Nafcillin Injection, Powder, For Solution
NDC Package 83634-101-99

View Billable Units, 11-Digit Conversion Format, and RxNorm mappings
Table of Contents
    1. Package Information
    2. Frequently Asked Questions

Package Information

Nafcillin (nafcillin sodium) injection is a medication used to treat a wide variety of bacterial infections. This formulation utilizes a injection, powder, for solution delivery system. Marketed by Avenacy Inc., this product is identified by NDC 83634-101 and is authorized under FDA application ANDA090005.

Identification & Billing

NDC Package Code
83634-101-99
Package Description
1 BOTTLE in 1 CARTON / 100 mL in 1 BOTTLE
Product Code
83634-101
11-Digit Billing Format
83634010199
Billing Unit
EA - Billing unit of "each" is used when the product is dispensed in discreet units.
Units Per Package
1 EA
RxNorm Crosswalk
  • RxCUI: 239189 - nafcillin 100 MG/ML Injectable Solution
  • RxCUI: 239189 - nafcillin (as nafcillin sodium) 100 MG/ML Injectable Solution

Clinical Specifications

Proprietary Name
Nafcillin
Non-Proprietary Name
Nafcillin Sodium
Substance Name
Nafcillin Sodium
Dosage Form
Injection, Powder, For Solution - A sterile preparation intended for reconstitution to form a solution for parenteral use.
Administration Route
Intravenous - Administration within or into a vein or veins.
Active Ingredient(s)
NAFCILLIN SODIUM 10 g/100mL
Pharmacologic Class
Usage Information
This medication is used to treat a wide variety of bacterial infections. This medication is known as a penicillin-type antibiotic. It works by stopping the growth of bacteria.

Regulatory & Marketing

Labeler Name
Avenacy Inc.
Product Type
Human Prescription Drug
FDA Application #
ANDA090005
Marketing Category
ANDA - A product marketed under an approved Abbreviated New Drug Application.
Start Marketing Date
02-01-2025
Listing Expiration
12-31-2026
Exclude Flag
N
Sample Package
No

Hierarchy Structure

Code Lineage

The NDC Directory contains ONLY information on final marketed drugs submitted to FDA electronically by labelers. A labeler might be a manufacturer, re-packager or re-labeler. The product information included in the NDC directory does not indicate that FDA has verified the information provided by the product labeler. Assigned NDC numbers are not in any way an indication of FDA approval of the product.

* Please review the full disclaimer at the bottom of this page.

Frequently Asked Questions

What is the distribution configuration for this product package?

The code 83634-101-99 identifies a specific commercial package of 1 bottle in 1 carton / 100 ml in 1 bottle of Nafcillin, a human prescription drug labeled by Avenacy Inc.. This product is billed for "EA" each discreet unit and contains an estimated amount of 1 billable units per package. This injection, powder, for solution is formulated for intravenous use and contains nafcillin sodium as the active substance.

Is this product currently listed with the FDA?

Yes, this product is active and verified within the NDC Directory. It was introduced to the market by Avenacy Inc. on February 01, 2025. The current certification is valid through December 31, 2026.

What are the primary indications for this medication?

This medication is used to treat a wide variety of bacterial infections. This medication is known as a penicillin-type antibiotic. It works by stopping the growth of bacteria.

How is this Avenacy Inc. product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 83634010199. Quantities are measured in per "each", products billed on a per each basis are usually products dispensed in discreet units.. There are 1 total billable units per package. The table below illustrates the segment conversion from the 10-digit labeler code to the 11-digit provider format.

11-Digit Code Conversion

Billing payers usually require a 5-4-2 segment configuration. Below is the conversion from the 10-digit package format to the 11-digit billing format:

10-Digit Format (5-3-2)
83634-101-99
11-Digit CMS (5-4-2)
83634-0101-99

Note: The zero is added to the Product segment to maintain the 5-4-2 structure.