
Does J1447 include the injection administration?
J1447 identifies the drug product, not the act of administering it.
How does Medicare treat J1447?
CMS excludes it from the physician fee schedule with status E. When Medicare covers it, it generally pays under the Part B drug method using quarterly ASP drug pricing files; special Medicare coverage instructions apply.
What should the record support?
Record the tbo-filgrastim product and the amount administered so the code and units reflect what was given.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
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