In short

CMS assigns Gablofen NDCs to 2 HCPCS codes: J0475 (per 10 mg), J0476 (per 50 mcg). Which one applies depends on the product; the table lists each NDC with its code.

J0475 code detailsJ0476 code details

Reference

J0475
Injection, baclofen, 10 mgBilling unit: 10 mg
J0476
Injection, baclofen, 50 mcg for intrathecal trialBilling unit: 50 mcg
Labelers
Piramal Critical Care Inc

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$186.996
Per10 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

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$46.539
Per50 mcg
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

Gablofen units and claim line

Enter the dose given to get the J0475 units and the NDC line for the CMS-1500 and the 837P. This builds the J0475 line; use the code page for J0476.

Enter the dose given to build the claim line.

Gablofen 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.

Gablofen NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
66794-0155-01J0475Piramal Critical Care Inc201
66794-0155-02J0475Piramal Critical Care Inc201
66794-0156-01J0475Piramal Critical Care Inc202
66794-0156-02J0475Piramal Critical Care Inc202
66794-0157-01J0475Piramal Critical Care Inc204
66794-0157-02J0475Piramal Critical Care Inc204
66794-0151-01J0476Piramal Critical Care Inc11

Gablofen: common questions

What is the J-code for Gablofen?
CMS assigns Gablofen NDCs to 2 HCPCS codes: J0475 (per 10 mg), J0476 (per 50 mcg). Which one applies depends on the product; the table lists each NDC with its code.
How many J0475 billing units are in a package of Gablofen?
CMS lists 1 to 4 billing units per package, depending on the NDC, where one unit is 10 mg. Units to report are based on the dose given, not the package.
How many J0476 billing units are in a package of Gablofen?
CMS lists 1 billing units per package, depending on the NDC, where one unit is 50 mcg. Units to report are based on the dose given, not the package.
Is J0475 a CPT code?
No. J0475 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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