HCPCS drug code · CMS crosswalk
Heparin Sodium in NaCl J-Code / HCPCS Code
In short
Heparin Sodium in NaCl is billed under HCPCS J1644 — Injection, heparin sodium, per 1000 units. One billing unit is 1000 units. CMS's crosswalk lists 11 Heparin Sodium in NaCl NDCs under this code.
Reference
- J1644
- Injection, heparin sodium, per 1000 unitsBilling unit: 1000 units
- Labelers
- B. Braun Medical Inc.; FreseniUS Kabi USA, LLC; HF Acquisition Co. LLC, DBA HealthFirst; Pfizer 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
Heparin Sodium in NaCl units and claim line
Enter the dose given to get the J1644 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Heparin Sodium in NaCl 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 |
|---|---|---|---|---|
| 00264-3301-10 | J1644 | B. Braun Medical Inc. | 24 × 500 | 600 |
| 00264-3462-20 | J1644 | B. Braun Medical Inc. | 24 × 250 | 600 |
| 00409-0012-30 | J1644 | Pfizer Inc | 30 × 250 | 375 |
| 00409-1005-20 | J1644 | Pfizer Inc | 20 × 500 | 20 |
| 00409-2222-12 | J1644 | Pfizer Inc | 12 × 1000 | 24 |
| 00409-3150-20 | J1644 | Pfizer Inc | 20 × 500 | 500 |
| 00409-7620-59 | J1644 | Pfizer Inc | 12 × 1000 | 24 |
| 00409-7650-30 | J1644 | Pfizer Inc | 30 × 250 | 750 |
| 51662-1411-01 | J1644 | HF Acquisition Co. LLC, DBA HealthFirst | 250 | 25 |
| 63323-0519-10 | J1644 | FreseniUS Kabi USA, LLC | 12 × 1000 | 24 |
| 63323-0519-77 | J1644 | FreseniUS Kabi USA, LLC | 24 × 500 | 24 |
Heparin Sodium in NaCl: common questions
- What is the J-code for Heparin Sodium in NaCl?
- Heparin Sodium in NaCl is billed under HCPCS J1644 — Injection, heparin sodium, per 1000 units. One billing unit is 1000 units. CMS's crosswalk lists 11 Heparin Sodium in NaCl NDCs under this code.
- How many J1644 billing units are in a package of Heparin Sodium in NaCl?
- CMS lists 20 to 750 billing units per package, depending on the NDC, where one unit is 1000 units. Units to report are based on the dose given, not the package.
- Is J1644 a CPT code?
- No. J1644 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.