HCPCS drug code · CMS crosswalk
Baclofen J-Code / HCPCS Code
In short
CMS assigns Baclofen 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.
Reference
- J0475
- Injection, baclofen, 10 mgBilling unit: 10 mg
- J0476
- Injection, baclofen, 50 mcg for intrathecal trialBilling unit: 50 mcg
- Labelers
- Mylan Institutional LLC; Nexus Pharmaceuticals, LLC; Sagent Pharmaceuticals
Medicare Part B payment limit
CMS ASP fileEffective 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 fileEffective 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
Baclofen 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.
Baclofen 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.
| NDC (11-digit) | HCPCS | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| 14789-0161-05 | J0475 | Nexus Pharmaceuticals, LLC | 20 | 4 |
| 25021-0678-20 | J0475 | Sagent Pharmaceuticals | 20 | 1 |
| 25021-0679-20 | J0475 | Sagent Pharmaceuticals | 20 | 4 |
| 25021-0680-20 | J0475 | Sagent Pharmaceuticals | 20 | 2 |
| 67457-0564-20 | J0475 | Mylan Institutional LLC | 20 | 4 |
| 25021-0681-71 | J0476 | Sagent Pharmaceuticals | 2 × 1 | 2 |
Baclofen: common questions
- What is the J-code for Baclofen?
- CMS assigns Baclofen 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 Baclofen?
- 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 Baclofen?
- CMS lists 2 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.