NDC codes

FDA NDC Directory
Product NDC (as listed)10135-831Labeler and product segments. Claims need a package NDC.
Product NDC at billing width10135-0831Add 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
10135-831-0110135083101100 TABLET in 1 BOTTLE (10135-831-01)Marketed from Feb 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)
Acetazolamide
Generic name (nonproprietary)
acetazolamide
Active ingredients
Acetazolamide — 250 mg/1
Dosage form
Tablet
Route
Oral
Labeler
Marlex Pharmaceuticals, Inc.NDC labeler code 10135
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 217197
Marketing start
Listing expires
Other FDA classes
Carbonic Anhydrase Inhibitors (Mechanism)Sulfonamides (Chemical structure)
Identifiers
Product ID 10135-831_4a03f386-e570-d4cb-e063-6394a90a8228SPL ID 4a03f386-e570-d4cb-e063-6394a90a8228SPL set ID 4a03f35d-bfcb-77ff-e063-6294a90a4f06RxCUI 197303, 197304UNII O3FX965V0I
Pharmacologic class
Carbonic Anhydrase Inhibitor

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

N410135083101 followed by a unit qualifier and the quantity

Package 10135-0831-01. 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 For adjunctive treatment of: edema due to congestive heart failure; drug-induced edema; centrencephalic epilepsies (petit mal, unlocalized seizures); chronic simple (open-angle) glaucoma, secondary glaucoma, and preoperatively in acute angle-closure glaucoma where delay of surgery is desired in order to lower intraocular pressure. Acetazolamide Tablets are also indicated for the prevention or amelioration of symptoms associated with acute mountain sickness in climbers attempting rapid ascent and in those who are very susceptible to acute mountain sickness despite gradual ascent.

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 10135-831

What is NDC 10135-831?
10135-831 is the product NDC for Acetazolamide, Acetazolamide 250 mg/1 tablet, listed with the FDA by Marlex Pharmaceuticals, Inc.. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?
Acetazolamide.
What is the active ingredient?
Acetazolamide.
Who is the labeler?
Marlex Pharmaceuticals, Inc., NDC labeler code 10135. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Acetazolamide?
71 other product NDCs are listed under this name. See all Acetazolamide 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 Acetazolamide NDCs
ProductStrengthForm · routeLabelerProduct NDCPackage NDCs (11-digit)
Acetazolamideacetazolamide sodiumAcetazolamide sodium 500 mg/5mLInjection, Powder, Lyophilized, For solutionIntravenousMylan Institutional LLC72078-09272078-0092-50
AcetazolamideAcetazolamide 500 mg/1Capsule, Extended releaseOralREMEDYREPACK INC.70518-464670518-4646-00
AcetazolamideAcetazolamide 125 mg/1TabletOralMarlex Pharmaceuticals, Inc.10135-83010135-0830-01
Acetazolamideacetazolamide sodiumAcetazolamide sodium 500 mg/5mLInjection, Powder, For solutionIntravenousSagent Pharmaceuticals25021-83925021-0839-20
AcetazolamideAcetazolamide sodium 500 mg/5mLInjection, Powder, Lyophilized, For solutionIntravenousGland Pharma Limited68083-66168083-0661-01
AcetazolamideAcetazolamide 125 mg/1TabletOralAurobindo Pharma Limited59651-90559651-0905-01
AcetazolamideAcetazolamide 250 mg/1TabletOralAurobindo Pharma Limited59651-90659651-0906-01
AcetazolamideAcetazolamide 125 mg/1TabletOralAarkish Pharmaceuticals NJ Inc.81005-10481005-0104-0181005-0104-10
AcetazolamideAcetazolamide 250 mg/1TabletOralAarkish Pharmaceuticals NJ Inc.81005-10581005-0105-0181005-0105-10
AcetazolamideAcetazolamide 125 mg/1TabletOralAjanta Pharma USA Inc.27241-13227241-0132-04

All 72 Acetazolamide NDCs

Other NDCs under ANDA 217197

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

FDA NDC Directory listings under ANDA 217197
ProductStrengthForm · routeLabelerProduct NDC
AcetazolamideAcetazolamide 125 mg/1TabletOralMarlex Pharmaceuticals, Inc.10135-830
AcetazolamideAcetazolamide 125 mg/1TabletOralAarkish Pharmaceuticals NJ Inc.81005-104
AcetazolamideAcetazolamide 250 mg/1TabletOralAarkish Pharmaceuticals NJ Inc.81005-105

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