HEPARIN SODIUM J Code: J1643
Injection, heparin sodium (pfizer), not therapeutically equivalent to j1644, per 1000 units
Q4 2026 Medicare Payment Limit for J1643, effective October 1, 2026: $2.248 per HCPCS billing unit, up 31.4% from $1.711. From CMS's final file.
Drug & Product Overview
About HEPARIN SODIUM
Heparin Sodium is a medication aligned to the HCPCS J Code: J1643 for billing, pricing, and reimbursement purposes in the United States. Classified under Hematology, it is administered via the intravenous or subcutaneous routes and manufactured by Pfizer.
According to CMS Drug Use Information: This medication is used to prevent and treat blood clots. It may be used to prevent and treat blood clots in the lungs/legs (including in patients with atrial fibrillation). It may be used to treat certain blood clotting disorders. It may also be used to prevent blood clots after surgery, during dialysis, during blood transfusions, when collecting blood samples, or when a person is unable to move for a long time. Heparin helps to keep blood flowing smoothly by making a certain natural substance in your body (anti-clotting protein) work better. It is known as an anticoagulant.
Disclaimer: This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional.
NDC Code Information
Based on publicly available CMS files. Showing 1 of 2 NDCs — log in for the full crosswalk.
| NDC Code | Drug | Manufacturer | Billing Units / Pkg | Package Size |
|---|---|---|---|---|
| 00069-0043-01 | Heparin Sodium | Pfizer Laboratories Div Pfizer Inc | 50 | Heparin Sodium Intrave nous Injection 2… Login for More |
| •••••-••••-•• Log in to view | HEPARIN SODIUM | •••••••••••• Log in to view | •••• Log in to view | ••• •• / • •• Log in to view |
HEPARIN SODIUM Pricing & Reimbursement
National median reimbursement across major commercial payers.
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Login to use the calculator →Heparin Sodium 505(b)(2) Information:
| HCPCS Code | Manufacturer | Active Ingredient | HCPCS Description |
|---|---|---|---|
| J1642 | Generic Code (Multiple Manufacturers) | Heparin Sodium | Injection, heparin sodium, (heparin lock flush), per 10 units |
| J1643 | Pfizer | Heparin Sodium | Injection, heparin sodium (pfizer), not therapeutically equivalent to j1644, per 1000 units |
| J1644 | Generic Code (Multiple Manufacturers) | Heparin Sodium | Injection, heparin sodium, per 1000 units |
HEPARIN SODIUM CPT Administration Codes
The below list of CPT codes is intended for informational purposes only and may not be exhaustive. CPT® codes and descriptions are copyright American Medical Association (AMA). All rights reserved.
| CPT Code | Description |
|---|---|
| 96365 | Intravenous infusion, for therapy, prophylaxis, or diagnosis (specify substance or drug); initial, up to 1 hour |
| 96366 | Intravenous infusion, for therapy, prophylaxis, or diagnosis (specify substance or drug); each additional hour (List separately in addition to code for primary procedure) |
| 96372 Login for More | Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); intramuscular Login for More |
| 96374 Login for More | Therapeutic, prophylactic, or diagnostic injection (specify substance or drug), IV push, single, or initial substance/drug Login for More |
CMS does not include Heparin Sodium (J1643) on its list of HCPCS pertaining to single-dose containers. Per CMS guidelines, the JZ/JW wastage modifiers may not apply when billing J1643. Wastage billing guide →
HEPARIN SODIUM Medically Unlikely Edits (MUE)
The most billing units of J1643 Medicare will pay for one patient in one day, as published by CMS. 1 unit = 1000 units.
MAI 3 · Date of Service Edit: Clinical. Per-day limit based on clinical expectations; excess units are denied but may be appealed with documentation of medical necessity. See all MUE limits →
HEPARIN SODIUM Clinical Information
Indications and drug classification.
This list of indications is not exhaustive and may be subject to errors. The information on BuyandBill.com is intended for informational purposes only and should not be used for medical advice.
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Frequently Asked Questions
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Does billing HEPARIN SODIUM require JZ/JW wastage modifiers?
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