HCPCS code J9332: Injection, efgartigimod alfa-fcab, 2 mg

J9332 is for Vyvgart (efgartigimod alfa-fcab), which is administered via intravenous infusion. J9334 is for Vyvgart Hytrulo (efgartigimod alfa and hyaluronidase-qvfc), which is a subcutaneous injection. They are different formulations of the same active ingredient and are billed with different codes.

In most cases, yes. Due to the high cost of the drug and its specific indications, most payers require prior authorization to verify that the patient meets the established medical necessity criteria before they will cover the cost.

If a single-use vial is partially used and the remainder is discarded, you must bill for both the administered amount and the discarded amount on separate lines. The line for the discarded portion must include the JW modifier and the number of units that were wasted. The medical record must document the reason for the wastage.