NDC codes

FDA NDC Directory
Product NDC (as listed)51655-948Labeler and product segments. Claims need a package NDC.
Product NDC at billing width51655-0948Add 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
51655-948-205165509482020 CAPSULE in 1 BOTTLE, PLASTIC (51655-948-20)Marketed from Feb 20, 2023
51655-948-295165509482928 CAPSULE in 1 BOTTLE, PLASTIC (51655-948-29)Marketed from Feb 20, 2023
51655-948-535165509485310 CAPSULE in 1 BOTTLE, PLASTIC (51655-948-53)Marketed from Aug 31, 2023
51655-948-845165509488414 CAPSULE in 1 BOTTLE, PLASTIC (51655-948-84)Marketed from May 9, 2023

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)
nitrofurantoin macrocrystals
Generic name (nonproprietary)
nitrofurantoin macrocrystals
Active ingredients
Nitrofurantoin — 100 mg/1
Dosage form
Capsule
Route
Oral
Product type
Prescription drug
Marketing category
NDA — New Drug ApplicationApplication NDA 016620
Marketing start
Listing expires
Other FDA classes
Nitrofurans (Chemical structure)
Identifiers
Product ID 51655-948_49748854-b59f-adc7-e063-6394a90afab7SPL ID 49748854-b59f-adc7-e063-6394a90afab7SPL set ID f78102eb-cbed-801a-e053-6294a90ab880RxCUI 1648759UNII 927AH8112L
Pharmacologic class
Nitrofuran Antibacterial

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

N451655094820 followed by a unit qualifier and the quantity

Package 51655-0948-20. 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)

INDICATIONS AND USAGE Nitrofurantoin capsules (macrocrystals) are specifically indicated for the treatment of urinary tract infections when due to susceptible strains of Escherichia coli, enterococci, Staphylococcus aureus , and certain susceptible strains of Klebsiella and Enterobacter species. Nitrofurantoin is not indicated for the treatment of pyelonephritis or perinephric abscesses. To reduce the development of drug-resistant bacteria and maintain the effectiveness of nitrofurantoin capsules (macrocrystals) and other antibacterial drugs, nnitrofurantoin capsules (macrocrystals) should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susce…

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under NDA 016620

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

FDA NDC Directory listings under NDA 016620
ProductStrengthForm · routeLabelerProduct NDC
Nitrofurantion MacrocrystalsNitrofurantoin 100 mg/1CapsuleOralProficient Rx LP63187-245
Nitrofurantion MacrocrystalsNitrofurantoin 50 mg/1CapsuleOralProficient Rx LP71205-023

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free Med-Code account to keep looking up NDCs, J-codes and drugs.

Create a free accountLog in