No. J1652 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.

What NDCs are billed under J1652?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 27 NDCs under J1652, for Arixtra and Fondaparinux Sodium. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J1652?

$0.798 per 0.5 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 J1652?

One unit of J1652 is 0.5 mg, as stated in the code's descriptor. Units to report = dose given ÷ 0.5 mg.

J1652 J-Code: Arixtra (fondaparinux sodium)

In short

J1652 is the HCPCS Level II code for injection, fondaparinux sodium, 0.5 mg. CMS assigns NDCs for Arixtra and Fondaparinux Sodium to it. One billing unit is 0.5 mg. The Medicare Part B payment limit is $0.798 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ1652

Billing unit0.5 mg

Descriptor: Injection, fondaparinux sodium, 0.5 mg
Short descriptor: Fondaparinux sodium
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 1, 2003

The billing unit is read from the descriptor. Confirm it against the CMS file before billing.

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

Units and claim line

Units = dose given ÷ 0.5 mg. For example, 50 mg is 100 units. Enter the dose to get the 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.

NDCs billed under J1652

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 27 NDCs to J1652 for Arixtra and Fondaparinux Sodium. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J1652 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Arixtra	67457-0592-10	Mylan Institutional LLC	10 × 0.5	50
Arixtra	67457-0593-04	Mylan Institutional LLC	10 × 0.4	100
Arixtra	67457-0594-06	Mylan Institutional LLC	10 × 0.6	150
Arixtra	67457-0595-08	Mylan Institutional LLC	10 × 0.8	200
Fondaparinux Sodium	00781-3443-95	Sandoz Inc.	10 × 0.5	50
Fondaparinux Sodium	00781-3454-95	Sandoz Inc.	10 × 0.4	100
Fondaparinux Sodium	00781-3465-95	Sandoz Inc.	10 × 0.6	150
Fondaparinux Sodium	00781-3476-95	Sandoz Inc.	10 × 0.8	200
Fondaparinux Sodium	55111-0678-02	Dr. Reddy's Laboratories Inc.	2 × 0.5	10
Fondaparinux Sodium	55111-0678-10	Dr. Reddy's Laboratories Inc.	10 × 0.5	50
Fondaparinux Sodium	55111-0679-02	Dr. Reddy's Laboratories Inc.	2 × 0.4	20
Fondaparinux Sodium	55111-0679-10	Dr. Reddy's Laboratories Inc.	10 × 0.4	100
Fondaparinux Sodium	55111-0680-02	Dr. Reddy's Laboratories Inc.	2 × 0.6	30
Fondaparinux Sodium	55111-0680-10	Dr. Reddy's Laboratories Inc.	10 × 0.6	150
Fondaparinux Sodium	55111-0681-02	Dr. Reddy's Laboratories Inc.	2 × 0.8	40
Fondaparinux Sodium	55111-0681-10	Dr. Reddy's Laboratories Inc.	10 × 0.8	200
Fondaparinux Sodium	55150-0230-10	Eugia US LLC	10 × 0.5	50
Fondaparinux Sodium	55150-0231-10	Eugia US LLC	10 × 0.4	100
Fondaparinux Sodium	55150-0232-10	Eugia US LLC	10 × 0.6	150
Fondaparinux Sodium	55150-0233-10	Eugia US LLC	10 × 0.8	200
Fondaparinux Sodium	67457-0582-10	Mylan Institutional LLC	10 × 0.5	50
Fondaparinux Sodium	67457-0583-04	Mylan Institutional LLC	10 × 0.4	100
Fondaparinux Sodium	67457-0584-06	Mylan Institutional LLC	10 × 0.6	150
Fondaparinux Sodium	67457-0585-08	Mylan Institutional LLC	10 × 0.8	200
Fondaparinux Sodium	70710-1514-06	Zydus Pharmaceuticals (USA) Inc.	10 × 0.5	50
Fondaparinux Sodium	70710-1514-09	Zydus Pharmaceuticals (USA) Inc.	2 × 0.5	10
Fondaparinux Sodium	70710-1515-06	Zydus Pharmaceuticals (USA) Inc.	10 × 0.4	100

J1652: common questions

Is J1652 a CPT code?: No. J1652 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 J1652?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 27 NDCs under J1652, for Arixtra and Fondaparinux Sodium. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J1652?: $0.798 per 0.5 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 J1652?: One unit of J1652 is 0.5 mg, as stated in the code's descriptor. Units to report = dose given ÷ 0.5 mg. J-code billing units.

J1652 — Injection, fondaparinux sodium, 0.5 mg