What is NDC 0006-5073?

0006-5073 is the product NDC for Enflonsia (clesrovimab), Clesrovimab 150 mg/mL injection, solution, listed with the FDA by Merck Sharp & Dohme LLC. It has 2 package NDCs, shown above in 10- and 11-digit form.

Merck Sharp & Dohme LLC, NDC labeler code 0006. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Enflonsia?

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.

Enflonsia NDC 0006-5073 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)0006-5073Labeler and product segments. Claims need a package NDC.

Product NDC at billing width00006-5073Add 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
0006-5073-01	00006507301	1 SYRINGE, GLASS in 1 CARTON (0006-5073-01) / .7 mL in 1 SYRINGE, GLASS (0006-5073-99)Marketed from Jun 9, 2025
0006-5073-02	00006507302	10 SYRINGE, GLASS in 1 CARTON (0006-5073-02) / .7 mL in 1 SYRINGE, GLASS (0006-5073-99)Marketed from Jun 9, 2025

How the 11-digit form is made: The labeler segment has 4 digits, so one leading zero is added to it (4-4-2 → 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): Enflonsia
Generic name (nonproprietary): clesrovimab
Active ingredients: Clesrovimab — 150 mg/mL
Dosage form: Injection, Solution
Route: Intramuscular
Labeler: Merck Sharp & Dohme LLCNDC labeler code 0006
Product type: Prescription drug
Marketing category: BLA — Biologics License ApplicationApplication BLA 761432
Marketing start: Jun 9, 2025
Listing expires: Dec 31, 2026
Identifiers: Product ID 0006-5073_3db80030-7b81-4686-872e-bd202c44ff24SPL ID 3db80030-7b81-4686-872e-bd202c44ff24SPL set ID c9004a92-40e8-4cdb-b22d-d07929f8fc3bRxCUI 2716809, 2716816UNII VJO29R4CP9

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

N400006507301 followed by a unit qualifier and the quantity

Package 00006-5073-01. 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 Jun 20, 2025.

Indications (excerpt from the label)

ENFLONSIA is indicated for the prevention of respiratory syncytial virus (RSV) lower respiratory tract disease in neonates and infants who are born during or entering their first RSV season. ENFLONSIA is a respiratory syncytial virus (RSV) F protein-directed fusion inhibitor indicated for the prevention of RSV lower respiratory tract disease in neonates and infants who are born during or entering their first RSV season. ( 1 )

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 0006-5073

What is NDC 0006-5073?: 0006-5073 is the product NDC for Enflonsia (clesrovimab), Clesrovimab 150 mg/mL injection, solution, listed with the FDA by Merck Sharp & Dohme LLC. It has 2 package NDCs, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Enflonsia (Clesrovimab).
What is the active ingredient?: Clesrovimab.
Who is the labeler?: Merck Sharp & Dohme LLC, NDC labeler code 0006. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Enflonsia?: 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.

Enflonsia (Clesrovimab) NDC 0006-5073