HCPCS drug code · CMS crosswalk
Neupogen J-Code / HCPCS Code
In short
Neupogen is billed under HCPCS J1442 — Injection, filgrastim (g-csf), excludes biosimilars, 1 microgram. One billing unit is 1 mcg. CMS's crosswalk lists 8 Neupogen NDCs under this code.
Reference
- J1442
- Injection, filgrastim (g-csf), excludes biosimilars, 1 microgramBilling unit: 1 mcg
- Labelers
- Amgen Inc
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
Neupogen units and claim line
Enter the dose given to get the J1442 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Neupogen NDCs and billing units
From CMS’s ASP NDC–HCPCS crosswalk, effective October 1, 2026 through December 31, 2026. Billing units per package are CMS’s figures for the code’s unit.
| NDC (11-digit) | HCPCS | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| 55513-0209-10 | J1442 | Amgen Inc | 10 × 0.8 | 4800 |
| 55513-0209-20 | J1442 | Amgen Inc | 10 × 0.8 | 4800 |
| 55513-0209-91 | J1442 | Amgen Inc | 0.8 | 480 |
| 55513-0530-10 | J1442 | Amgen Inc | 10 × 1 | 3000 |
| 55513-0530-20 | J1442 | Amgen Inc | 10 × 1 | 3000 |
| 55513-0546-10 | J1442 | Amgen Inc | 10 × 1.6 | 4800 |
| 55513-0924-10 | J1442 | Amgen Inc | 10 × 0.5 | 3000 |
| 55513-0924-91 | J1442 | Amgen Inc | 0.5 | 300 |
Neupogen: common questions
- What is the J-code for Neupogen?
- Neupogen is billed under HCPCS J1442 — Injection, filgrastim (g-csf), excludes biosimilars, 1 microgram. One billing unit is 1 mcg. CMS's crosswalk lists 8 Neupogen NDCs under this code.
- How many J1442 billing units are in a package of Neupogen?
- CMS lists 300 to 4,800 billing units per package, depending on the NDC, where one unit is 1 mcg. Units to report are based on the dose given, not the package.
- Is J1442 a CPT code?
- No. J1442 is a HCPCS Level II code from CMS for the drug itself. Giving it, for example by injection or infusion, is usually reported with a separate CPT administration code.
Other codes for the same drug
- Q5101Injection, filgrastim-sndz, biosimilar, (zarxio), 1 microgram
- Q5110Injection, filgrastim-aafi, biosimilar, (nivestym), 1 microgram
- Q5125Injection, filgrastim-ayow, biosimilar, (releuko), 1 microgram
- Q5148Injection, filgrastim-txid (nypozi), biosimilar, 1 microgram
- Q5172Injection, filgrastim-laha (filkri), biosimilar, 1 microgram