How many J1652 billing units are in a package of Arixtra?

CMS lists 50 to 200 billing units per package, depending on the NDC, where one unit is 0.5 mg. Units to report are based on the dose given, not the package.

No. J1652 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.

Arixtra J-Code J1652 — Billing Units & NDCs

In short

Arixtra is billed under HCPCS J1652 — Injection, fondaparinux sodium, 0.5 mg. One billing unit is 0.5 mg. CMS's crosswalk lists 4 Arixtra NDCs under this code.

J1652 code details

Reference

J1652: Injection, fondaparinux sodium, 0.5 mgBilling unit: 0.5 mg
Labelers: Mylan Institutional LLC

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$0.798

Per0.5 mg

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

Arixtra units and claim line

Enter the dose given to get the J1652 units and the NDC line for the CMS-1500 and the 837P.

Dose given (mg)

HCPCS units (1 unit = 0.5 mg)

Modifier

NDC (11-digit)

NDC unit qualifier

NDC quantity

Enter the dose given to build the claim line.

Arixtra 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.

Arixtra NDCs in the CMS ASP crosswalk
NDC (11-digit)	HCPCS	Labeler	Package	Billing units per package
67457-0592-10	J1652	Mylan Institutional LLC	10 × 0.5	50
67457-0593-04	J1652	Mylan Institutional LLC	10 × 0.4	100
67457-0594-06	J1652	Mylan Institutional LLC	10 × 0.6	150
67457-0595-08	J1652	Mylan Institutional LLC	10 × 0.8	200

Arixtra: common questions

What is the J-code for Arixtra?: Arixtra is billed under HCPCS J1652 — Injection, fondaparinux sodium, 0.5 mg. One billing unit is 0.5 mg. CMS's crosswalk lists 4 Arixtra NDCs under this code.
How many J1652 billing units are in a package of Arixtra?: CMS lists 50 to 200 billing units per package, depending on the NDC, where one unit is 0.5 mg. Units to report are based on the dose given, not the package.
Is J1652 a CPT code?: No. J1652 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.

Arixtra J-Code / HCPCS Code