J9261
J9261 – Injection, nelarabine, 50 mg · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 23 NDCs crosswalked per 50 MG $65.407/unit ASP+6%
📋 J9261 summary
J9261 is a HCPCS Level II J-code used to bill nelarabine, 50 mg, billed per 50 MG. The number of billing units to report depends on the dose administered and the NDC/package billed — use the calculator below.
Brand names associated with J9261: Arranon*, Arranon, Nelarabine
Code J9261
Billing unit 50 MG Payment limit $65.407/unit NDC-Crosswalk 23
Quarter Q3 2026
RxCUI Atlas Trace the drug concept →
⚠ An NDC↔HCPCS crosswalk and a published payment limit do not guarantee payer coverage or payment. Always verify the current payer policy and claim format before billing.
🗂️ Key billing facts
HCPCS codeJ9261
DescriptorInjection, nelarabine, 50 mg
Billing unit50 MG
Payment limit / unit$65.407
Est. ASP / unit$61.705 est.
Mapped NDCs23
Data periodQ3 2026
Last updated2026-08-20
💊 About Nelarabine Injection DRUG GUIDE
Nelarabine injection (brand name Arranon) is used to treat two aggressive blood cancers: T-cell acute lymphoblastic leukemia (T-ALL) and T-cell lymphoblastic lymphoma (T-LBL).
It is approved for adult and pediatric patients age 1 year and older whose disease has not responded to — or has come back after — at least two prior chemotherapy regimens.Nelarabine injection may also be given in combination with multi-agent chemotherapy as part of treatment for newly diagnosed T-ALL and T-LBL in certain settings, as studied in clinical trials.
Clinical overview from our editorial drug guide for Nelarabine Injection. For billing reference, see the sections above.
🧾 Billing & reimbursement HCPCS · CMS · EFF. Q3 2026
📅 Payment limits effective Q3 2026 — from the CMS Medicare Part B Payment Limit File (revised quarterly).
Medicare payment limit / unit
$65.407
Est. ASP / unit
$61.705 est.
Est. after 2% sequester
$64.099
HCPCS dosage
50 MG
The CMS payment limit is the Medicare Part B drug allowance (ASP + 6%, statutory). After the 2% federal sequester the effective payment is ≈ ASP + 4.3%; estimated ASP = payment limit ÷ 1.06. Source: CMS Medicare Part B Payment Limit File (quarterly), Q3 2026.
Full HCPCS code details (official CMS record)
Long descriptionInjection, nelarabine, 50 mg
CoverageC — Carrier/MAC judgment
Pricing indicator51 — Drug — priced under the ASP methodology
Type of service1 — Medical care
BETOS-2O1E
ASC payment groupYY
Action codeN — No maintenance this year
Effective date2007-01-01
Date added2007-01-01
Source: CMS HCPCS Level II code file (imported via admin).
🧮 Dosing & billing-units calculator HCPCS UNITS
One billing unit of J9261 = 50 mg. Enter a regimen to convert dose → billing units and project a full course.
Billing units = dose ÷ HCPCS unit size. Most payers require whole units — round per the payer's policy. “Est. Medicare pay” uses the current payment limit. For single-dose vials, drug discarded after administration may be separately billable with modifier JW (JZ when none is discarded) where allowed. Always verify payer-specific rounding before billing.
🔁 NDCs that bill under J9261 WITH EST. MEDICARE PAY
23 NDCs map to J9261. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($65.407/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 00078-0683-61 | Arranon nelarabine 5 mg/mL INJECTION | Novartis | 50 mL in 1 VIAL (0078-0683-61) | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 25021-0259-50 | Nelarabine 5 mg/mL INJECTION, SOLUTION | Sagent | 1 VIAL in 1 CARTON (25021-259-50) / 50 mL... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 25021-0259-51 | Nelarabine 5 mg/mL INJECTION, SOLUTION | Sagent | 6 VIAL in 1 CARTON (25021-259-51) / 50 mL... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 39822-0650-01 | Nelarabine 5 mg/mL INJECTION | XGen | 1 VIAL in 1 CARTON (39822-0650-1) / 50 mL... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 39822-0650-06 | Nelarabine 5 mg/mL INJECTION | XGen | 6 VIAL in 1 CARTON (39822-0650-6) / 50 mL... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 43598-0142-06 | Nelarabine 5 mg/mL INJECTION | Dr. | 6 VIAL, SINGLE-DOSE in 1 CARTON (43598-142... