HCPCS drug code · CMS crosswalk
Olanzapine J-Code / HCPCS Code
In short
Olanzapine is billed under HCPCS J2359 — Injection, olanzapine, 0.5 mg. One billing unit is 0.5 mg. CMS's crosswalk lists 9 Olanzapine NDCs under this code.
Reference
- J2359
- Injection, olanzapine, 0.5 mgBilling unit: 0.5 mg
- Labelers
- American Regent, Inc.; Eugia US LLC; Glenmark Pharmaceuticals Inc., USA; Hikma Pharmaceuticals USA Inc.; Northstar RxLLC; PAI Holdings, LLC; Sandoz Inc.; XGen Pharmaceuticals DJB, Inc.
Medicare Part B payment limit
CMS ASP filePayment limit per unit$0.615
Per0.5 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
Olanzapine units and claim line
Enter the dose given to get the J2359 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Olanzapine 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 |
|---|---|---|---|---|
| 00121-1072-55 | J2359 | PAI Holdings, LLC | 1 | 20 |
| 00143-9199-01 | J2359 | Hikma Pharmaceuticals USA Inc. | 1 | 20 |
| 00517-0955-01 | J2359 | American Regent, Inc. | 1 | 20 |
| 00781-3159-72 | J2359 | Sandoz Inc. | 1 | 20 |
| 00781-9105-72 | J2359 | Sandoz Inc. | 1 | 20 |
| 39822-1800-01 | J2359 | XGen Pharmaceuticals DJB, Inc. | 1 | 20 |
| 55150-0308-01 | J2359 | Eugia US LLC | 1 | 20 |
| 68462-0952-10 | J2359 | Glenmark Pharmaceuticals Inc., USA | 1 | 20 |
| 72603-0181-01 | J2359 | Northstar RxLLC | 1 | 20 |
Olanzapine: common questions
- What is the J-code for Olanzapine?
- Olanzapine is billed under HCPCS J2359 — Injection, olanzapine, 0.5 mg. One billing unit is 0.5 mg. CMS's crosswalk lists 9 Olanzapine NDCs under this code.
- How many J2359 billing units are in a package of Olanzapine?
- CMS lists 20 billing units per package, depending on the NDC, where one unit is 0.5 mg. Units to report are based on the dose given, not the package.
- Is J2359 a CPT code?
- No. J2359 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.