HCPCS drug code · CMS crosswalk
Myobloc J-Code / HCPCS Code
In short
Myobloc is billed under HCPCS J0587 — Injection, rimabotulinumtoxinb, 100 units. One billing unit is 100 units. CMS's crosswalk lists 3 Myobloc NDCs under this code.
Reference
- J0587
- Injection, rimabotulinumtoxinb, 100 unitsBilling unit: 100 units
- Labelers
- Supernus Pharmaceuticals, Inc.
Medicare Part B payment limit
CMS ASP filePayment limit per unit$13.301
Per100 units
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
Myobloc units and claim line
Enter the dose given to get the J0587 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Myobloc 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 |
|---|---|---|---|---|
| 10454-0710-10 | J0587 | Supernus Pharmaceuticals, Inc. | 0.5 | 25 |
| 10454-0711-10 | J0587 | Supernus Pharmaceuticals, Inc. | 1 | 50 |
| 10454-0712-10 | J0587 | Supernus Pharmaceuticals, Inc. | 2 | 100 |
Myobloc: common questions
- What is the J-code for Myobloc?
- Myobloc is billed under HCPCS J0587 — Injection, rimabotulinumtoxinb, 100 units. One billing unit is 100 units. CMS's crosswalk lists 3 Myobloc NDCs under this code.
- How many J0587 billing units are in a package of Myobloc?
- CMS lists 25 to 100 billing units per package, depending on the NDC, where one unit is 100 units. Units to report are based on the dose given, not the package.
- Is J0587 a CPT code?
- No. J0587 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.