NDC codes

FDA NDC Directory
Product NDC (as listed)51407-594Labeler and product segments. Claims need a package NDC.
Product NDC at billing width51407-0594Add 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
51407-594-305140705943030 TABLET, FILM COATED in 1 BOTTLE (51407-594-30)Marketed from Nov 17, 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)
Ambrisentan
Generic name (nonproprietary)
ambrisentan
Active ingredients
Ambrisentan — 5 mg/1
Dosage form
Tablet, Film coated
Route
Oral
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 210701
Marketing start
Listing expires
Other FDA classes
Endothelin Receptor Antagonists (Mechanism)
Identifiers
Product ID 51407-594_496834ab-a472-147d-e063-6394a90a12f3SPL ID 496834ab-a472-147d-e063-6394a90a12f3SPL set ID 4396bab5-2851-62ef-e063-6294a90af76eRxCUI 722116, 722122UNII HW6NV07QEC
Pharmacologic class
Endothelin Receptor Antagonist

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

N451407059430 followed by a unit qualifier and the quantity

Package 51407-0594-30. 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 . This label includes a boxed warning.

Indications (excerpt from the label)

Ambrisentan tablets are indicated for the treatment of pulmonary arterial hypertension (PAH) (WHO Group 1) in adult patients: To improve exercise ability and delay clinical worsening. Studies establishing effectiveness included predominantly patients with WHO Functional Class II–III symptoms and etiologies of idiopathic or heritable PAH (60%) or PAH associated with connective tissue diseases (34%). Ambrisentan tablets are an endothelin receptor antagonist indicated for the treatment of pulmonary arterial hypertension (PAH) (WHO Group 1) in adult patients: To improve exercise ability and delay clinical worsening. Studies establishing effectiveness included trials predominantly in patients wit…

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under ANDA 210701

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

FDA NDC Directory listings under ANDA 210701
ProductStrengthForm · routeLabelerProduct NDC
AmbrisentanAmbrisentan 10 mg/1Tablet, Film coatedOralGolden State Medical Supply, Inc.51407-595
AmbrisentanAmbrisentan 5 mg/1Tablet, Film coatedOralApotex Corp.60505-4552
AmbrisentanAmbrisentan 10 mg/1Tablet, Film coatedOralApotex Corp.60505-4553

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