J3420 – Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
HCPCS Level II code · J codes: Drugs Administered Other Than Oral Method
HCPCS codeJ3420
- Long description
- Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
- Short description
- Vitamin b12 injection
- Pricing indicator
51Drugs- Medicare coverage
DSpecial coverage instructions apply- BETOS category
O1EOther drugs- Added
- January 1, 1986
- Last change
- January 1, 1997 – No change
Frequently asked questions
What is HCPCS code J3420?
J3420 is a HCPCS Level II code for injection, vitamin b-12 cyanocobalamin, up to 1000 mcg.
Does Medicare cover J3420?
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.
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Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.