HCPCS Level II code J3475 denotes an injectable dose of magnesium sulfate billed per 500 mg. Magnesium sulfate is used in acute care to treat and prevent magnesium deficiency, to manage certain arrhythmias, and as an adjunct in other clinical indications where intravenous magnesium is indicated. Nationally, accurate reporting of this HCPCS Level II code matters for medication utilization tracking, inpatient and outpatient pharmacy billing, and claims adjudication related to parenteral therapies.

Key payers in scope include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for parenteral magnesium, common sites of service where the code is used, and the typical billing considerations associated with unit-based injectable codes. The publication summarizes benchmark billing practices, payer coverage considerations, and payment-policy landmarks relevant to injectable medications billed per unit.

This summary provides clinicians, billing professionals, and policy analysts a clear reference to the service represented by J3475, the payer landscape addressed, and what to expect in the full publication: utilization benchmarks, payer policy notes, and clinical context for appropriate coding and documentation. Data not available in the input are noted where applicable.