HCPCS drug code · CMS crosswalk
Primaxin Iv J-Code / HCPCS Code
In short
Primaxin Iv is billed under HCPCS J0743 — Injection, cilastatin sodium; imipenem, per 250 mg. One billing unit is 250 mg. CMS's crosswalk lists 1 Primaxin Iv NDC under this code.
Reference
- J0743
- Injection, cilastatin sodium; imipenem, per 250 mgBilling unit: 250 mg
- Labelers
- Merck Sharp & Dohme LLC
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
Primaxin Iv units and claim line
Enter the dose given to get the J0743 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Primaxin Iv 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 |
|---|---|---|---|---|
| 00006-3516-59 | J0743 | Merck Sharp & Dohme LLC | 25 × 1 | 50 |
Primaxin Iv: common questions
- What is the J-code for Primaxin Iv?
- Primaxin Iv is billed under HCPCS J0743 — Injection, cilastatin sodium; imipenem, per 250 mg. One billing unit is 250 mg. CMS's crosswalk lists 1 Primaxin Iv NDC under this code.
- How many J0743 billing units are in a package of Primaxin Iv?
- CMS lists 50 billing units per package, depending on the NDC, where one unit is 250 mg. Units to report are based on the dose given, not the package.
- Is J0743 a CPT code?
- No. J0743 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.