What is NDC 21586-031?

21586-031 is the product NDC for Claforan (cefotaxime), Cefotaxime sodium 1 g/1 injection, powder, for solution, listed with the FDA by SteriMax Inc.. It has 1 package NDC, shown above in 10- and 11-digit form.

SteriMax Inc., NDC labeler code 21586. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Claforan?

None: this is the only finished product listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Claforan NDC 21586-031 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)21586-031Labeler and product segments. Claims need a package NDC.

Product NDC at billing width21586-0031Add 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 NDC	11-digit (billing)	Package	Copy
21586-031-02	21586003102	10 VIAL in 1 CARTON (21586-031-02) / 1 INJECTION, POWDER, FOR SOLUTION in 1 VIAL (21586-031-01)Marketed from Oct 1, 2026

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): Claforan
Generic name (nonproprietary): cefotaxime
Active ingredients: Cefotaxime sodium — 1 g/1
Dosage form: Injection, Powder, For solution
Route: Intramuscular, Intravenous
Labeler: SteriMax Inc.NDC labeler code 21586
Product type: Prescription drug
Marketing category: NDA — New Drug ApplicationApplication NDA 050547
Marketing start: Oct 1, 2026
Listing expires: Dec 31, 2027
Other FDA classes: Cephalosporins (Chemical structure)
Identifiers: Product ID 21586-031_f03f3e64-fa62-4c69-a71e-086c58fc846fSPL ID f03f3e64-fa62-4c69-a71e-086c58fc846f
Pharmacologic class: Cephalosporin 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 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

N421586003102 followed by a unit qualifier and the quantity

Package 21586-0031-02. 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

The FDA listing for this product does not reference a label (SPL) set.

About NDC 21586-031

What is NDC 21586-031?: 21586-031 is the product NDC for Claforan (cefotaxime), Cefotaxime sodium 1 g/1 injection, powder, for solution, listed with the FDA by SteriMax Inc.. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Claforan (Cefotaxime).
What is the active ingredient?: Cefotaxime sodium.
Who is the labeler?: SteriMax Inc., NDC labeler code 21586. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Claforan?: None: this is the only finished product listed under this name.
Is there a related HCPCS / J-code?: Not in Med-Code's curated HCPCS directory. See Billing references above.

Claforan (Cefotaxime) NDC 21586-031