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 43598-0142-11 | Nelarabine 5 mg/mL INJECTION | Dr. | 1 VIAL, SINGLE-DOSE in 1 CARTON (43598-142... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 62332-0813-50 | NELARABINE 5 mg/mL INJECTION | Alembic | 1 VIAL in 1 CARTON (62332-813-50) / 50 mL... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 66758-0165-94 | Arranon nelarabine 5 mg/mL INJECTION | Sandoz | 1 VIAL in 1 CARTON (66758-165-94) / 50 mL... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 70121-1743-04 | Nelarabine 5 mg/mL INJECTION | Amneal | 6 VIAL, SINGLE-DOSE in 1 CARTON (70121-174... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 70710-1726-01 | Nelarabine 5 mg/mL INJECTION | Zydus | 1 VIAL, SINGLE-DOSE in 1 CARTON (70710-172... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 70710-1726-08 | Nelarabine 5 mg/mL INJECTION | Zydus | 6 VIAL, SINGLE-DOSE in 1 CARTON (70710-172... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 70710-1839-01 | Nelarabine 5 mg/mL INJECTION | Zydus | 1 VIAL, SINGLE-DOSE in 1 CARTON (70710-183... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 70710-1839-08 | Nelarabine 5 mg/mL INJECTION | Zydus | 6 VIAL, SINGLE-DOSE in 1 CARTON (70710-183... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 71288-0165-53 | Nelarabine | Meitheal | — | — | 30 | $1,962.21 | — | — | CMS + PDAC |
| 71288-0165-54 | Nelarabine 5 mg/mL INJECTION | Meitheal | 1 VIAL, SINGLE-DOSE in 1 CARTON (71288-165... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 72205-0154-01 | NELARABINE 5 mg/mL INJECTION | Novadoz | 1 VIAL in 1 CARTON (72205-154-01) / 50 mL... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 72205-0154-04 | NELARABINE 5 mg/mL INJECTION | Novadoz | 6 VIAL in 1 CARTON (72205-154-04) / 50 mL... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 81927-0111-01 | nelarabine 5 mg/mL INJECTION | Shorla | 1 VIAL, SINGLE-DOSE in 1 CARTON (81927-111... | 5 mg/mL | 5 | $327.04 | — | ● Active | CMS + PDAC |
| 81927-0111-06 | nelarabine 5 mg/mL INJECTION | Shorla | 6 VIAL, SINGLE-DOSE in 1 CARTON (81927-111... | 5 mg/mL | 30 | $1,962.21 | — | ● Active | CMS + PDAC |
| 81927-0375-01 | nelarabine 5 mg/mL INJECTION | Shorla | 1 VIAL, SINGLE-DOSE in 1 CARTON (81927-375... | 5 mg/mL | 0.1 | $6.54 | — | ● Active | PDAC |
| 62332-0813-63 | NELARABINE 5 mg/mL INJECTION | Alembic | 6 VIAL in 1 CARTON (62332-813-63) / 50 mL... | 5 mg/mL | 0.1 | $6.54 | — | ● Active | PDAC |
| 00078-0683-06 | ARRANON (6X50ML,LATEX-FREE) 5 MG/1 ML | Unknown | — | — | 0.1 | $6.54 | — | — | PDAC |
NDC→HCPCS mappings come from the CMS ASP NDC-HCPCS crosswalk; additional DME MAC / DMEPOS mappings come from PDAC and are labeled separately. NADAC from CMS (weekly). “Status” reflects the product's marketing / obsolete flag in the NDC directory. Presence or absence here does not determine Medicare coverage. Linked NDCs open the full product page.
📊 Medicare utilization & spend CMS · PART B · 2025 (Q1-Q4)
Total Part B spend
$130.3K
Claims
49
Beneficiaries
12
Spend / beneficiary
$10,857.03
Spend / claim
$2,658.86
Where J9261 ranks among Part B drugs · 2025 (Q1-Q4) · neighbors ±5
Total spending — #676 of 918
#671
DEPO-ESTRADIOL J1000
$139.1K
#672
WOUND MATRIX Q4102
$139K
#673
ROMIDEPSIN J9318
$138.3K
#674
ABILIFY ASIMTUFII J0402
$132.6K
#675
THIAMINE HCL J3411
$132K
#676
ARRANON* J9261
$130.3K
#677
GLYCOPYRROLATE(J1596... J1596
$128.4K
#678
LINCOCIN* J2010
$125.5K
#679
CYTAL, PER SQUARE CE... Q4166
$120.2K
#680
MICAFUNGIN(J2248)* J2248
$119.6K
#681
SINUVA J7402
$118.6K
Total claims — #849 of 918
#844
ZEVTERA J0681
51
#845
CLINDAMYCIN-0.9% NAC... J0737
51
#846
CROFAB J0840
51
#847
ARTACENT VERICLEN, P... Q4339
51
#848
FLUPHENAZINE HCL J2679
50
#849
ARRANON* J9261
49
#850
EPINEPHRINE J0166
48
#851
ERAXIS J0348
48
#852
DROPERIDOL J1790
48
#853
SINUVA J7402
48
#854
AMNIOARMOR 1 SQ CM** Q4188
47
Top Medicare Part B drugs by the selected metric. Click any drug to open its J-code page. Source: CMS Medicare Quarterly Part B Spending by Drug.
