NDC codes

FDA NDC Directory
Product NDC (as listed)23155-916Labeler and product segments. Claims need a package NDC.
Product NDC at billing width23155-0916Add 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
23155-916-412315509164110 VIAL in 1 PACKAGE (23155-916-41) / 1 g in 1 VIAL (23155-916-31)Marketed from Jan 31, 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)
Ampicillin
Generic name (nonproprietary)
ampicillin injection
Active ingredients
Ampicillin sodium — 1 g/g
Dosage form
Powder, For solution
Route
Intramuscular, Intravenous
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 090354
Marketing start
Listing expires
Other FDA classes
Penicillins (Chemical structure)
Identifiers
Product ID 23155-916_65071c52-ece6-4774-a50f-ce981776b5e6SPL ID 65071c52-ece6-4774-a50f-ce981776b5e6SPL set ID 302e6df7-37c5-4625-8a61-3e2f302addf2RxCUI 1721473, 1721474, 1721475, 1721476UNII JFN36L5S8K

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

N423155091641 followed by a unit qualifier and the quantity

Package 23155-0916-41. 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 Ampicillin for Injection, USP is indicated in the treatment of infections caused by susceptible strains of the designated organisms in the following conditions: Respiratory Tract Infections caused by S treptococcus pneumoniae, Staphylococcus aureus (penicillinase and nonpenicillinase-producing), H. influenzae, and Group A beta-hemolytic Streptococci. Bacterial Meningitis caused by E. coli, Group B Streptococci, and other Gram-negative bacteria (Listeria monocytogenes, N. meningitidis). The addition of an aminoglycoside with ampicillin may increase its effectiveness against Gram-negative bacteria. Septicemia and Endocarditis caused by susceptible Gram-positive organisms …

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under ANDA 090354

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

FDA NDC Directory listings under ANDA 090354
ProductStrengthForm · routeLabelerProduct NDC
AmpicillinAmpicillin sodium 2 g/1Injection, Powder, For solutionIntramuscular, IntravenousWG Critical Care, LLC44567-103
AmpicillinAmpicillin sodium 1 g/1Injection, Powder, For solutionIntramuscular, IntravenousWG Critical Care, LLC44567-102
AmpicillinAmpicillin sodium 250 mg/1Injection, Powder, For solutionIntramuscular, IntravenousWG Critical Care, LLC44567-100
AmpicillinAmpicillin sodium 500 mg/1Injection, Powder, For solutionIntramuscular, IntravenousWG Critical Care, LLC44567-101
Ampicillinampicillin injectionAmpicillin sodium 250 mg/250mgPowder, For solutionIntramuscular, IntravenousHeritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.23155-914
Ampicillinampicillin injectionAmpicillin sodium 500 mg/500mgPowder, For solutionIntramuscular, IntravenousHeritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.23155-915
Ampicillinampicillin injectionAmpicillin sodium 2 g/2gPowder, For solutionIntramuscular, IntravenousHeritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.23155-917
ampicillinAmpicillin sodium 2 g/1Injection, Powder, For solutionIntramuscular, IntravenousSagent Pharmaceuticals25021-137
ampicillinAmpicillin sodium 1 g/1Injection, Powder, For solutionIntramuscular, IntravenousSagent Pharmaceuticals25021-136

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