HCPCS Level II drug code
J9261 — Injection, nelarabine, 50 mg
In short
J9261 is the HCPCS Level II code for injection, nelarabine, 50 mg. CMS assigns NDCs for Arranon and Nelarabine to it. One billing unit is 50 mg. The Medicare Part B payment limit is $40.872 per unit (October 1, 2026 through December 31, 2026).
Code
CMS HCPCS file- Descriptor
- Injection, nelarabine, 50 mg
- Short descriptor
- Nelarabine injection
- Code set
- HCPCS Level II, maintained by CMS
- Effective
- Jan 1, 2007
The billing unit is read from the descriptor. Confirm it against the CMS file before billing.
Medicare Part B payment limit
CMS ASP fileEffective October 1, 2026 through December 31, 2026. Payment allowance limits subject to the ASP methodology are based on 2Q26 ASP data. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files
Units and claim line
Units = dose given ÷ 50 mg. For example, 5000 mg is 100 units. Enter the dose to get the units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
NDCs billed under J9261
CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 20 NDCs to J9261 for Arranon and Nelarabine. Billing units per package are CMS’s figures for this code’s unit.
| Drug | NDC (11-digit) | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| Arranon | 00078-0683-61 | Sandoz Inc. | 50 | 5 |
| Arranon | 66758-0165-94 | Sandoz Inc. | 50 | 5 |
| Nelarabine | 25021-0259-50 | Sagent Pharmaceuticals | 50 | 5 |
| Nelarabine | 25021-0259-51 | Sagent Pharmaceuticals | 6 × 50 | 30 |
| Nelarabine | 39822-0650-01 | XGen Pharmaceuticals DJB, Inc. | 50 | 5 |
| Nelarabine | 39822-0650-06 | XGen Pharmaceuticals DJB, Inc. | 6 × 50 | 30 |
| Nelarabine | 43598-0142-06 | Dr. Reddy's Laboratories Inc. | 6 × 50 | 30 |
| Nelarabine | 43598-0142-11 | Dr. Reddy's Laboratories Inc. | 50 | 5 |
| Nelarabine | 62332-0813-50 | Alembic Pharmaceuticals Inc. | 50 | 5 |
| Nelarabine | 70121-1743-04 | Amneal Pharmaceuticals, LLC | 6 × 50 | 30 |
| Nelarabine | 70710-1726-01 | Zydus Pharmaceuticals (USA) Inc. | 50 | 5 |
| Nelarabine | 70710-1726-08 | Zydus Pharmaceuticals (USA) Inc. | 6 × 50 | 30 |
| Nelarabine | 70710-1839-01 | Zydus Pharmaceuticals (USA) Inc. | 50 | 5 |
| Nelarabine | 70710-1839-08 | Zydus Pharmaceuticals (USA) Inc. | 6 × 50 | 30 |
| Nelarabine | 71288-0165-53 | Meitheal Pharmaceuticals Inc. | 6 × 50 | 30 |
| Nelarabine | 71288-0165-54 | Meitheal Pharmaceuticals Inc. | 50 | 5 |
| Nelarabine | 72205-0154-01 | Novadoz Pharmaceuticals LLC | 50 | 5 |
| Nelarabine | 72205-0154-04 | Novadoz Pharmaceuticals LLC | 6 × 50 | 30 |
| Nelarabine | 81927-0111-01 | Shorla Oncology Inc. | 50 | 5 |
| Nelarabine | 81927-0111-06 | Shorla Oncology Inc. | 6 × 50 | 30 |
J9261: common questions
- Is J9261 a CPT code?
- No. J9261 is a HCPCS Level II code, maintained by CMS, that identifies the drug supplied. CPT codes are five-digit numbers from the AMA that describe services. Giving the drug, for example an injection or infusion, is usually reported with a separate CPT administration code. CPT codes for drug administration.
- What NDCs are billed under J9261?
- CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 20 NDCs under J9261, for Arranon and Nelarabine. The table on this page shows each one with its billing units per package.
- What is the Medicare payment limit for J9261?
- $40.872 per 50 mg, effective October 1, 2026 through December 31, 2026, from CMS's Part B drug payment limit file. Multiply by the units billed for the allowed amount before deductible and coinsurance. It is not a coverage decision.
- What is one billing unit of J9261?
- One unit of J9261 is 50 mg, as stated in the code's descriptor. Units to report = dose given ÷ 50 mg. J-code billing units.