What is NDC 73475-3041?

73475-3041 is the product NDC for Vyvgart (efgartigimod alfa), Efgartigimod alfa 20 mg/mL injection, listed with the FDA by argenx US. It has 1 package NDC, shown above in 10- and 11-digit form.

argenx US, NDC labeler code 73475. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Vyvgart?

None: this is the only finished product listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Vyvgart NDC 73475-3041 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)73475-3041Labeler and product segments. Claims need a package NDC.

Product NDC at billing width73475-3041Add the package segment from the table below.

Package NDCs as listed with the FDA, and the 11-digit 5-4-2 form used on claims. The highlighted digit is the added leading zero.
Package NDC	11-digit (billing)	Package	Copy
73475-3041-5	73475304105	1 VIAL, SINGLE-DOSE in 1 CARTON (73475-3041-5) / 20 mL in 1 VIAL, SINGLE-DOSEMarketed from Dec 17, 2021

How the 11-digit form is made: The package segment has 1 digit, so one leading zero is added to it (5-4-1 → 5-4-2). Formatting the NDC does not by itself make it billable — the product, package and quantity must match what was dispensed or administered, and payer rules apply. Conversion rules

Product information

Brand name (proprietary): Vyvgart
Generic name (nonproprietary): efgartigimod alfa
Active ingredients: Efgartigimod alfa — 20 mg/mL
Dosage form: Injection
Route: Intravenous
Labeler: argenx USNDC labeler code 73475
Product type: Prescription drug
Marketing category: BLA — Biologics License ApplicationApplication BLA 761195
Marketing start: Dec 17, 2021
Listing expires: Dec 31, 2027
Other FDA classes: Neonatal Fc Receptor Blockers (Mechanism)
Identifiers: Product ID 73475-3041_3bce287a-2242-4c56-ba66-c06cc0eec56cSPL ID 3bce287a-2242-4c56-ba66-c06cc0eec56cSPL set ID 8aefc8e3-26d6-4ff6-aab9-a7542927e084RxCUI 2587723, 2587729UNII 961YV2O515
Pharmacologic class: Neonatal Fc Receptor Blocker

Billing references

What Med-Code can say about coding this product, and where each statement comes from. Nothing here is inferred from the name alone.

HCPCS codeNo match

No drug-specific HCPCS code in Med-Code's directory for this product. The directory is curated and not complete — check the current CMS HCPCS file before billing.

Administration

Drug administration (CPT 96360–96549)

When a clinician administers the drug, the administration is reported separately. Codes in this range cover hydration, therapeutic injections and infusions, and chemotherapy or other complex drug administration. The right code depends on route, duration and drug type, and self-administered drugs are not billed this way.

How CPT relates to drug billing

NDC on a medical claim

N473475304105 followed by a unit qualifier and the quantity

Package 73475-3041-05. Unit qualifiers: F2 (international unit), GR (gram), ME (milligram), ML (milliliter), UN (unit (each)). The qualifier and quantity depend on what was given. About the N4 qualifier

Product label

Current FDA label (SPL), effective May 13, 2026.

Indications (excerpt from the label)

VYVGART is indicated for the treatment of adult patients with generalized myasthenia gravis (gMG). VYVGART is a neonatal Fc receptor blocker indicated for the treatment of adult patients with generalized myasthenia gravis (gMG). ( 1 )

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 73475-3041

What is NDC 73475-3041?: 73475-3041 is the product NDC for Vyvgart (efgartigimod alfa), Efgartigimod alfa 20 mg/mL injection, listed with the FDA by argenx US. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Vyvgart (Efgartigimod alfa).
What is the active ingredient?: Efgartigimod alfa.
Who is the labeler?: argenx US, NDC labeler code 73475. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Vyvgart?: None: this is the only finished product listed under this name.
Is there a related HCPCS / J-code?: Not in Med-Code's curated HCPCS directory. See Billing references above.

Vyvgart (Efgartigimod alfa) NDC 73475-3041