Firmagon (degarelix) NDC 55566-8303

NDC codes

FDA NDC Directory

Product NDC (as listed)55566-8303Labeler and product segments. Claims need a package NDC.

Product NDC at billing width55566-8303Add 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
55566-8303-1	55566830301	1 KIT in 1 CARTON (55566-8303-1) * 4 mL in 1 VIAL, GLASS * 4.2 mL in 1 SYRINGEMarketed from Mar 2, 2009

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): Firmagon
Generic name (nonproprietary): degarelix
Dosage form: Kit
Labeler: Ferring Pharmaceuticals Inc.
Product type: Prescription drug
Marketing category: NDA — New Drug ApplicationApplication NDA 022201
Marketing start: Mar 2, 2009
Listing expires: Dec 31, 2026
Identifiers: Product ID 55566-8303_4c6e7e6f-aadd-45b1-baed-970b24766bf3SPL ID 4c6e7e6f-aadd-45b1-baed-970b24766bf3SPL set ID ab11dd8a-0fd9-4013-89ab-e114557c7e4bRxCUI 828749, 828751, 858125, 858127

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.

NDC on a medical claim

N455566830301 followed by a unit qualifier and the quantity

Package 55566-8303-01. 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 Jan 30, 2024.

Indications (excerpt from the label)

FIRMAGON ® is indicated for treatment of patients with advanced prostate cancer. FIRMAGON is a GnRH receptor antagonist indicated for treatment of patients with advanced prostate cancer. ( 1 )

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under NDA 022201

Products listed under the same FDA application: other strengths and forms, and repackagers who relabel the same product.

FDA NDC Directory listings under NDA 022201
Product	Strength	Form · route	Labeler	Product NDC
Firmagondegarelix	—	Kit	Ferring Pharmaceuticals Inc.	55566-8403