HCPCS J3475
Injection, magnesium sulfate, per 500 mg
Last reviewed August 2026 · DataLily AI data team
What does HCPCS J3475 mean?
HCPCS J3475 reports an injection of magnesium sulfate, billed per 500 mg. The units on the claim reflect the total dose administered.
Pilot Analysis
Get the complete HCPCS J3475 analysis
Tell us where to send it. Our team will prepare an analysis of HCPCS J3475 covering what payers reimburse across markets and where your rate may sit, and email it to you within 5-10 business days. Need it faster? Book a demo.
HCPCS J3475 at a glance
- Code
- J3475
- Code type
- CPT/HCPCS
- Short descriptor
- Inj magnesium sulfate
- Category
- ASC Ancillary
- ASC eligibility
- ASC-eligible (ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is HCPCS code J3475?
HCPCS J3475 reports an injection of magnesium sulfate, billed per 500 mg. The units on the claim reflect the total dose administered. Its official short descriptor is "Inj magnesium sulfate", and in the ASC context it is grouped under ASC Ancillary.
Is HCPCS J3475 eligible in an ambulatory surgery center (ASC)?
HCPCS J3475 is an ancillary service that can be provided in the ASC setting when it supports a surgical procedure.
Where is HCPCS J3475 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Reference information about ASC eligibility and typical procedure setting. Codes, descriptors, and ASC-eligibility status change over time. This is a coding reference, not billing, coding, or legal advice. Always verify against current guidance and individual payer policy before scheduling or billing. CPT is a registered trademark of the American Medical Association. Read the DataLily AI data methodology.