NDC codes

FDA NDC Directory
Product NDC (as listed)63090-665Labeler and product segments. Claims need a package NDC.
Product NDC at billing width63090-0665Add 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 NDC11-digit (billing)PackageCopy
63090-665-606309006656060 PACKET in 1 CARTON (63090-665-60) / 1 FOR SOLUTION in 1 PACKET (63090-665-01)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 — 8000 mg/1
Dosage form
For solution
Route
Oral
Labeler
Acadia Pharmaceuticals Inc.NDC labeler code 63090
Product type
Prescription drug
Marketing category
NDA — New Drug ApplicationApplication NDA 219884
Marketing start
Listing expires
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 63090-665_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

N463090066560 followed by a unit qualifier and the quantity

Package 63090-0665-60. 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 .

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)

About NDC 63090-665

What is NDC 63090-665?
63090-665 is the product NDC for Daybue Stix (trofinetide), Trofinetide 8000 mg/1 for solution, listed with the FDA by Acadia Pharmaceuticals Inc.. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?
Daybue Stix (Trofinetide).
What is the active ingredient?
Trofinetide.
Who is the labeler?
Acadia Pharmaceuticals Inc., NDC labeler code 63090. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Daybue Stix?
2 other product NDCs are listed under this name. See all Daybue Stix NDCs.
Is there a related HCPCS / J-code?
Not in Med-Code's curated HCPCS directory. See Billing references above.

Other finished products listed under the same name: strengths, forms and labelers.

Other Daybue Stix NDCs
ProductStrengthForm · routeLabelerProduct NDCPackage NDCs (11-digit)
Daybue StixtrofinetideTrofinetide 5000 mg/1For solutionOralAcadia Pharmaceuticals Inc.63090-66363090-0663-60
Daybue StixtrofinetideTrofinetide 6000 mg/1For solutionOralAcadia Pharmaceuticals Inc.63090-66463090-0664-60

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
ProductStrengthForm · routeLabelerProduct NDC
Daybue StixtrofinetideTrofinetide 5000 mg/1For solutionOralAcadia Pharmaceuticals Inc.63090-663
Daybue StixtrofinetideTrofinetide 6000 mg/1For solutionOralAcadia Pharmaceuticals Inc.63090-664

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