HCPCS code J8541: Hemady dexamethasone, per 0.25 mg2026 Medicare rate & RVUs in Guam
Reports oral Hemady, a dexamethasone product used in multiple myeloma regimens, with each billing unit representing 0.25 mg.
CMS doesn’t publish an office rate for J8541 in Guam.
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 J8541 covers
J8541 identifies oral Hemady, a branded dexamethasone product used with other antimyeloma medicines to treat multiple myeloma. Oncology practices report the drug by the amount furnished. The code distinguishes Hemady from general oral dexamethasone and injectable dexamethasone; the unit count reflects the drug amount, not the number of tablets or doses.
CMS excludes J8541 from the physician fee schedule under status E. When Medicare covers it, payment is made under another method. HCPCS assigns it Part B drug pricing, generally based on CMS quarterly Average Sales Price files, and coverage is left to the Medicare contractor’s judgment. Each unit represents 0.25 mg, so 1 mg corresponds to four units. Report units based on the amount furnished.
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.
J8541 in Hawaii, Guam, HI
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam, HI | Unavailable | Unavailable |
How the J8541 rate is calculated
Each of J8541’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 · J8541
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 J8541
J8541 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 · J8541
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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J8541 isn’t priced in this setting.
J8541 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- J8540Oral dexamethasonePer 0.25 mg
- J8541 identifies Hemady specifically. J8540 is for oral dexamethasone when the furnished product is not Hemady.
- J1100Dexamethasone injectionPer 1 mg
- J1100 is for injectable dexamethasone sodium phosphate; J8541 is for oral Hemady.
- J9041Bortezomib injectionPer 0.1 mg
- J9041 identifies bortezomib, a separate antimyeloma drug. It is not a dexamethasone code.
J8541 billing questions
When should a claim use J8541 instead of J8540?
Use J8541 for oral Hemady. J8540 identifies oral dexamethasone when the product furnished is not Hemady.
How many units represent 1 mg of Hemady?
Each unit represents 0.25 mg, so 1 mg corresponds to four units. Base reported units on the amount furnished.
Does Medicare pay J8541 under the physician fee schedule?
No. CMS assigns status E, excluding the code from the physician fee schedule. When covered, payment is under another method; HCPCS assigns Part B drug pricing, generally using ASP pricing files.
Is Hemady coverage automatic under Medicare?
No. Coverage is left to the Medicare contractor’s judgment.
Is J8541 the code for injectable dexamethasone?
No. J8541 identifies oral Hemady. J1100 identifies injectable dexamethasone sodium phosphate.
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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