Daybue Stix (trofinetide) NDC 63090-664

NDC codes

FDA NDC Directory

Product NDC (as listed)63090-664Labeler and product segments. Claims need a package NDC.

Product NDC at billing width63090-0664Add 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
63090-664-60	63090066460	60 PACKET in 1 CARTON (63090-664-60) / 1 FOR SOLUTION in 1 PACKET (63090-664-01)Marketed from Dec 11, 2025

How the 11-digit form is made: The product segment has 3 digits, so one leading zero is added to it (5-3-2 → 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): Daybue Stix
Generic name (nonproprietary): trofinetide
Active ingredients: Trofinetide — 6000 mg/1
Dosage form: For solution
Route: Oral
Labeler: Acadia Pharmaceuticals Inc.
Product type: Prescription drug
Marketing category: NDA — New Drug ApplicationApplication NDA 219884
Marketing start: Dec 11, 2025
Listing expires: Dec 31, 2027
Other FDA classes: Cytochrome P450 3A4 Inhibitors (Mechanism)Organic Anion Transporting Polypeptide 1B1 Inhibitors (Mechanism)Organic Anion Transporting Polypeptide 1B3 Inhibitors (Mechanism)
Identifiers: Product ID 63090-664_acf4551a-4f21-46d6-8575-0c553c2c6d39SPL ID acf4551a-4f21-46d6-8575-0c553c2c6d39SPL set ID 67e6f2d9-21f6-466f-9def-826c6a4b8257RxCUI 2632857, 2632863, 2729447, 2729451, 2729453, 2729455, 2729457, 2729459UNII Z2ME8F52QLUPC 0363090660012

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 HCPCS code in Med-Code's directory. Oral products like this are usually dispensed by a pharmacy and billed by NDC.

NDC on a medical claim

N463090066460 followed by a unit qualifier and the quantity

Package 63090-0664-60. 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 Sep 4, 2026.

Indications (excerpt from the label)

DAYBUE and DAYBUE STIX are indicated for the treatment of Rett syndrome in adults and pediatric patients 2 years of age and older. DAYBUE and DAYBUE STIX are indicated for the treatment of Rett syndrome in adults and pediatric patients 2 years of age and older. ( 1 )

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under NDA 219884

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

FDA NDC Directory listings under NDA 219884
Product	Strength	Form · route	Labeler	Product NDC
Daybue Stixtrofinetide	Trofinetide 5000 mg/1	For solutionOral	Acadia Pharmaceuticals Inc.	63090-663
Daybue Stixtrofinetide	Trofinetide 8000 mg/1	For solutionOral	Acadia Pharmaceuticals Inc.	63090-665