In short

Bicillin L-A is billed under HCPCS J0561 — Injection, penicillin g benzathine, 100,000 units. One billing unit is 100,000 units. CMS's crosswalk lists 5 Bicillin L-A NDCs under this code.

J0561 code details

Reference

J0561
Injection, penicillin g benzathine, 100,000 unitsBilling unit: 100,000 units
Labelers
A-S Medication Solutions; Pfizer Inc

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$25.612
Per100,000 units
Coinsurance15.105%

Effective October 1, 2026 through December 31, 2026. Payment allowance limits subject to the ASP methodology are based on 2Q26 ASP data. CMS note: Inflation-adjusted coinsurance. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files

Bicillin L-A units and claim line

Enter the dose given to get the J0561 units and the NDC line for the CMS-1500 and the 837P.

Enter the units to build the claim line.

Bicillin L-A 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.

Bicillin L-A NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
50090-1016-00J0561A-S Medication Solutions10 × 2120
50090-1016-01J0561A-S Medication Solutions212
60793-0700-10J0561Pfizer Inc10 × 160
60793-0701-10J0561Pfizer Inc10 × 2120
60793-0702-10J0561Pfizer Inc10 × 4240

Bicillin L-A: common questions

What is the J-code for Bicillin L-A?
Bicillin L-A is billed under HCPCS J0561 — Injection, penicillin g benzathine, 100,000 units. One billing unit is 100,000 units. CMS's crosswalk lists 5 Bicillin L-A NDCs under this code.
How many J0561 billing units are in a package of Bicillin L-A?
CMS lists 12 to 240 billing units per package, depending on the NDC, where one unit is 100,000 units. Units to report are based on the dose given, not the package.
Is J0561 a CPT code?
No. J0561 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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