J1643 – Injection, heparin sodium (pfizer), not therapeutically equivalent to j1644, per 1000 units
HCPCS Level II code · J codes: Drugs Administered Other Than Oral Method
HCPCS codeJ1643
- Long description
- Injection, heparin sodium (pfizer), not therapeutically equivalent to j1644, per 1000 units
- Short description
- Inj heparin, pfizer, 1000u
- Pricing indicator
51Drugs- Medicare coverage
DSpecial coverage instructions apply- BETOS category
O1EOther drugs- ASC
- Approved for ambulatory surgical centers
- Added
- January 1, 2023
- Last change
- January 1, 2024 – No change
Frequently asked questions
What is HCPCS code J1643?
J1643 is a HCPCS Level II code for injection, heparin sodium (pfizer), not therapeutically equivalent to j1644, per 1000 units.
Does Medicare cover J1643?
The HCPCS file lists coverage code D: Special coverage instructions apply. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby J codes
- J1626 – Injection, granisetron hydrochloride, 100 mcg
- J1627 – Injection, granisetron, extended-release, 0.1 mg
- J1628 – Injection, guselkumab, 1 mg
- J1630 – Injection, haloperidol, up to 5 mg
- J1631 – Injection, haloperidol decanoate, per 50 mg
- J1632 – Injection, brexanolone, 1 mg
- J1640 – Injection, hemin, 1 mg
- J1642 – Injection, heparin sodium, (heparin lock flush), per 10 units
- J1644 – Injection, heparin sodium, per 1000 units
- J1645 – Injection, dalteparin sodium, per 2500 iu
- J1650 – Injection, enoxaparin sodium, 10 mg
- J1652 – Injection, fondaparinux sodium, 0.5 mg
- J1655 – Injection, tinzaparin sodium, 1000 iu
- J1670 – Injection, tetanus immune globulin, human, up to 250 units
- J1675 – Injection, histrelin acetate, 10 micrograms
- J1700 – Injection, hydrocortisone acetate, up to 25 mg
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.