NDC codes

FDA NDC Directory
Product NDC (as listed)83634-101Labeler and product segments. Claims need a package NDC.
Product NDC at billing width83634-0101Add 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
83634-101-9983634010199836340101991 BOTTLE in 1 CARTON (83634-101-99) / 100 mL in 1 BOTTLEMarketed from Feb 1, 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)
Nafcillin
Generic name (nonproprietary)
nafcillin sodium
Active ingredients
Nafcillin sodium — 10 g/100mL
Dosage form
Injection, Powder, For solution
Route
Intravenous
Labeler
Avenacy Inc.NDC labeler code 83634
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 090005
Marketing start
Listing expires
Other FDA classes
Penicillins (Chemical structure)
Identifiers
Product ID 83634-101_7a4b6e14-65c7-456d-999a-eb8dacaaeeceSPL ID 7a4b6e14-65c7-456d-999a-eb8dacaaeeceSPL set ID 0556378a-b794-4235-ba09-ebdc295e9092RxCUI 239189UNII 49G3001BCK

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

N483634010199 followed by a unit qualifier and the quantity

Package 83634-0101-99. 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 Nafcillin is indicated in the treatment of infections caused by penicillinase-producing staphylococci which have demonstrated susceptibility to the drug. Culture and susceptibility tests should be performed initially to determine the causative organism and its susceptibility to the drug (see CLINICAL PHARMACOLOGY - Susceptibility Testing ). Nafcillin should not be used in infections caused by organisms susceptible to penicillin G. If the susceptibility tests indicate that the infection is due to a methicillin-resistant Staphylococcus spp., therapy with Nafcillin for Injection should be discontinued and alternative therapy provided. To reduce the development of drug-resi…

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 83634-101

What is NDC 83634-101?
83634-101 is the product NDC for Nafcillin (nafcillin sodium), Nafcillin sodium 10 g/100mL injection, powder, for solution, listed with the FDA by Avenacy Inc.. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?
Nafcillin (Nafcillin Sodium).
What is the active ingredient?
Nafcillin sodium.
Who is the labeler?
Avenacy Inc., NDC labeler code 83634. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Nafcillin?
16 other product NDCs are listed under this name. See all Nafcillin 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 Nafcillin NDCs
ProductStrengthForm · routeLabelerProduct NDCPackage NDCs (11-digit)
NafcillinNafcillin sodium 10 g/1Injection, Powder, For solutionIntravenousONESOURCE SPECIALTY PHARMA LIMITED83270-31683270-0316-10
Nafcillinnafcillin sodiumNafcillin sodium 10 g/100mLInjection, Powder, For solutionIntravenousSagent Pharmaceuticals25021-19825021-0198-99
Nafcillinnafcillin sodiumNafcillin sodium 1 g/4mLInjection, Powder, For solutionIntramuscular, IntravenousHeritage Pharmaceuticals Inc. d/b/a/ Avet Pharmaceuticals Inc.23155-90623155-0906-41
Nafcillinnafcillin sodiumNafcillin sodium 2 g/8mLInjection, Powder, For solutionIntramuscular, IntravenousHeritage Pharmaceuticals Inc. d/b/a/ Avet Pharmaceuticals Inc.23155-90723155-0907-41
Nafcillinnafcillin sodiumNafcillin sodium 2 g/8mLInjection, Powder, For solutionIntramuscular, IntravenousNorthStar Rx, LLC72603-45372603-0453-0172603-0453-10
NafcillinNafcillin sodium 10 g/100mLInjection, Powder, For solutionIntravenousNorthStar Rx, LLC72603-56772603-0567-01
NafcillinNafcillin sodium 1 g/1Injection, Powder, For solutionIntramuscular, IntravenousWG Critical Care, LLC44567-22144567-0221-10
NafcillinNafcillin sodium 2 g/1Injection, Powder, For solutionIntramuscular, IntravenousWG Critical Care, LLC44567-22244567-0222-10
Nafcillinnafcillin sodiumNafcillin sodium 1 g/4mLInjection, Powder, For solutionIntramuscular, IntravenousEugia US LLC55150-12255150-0122-15
Nafcillinnafcillin sodiumNafcillin sodium 2 g/8mLInjection, Powder, For solutionIntramuscular, IntravenousEugia US LLC55150-12355150-0123-15

All 17 Nafcillin NDCs

Other NDCs under ANDA 090005

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

FDA NDC Directory listings under ANDA 090005
ProductStrengthForm · routeLabelerProduct NDC
Nafcillinnafcillin sodiumNafcillin sodium 10 g/100mLInjection, Powder, For solutionIntravenousSagent Pharmaceuticals25021-198
NafcillinNafcillin sodium 10 g/1Injection, Powder, For solutionIntravenousWG Critical Care, LLC44567-223
NafcillinNafcillin sodium 10 g/100mLInjection, Powder, For solutionIntravenousFresenius Kabi USA, LLC63323-330
NafcillinNafcillin sodium 10 g/100mLInjection, Powder, For solutionIntravenousNorthStar Rx, LLC72603-567

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