No. J2560 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 J2560?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 8 NDCs under J2560, for Phenobarbital Sodium. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J2560?

$23.369 per 120 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.

J2560 J-Code: Phenobarbital sodium — Billing Units & NDCs

In short

J2560 is the HCPCS Level II code for injection, phenobarbital sodium, up to 120 mg. CMS assigns NDCs for Phenobarbital Sodium to it. The Medicare Part B payment limit is $23.369 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ2560

Billing unitSee descriptor

Descriptor: Injection, phenobarbital sodium, up to 120 mg
Short descriptor: Phenobarbital sodium inj
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 1, 1997

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$23.369

Per120 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

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

HCPCS units

Modifier

NDC (11-digit)

NDC unit qualifier

NDC quantity

Enter the units to build the claim line.

NDCs billed under J2560

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 8 NDCs to J2560 for Phenobarbital Sodium. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J2560 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Phenobarbital Sodium	00641-0476-25	Hikma Pharmaceuticals USA Inc.	25 × 1	14
Phenobarbital Sodium	00641-0477-25	Hikma Pharmaceuticals USA Inc.	25 × 1	27
Phenobarbital Sodium	42494-0415-03	Cameron Pharmaceuticals, LLC	3 × 1	2
Phenobarbital Sodium	42494-0415-25	Cameron Pharmaceuticals, LLC	25 × 1	14
Phenobarbital Sodium	42494-0416-03	Cameron Pharmaceuticals, LLC	3 × 1	4
Phenobarbital Sodium	42494-0416-25	Cameron Pharmaceuticals, LLC	25 × 1	27
Phenobarbital Sodium	42494-0441-25	Cameron Pharmaceuticals, LLC	25 × 1	14
Phenobarbital Sodium	42494-0442-25	Cameron Pharmaceuticals, LLC	25 × 1	27

J2560: common questions

Is J2560 a CPT code?: No. J2560 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 J2560?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 8 NDCs under J2560, for Phenobarbital Sodium. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J2560?: $23.369 per 120 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.

J2560 — Injection, phenobarbital sodium, up to 120 mg