Full breakdown by period (1)
| Period | Total spend | Beneficiaries | Claims | $/beneficiary | $/claim |
|---|---|---|---|---|---|
| 2025 (Q1-Q4) | $130.3K | 12 | 49 | $10,857.03 | $2,658.86 |
Provider-administered (Part B) spend, calculated for the whole HCPCS code (CMS does not publish Medicare spend per individual NDC). Self-administered use is covered under Part D instead. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part B Spending by Drug (data.cms.gov), updated quarterly.
📈 Medicare Part B claims detail CMS PSPS · 2024
Calendar-year 2024 Medicare Part B fee-for-service activity for this HCPCS code, summed across all carriers, localities and specialties (CMS Physician/Supplier Procedure Summary). A “service” is one billed line/unit — not one claim — so counts run higher than claim counts.
Allowed charges
—
Medicare paid
$0.00
Submitted services
—
Source: CMS Physician/Supplier Procedure Summary (PSPS), CY2024 — Medicare Part B carrier + DME fee-for-service claims (excludes Medicare Advantage). Figures are for the whole HCPCS code, which may cover uses beyond this drug. ⚠ CMS hides any figure covering fewer than 11 patients (a privacy rule), so totals — especially denials and low-volume codes — run a little low.
🗺️ Where J9261 is utilized
⏳
The geographic utilization map is building for this code — it aggregates millions of CMS Part B claim lines, then caches the result. Refresh in a moment; if it doesn’t appear, this code may have no reportable Part B utilization.
📊 What bills under J9261
J-codes are billing codes often used for drugs billed under the medical benefit. This connects the billing code to the NDC package records it covers, by ingredient and labeler.
NDC products by ingredient
NDC products by labeler
🗃️ Data sources & freshness
Every figure on this page is computed from public datasets. Here's what each section draws on and how current it is.
HCPCS code & descriptor
CMS HCPCS Level II code file
Loaded
Payment limit & billing unit
CMS Medicare Part B ASP Pricing File (quarterly)
Q3 2026 · as of 2026-08-20
NDC ↔ HCPCS crosswalk
CMS ASP NDC-HCPCS crosswalk + DMEPDAC (PDAC)
23 NDCs mapped
NADAC acquisition cost
CMS National Average Drug Acquisition Cost (weekly)
Not available for mapped NDCs
Utilization & spend
CMS Part B Spending by Drug · PSPS · Physician & Other Practitioners
Latest data year 2025
Figures are estimates for reference and may lag the source files. Always verify against the current CMS files and your payer's policy before submitting claims.
⚠️ Practical billing caveats
- A crosswalk is not coverage. An NDC mapping or a published payment limit does not guarantee a payer will cover or pay this code. Check the specific plan's policy.
- Units ≠ milligrams. Bill the number of HCPCS units (dose ÷ the code's unit size), not the milligram dose. Use the calculator above.
- Discarded drug. For single-dose vials, drug discarded after administration may be separately billable with modifier JW (and JZ when nothing is discarded) where the payer allows.
- Rounding & partial units. Many payers require whole units; round per the payer's policy, not automatically up.
- The code can cover more than this drug. Some HCPCS codes span multiple products or strengths — confirm the exact code for the product administered.
- Figures lag. ASP limits change quarterly and utilization data are released with a delay. Verify against the current CMS files before billing.
❓ J9261 billing FAQ
What is HCPCS code J9261?
J9261 is a HCPCS Level II J-code used to bill Injection, nelarabine, 50 mg under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J9261?
One unit of J9261 represents 50 MG. Report the number of units equal to the dose administered divided by 50 MG.
How many units of J9261 should I bill?
Divide the dose administered by the code's unit size (50 MG) to get the number of billing units, then round per your payer's policy. The calculator on this page converts a dose into billing units and projects a full course.
How much does Medicare pay for J9261?
The Medicare Part B payment limit is $65.407 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $64.099 per unit. Payment limits are revised quarterly.
Which NDCs bill under J9261?
23 NDCs currently map to J9261 in the CMS ASP NDC-HCPCS crosswalk. See the NDC crosswalk table above for each product, package, billing units and estimated reimbursement.
Does a crosswalk mean J9261 is covered?
No. An NDC-to-HCPCS crosswalk and a published payment limit do not guarantee coverage or payment. Coverage depends on the payer, the diagnosis and the site of care — always verify the current policy before billing.
For professional billing reference only — verify against the current CMS files before submitting claims.