J3420 Vitamin b12 injection
Also known as: vitamin B12, cyanocobalamin, B12 injection
Vitamin B12 injection is used for cobalamin deficiency including pernicious anemia and maintenance therapy in neurologic disease.
In Plain Language
B12 injection; energy and nerve support
Clinical Context
Used for vitamin B12 deficiency including pernicious anemia and neurologic manifestations. Intramuscular administration bypasses intrinsic factor requirement. Maintenance therapy for neurologic disease.
RVU Information
CPT J3420 does not have a physician work RVU assigned by CMS. This is typical for supply, drug, and equipment codes — reimbursement is based on Average Sales Price (ASP), fee schedules, or payer contracts rather than the RVU system.
Billing & Documentation
J-codes represent drugs administered by a healthcare provider (not self-administered). Documentation must include the drug name, dosage, route of administration, and medical necessity. Most payers require the National Drug Code (NDC) on the claim. Bill the appropriate administration code (96365-96379) in addition to the drug code.
Specialties
Frequently Asked Questions
What is CPT code J3420?
CPT J3420 (Vitamin b12 injection) is a J Codes (Drugs) code. Vitamin B12 injection is used for cobalamin deficiency including pernicious anemia and maintenance therapy in neurologic disease.
How is J3420 administered?
CPT J3420 is administered by a healthcare provider, typically via injection or infusion. Used for vitamin B12 deficiency including pernicious anemia and neurologic manifestations. Intramuscular administration bypasses intrinsic factor requirement. Maintenance therapy for neurologic disease. It is used by Hematology, Neurology, Internal Medicine.
When is CPT J3420 used?
Used for vitamin B12 deficiency including pernicious anemia and neurologic manifestations. Intramuscular administration bypasses intrinsic factor requirement. Maintenance therapy for neurologic disease.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against MGMA data — all in one app.
CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.