HCPCS code J3590: Unclassified biologic, no product-specific code2026 Medicare rate & RVUs in Louisiana
J3590 reports a biologic without a more specific HCPCS code when Medicare coverage is established and no product-specific code applies.
CMS doesn’t publish an office rate for J3590 in Louisiana.
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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On this page 9 sections
What J3590 covers
J3590 is an unclassified HCPCS Level II code for a biologic that lacks a more specific HCPCS code. It identifies no particular product, dose, route, or clinical use. Physicians and suppliers may report it for a Part B biologic furnished in settings such as physician offices.
CMS excludes J3590 from the physician fee schedule under status E. When Medicare covers the biologic, payment is made through another method; CMS identifies it as a Part B drug generally paid using its quarterly Average Sales Price drug pricing files. The Medicare contractor determines coverage. J3590 does not identify a standard dose per unit, so it does not provide a universal conversion from milligrams or another dose measure to billing units.
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 J3590 pays more and less in Louisiana
| Payment locality | Office | Facility |
|---|---|---|
| New Orleans, LA | Unavailable | Unavailable |
| Rest of Louisiana | Unavailable | Unavailable |
How the J3590 rate is calculated
Each of J3590’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 · J3590
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 J3590
J3590 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 · J3590
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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J3590 isn’t priced in this setting.
J3590 compared with similar codes
Compare codes · National
J3590 vs J3490 vs J9999: Medicare rates
How to choose
- J3490Unclassified drugNo drug-specific code
- J3490 is the unclassified drug code; J3590 is for unclassified biologics.
- J9999Antineoplastic drugNot otherwise classified
- J9999 is for unclassified antineoplastic drugs. J3590 is for unclassified biologics when a more specific code, such as an applicable antineoplastic code, does not apply.
J3590 billing questions
When should a biller choose J3590 over a product-specific biologic code?
Use J3590 when the biologic lacks a more specific HCPCS code. If a product-specific code applies, use that code instead.
Does J3590 represent a set number of milligrams?
No. J3590 does not identify a specific drug or dose amount, so it does not provide a universal milligram-to-unit conversion.
How does Medicare treat J3590?
CMS excludes J3590 from the physician fee schedule under status E. When Medicare covers the biologic, payment is made through another method; the HCPCS pricing method identifies it as a Part B drug generally paid through CMS quarterly ASP drug pricing files.
Does reporting J3590 guarantee Medicare coverage?
No. The Medicare contractor determines coverage.
Is J3590 a product-specific biologic code?
No. It is an unclassified biologic code and does not identify a particular product, dose, route, or clinical use.
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
Fee sheets · Coming soon
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