No. J1560 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 J1560?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 2 NDCs under J1560, for Gamastan. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J1560?

$118.153 per 10 cc, 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.

J1560 J-Code: Gamastan (gamma globulin) — Billing Units

In short

J1560 is the HCPCS Level II code for injection, gamma globulin, intramuscular, over 10 cc. CMS assigns NDCs for Gamastan to it. The Medicare Part B payment limit is $118.153 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ1560

Billing unitSee descriptor

Descriptor: Injection, gamma globulin, intramuscular, over 10 cc
Short descriptor: Gamma globulin > 10 cc inj
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 1, 2017

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$118.153

Per10 cc

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 J1560

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 2 NDCs to J1560 for Gamastan. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J1560 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Gamastan	13533-0335-04	Grifols USA, LLC	2	1
Gamastan	13533-0335-12	Grifols USA, LLC	10	1

J1560: common questions

Is J1560 a CPT code?: No. J1560 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 J1560?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 2 NDCs under J1560, for Gamastan. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J1560?: $118.153 per 10 cc, 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.

J1560 — Injection, gamma globulin, intramuscular, over 10 cc