HCPCS drug code · CMS crosswalk
Linezolid J-Code / HCPCS Code
In short
CMS assigns Linezolid NDCs to 2 HCPCS codes: J2020 (per 200 mg), J2021 (per 200 mg). Which one applies depends on the product; the table lists each NDC with its code.
Reference
- J2020
- Injection, linezolid, 200 mgBilling unit: 200 mg
- J2021
- Injection, linezolid (hospira), not therapeutically equivalent to j2020, 200 mgBilling unit: 200 mg
- Labelers
- Caraco Pharmaceutical Laboratories LTD.; Eugia US LLC; FreseniUS Kabi USA, LLC; Hikma Pharmaceuticals USA Inc.; Pfizer Inc; Piramal Critical Care Inc; Sagent Pharmaceuticals; Sandoz Inc.
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
Linezolid units and claim line
Enter the dose given to get the J2020 units and the NDC line for the CMS-1500 and the 837P. This builds the J2020 line; use the code page for J2021.
Enter the dose given to build the claim line.
Linezolid 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 |
|---|---|---|---|---|
| 00143-9534-10 | J2020 | Hikma Pharmaceuticals USA Inc. | 10 × 300 | 30 |
| 00781-3433-95 | J2020 | Sandoz Inc. | 10 × 300 | 30 |
| 25021-0169-87 | J2020 | Sagent Pharmaceuticals | 10 × 300 | 30 |
| 55150-0242-51 | J2020 | Eugia US LLC | 10 × 300 | 30 |
| 57664-0683-57 | J2020 | Caraco Pharmaceutical Laboratories LTD. | 10 × 300 | 30 |
| 63323-0713-13 | J2020 | FreseniUS Kabi USA, LLC | 10 × 300 | 30 |
| 66794-0219-43 | J2020 | Piramal Critical Care Inc | 10 × 300 | 30 |
| 66794-0236-43 | J2020 | Piramal Critical Care Inc | 10 × 300 | 30 |
| 00409-4883-01 | J2021 | Pfizer Inc | 10 × 300 | 30 |
| 00409-4883-10 | J2021 | Pfizer Inc | 10 × 300 | 30 |
Linezolid: common questions
- What is the J-code for Linezolid?
- CMS assigns Linezolid NDCs to 2 HCPCS codes: J2020 (per 200 mg), J2021 (per 200 mg). Which one applies depends on the product; the table lists each NDC with its code.
- How many J2020 billing units are in a package of Linezolid?
- CMS lists 30 billing units per package, depending on the NDC, where one unit is 200 mg. Units to report are based on the dose given, not the package.
- How many J2021 billing units are in a package of Linezolid?
- CMS lists 30 billing units per package, depending on the NDC, where one unit is 200 mg. Units to report are based on the dose given, not the package.
- Is J2020 a CPT code?
- No. J2020 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.