In short

Granix is billed under HCPCS J1447 — Injection, tbo-filgrastim, 1 microgram. One billing unit is 1 mcg. CMS's crosswalk lists 10 Granix NDCs under this code.

J1447 code details

Reference

J1447
Injection, tbo-filgrastim, 1 microgramBilling unit: 1 mcg
Labelers
Cephalon, LLC

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$0.279
Per1 mcg
Coinsurance20%

Effective 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

Granix units and claim line

Enter the dose given to get the J1447 units and the NDC line for the CMS-1500 and the 837P.

Enter the dose given to build the claim line.

Granix 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.

Granix NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
63459-0910-11J1447Cephalon, LLC0.5300
63459-0910-15J1447Cephalon, LLC10 × 0.53000
63459-0910-17J1447Cephalon, LLC0.5300
63459-0910-36J1447Cephalon, LLC5 × 0.51500
63459-0912-11J1447Cephalon, LLC0.8480
63459-0912-15J1447Cephalon, LLC10 × 0.84800
63459-0912-17J1447Cephalon, LLC0.8480
63459-0912-36J1447Cephalon, LLC5 × 0.82400
63459-0918-59J1447Cephalon, LLC10 × 13000
63459-0920-59J1447Cephalon, LLC10 × 1.64800

Granix: common questions

What is the J-code for Granix?
Granix is billed under HCPCS J1447 — Injection, tbo-filgrastim, 1 microgram. One billing unit is 1 mcg. CMS's crosswalk lists 10 Granix NDCs under this code.
How many J1447 billing units are in a package of Granix?
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 J1447 a CPT code?
No. J1447 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.

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