NDC codes

FDA NDC Directory
Product NDC (as listed)33342-426Labeler and product segments. Claims need a package NDC.
Product NDC at billing width33342-0426Add 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
33342-426-073334204260730 TABLET in 1 BOTTLE (33342-426-07)Marketed from Jul 1, 2026
33342-426-103334204261090 TABLET in 1 BOTTLE (33342-426-10)Marketed from Jul 1, 2026
33342-426-1133342042611100 TABLET in 1 BOTTLE (33342-426-11)Marketed from Jul 1, 2026
33342-426-44333420426441000 TABLET in 1 BOTTLE (33342-426-44)Marketed from Jul 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)
Chlorthalidone
Generic name (nonproprietary)
chlorthalidone
Active ingredients
Chlorthalidone — 50 mg/1
Dosage form
Tablet
Route
Oral
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 212229
Marketing start
Listing expires
Other FDA classes
Increased Diuresis (Physiologic effect)
Identifiers
Product ID 33342-426_5de362df-8fb9-4421-864c-7ea06339d6e7SPL ID 5de362df-8fb9-4421-864c-7ea06339d6e7SPL set ID 5de362df-8fb9-4421-864c-7ea06339d6e7RxCUI 197499, 197500UNII Q0MQD1073QUPC 0333342426116, 0333342426444, 0333342425072
Pharmacologic class
Thiazide-like Diuretic

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

N433342042607 followed by a unit qualifier and the quantity

Package 33342-0426-07. 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 Diuretics such as chlorthalidone are indicated in the management of hypertension either as the sole therapeutic agent or to enhance the effect of other antihypertensive drugs in the more severe forms of hypertension. Chlorthalidone is indicated as adjunctive therapy in edema associated with congestive heart failure, hepatic cirrhosis, and corticosteroid and estrogen therapy. Chlorthalidone has also been found useful in edema due to various forms of renal dysfunction, such as nephrotic syndrome, acute glomerulonephritis, and chronic renal failure. Usage in Pregnancy The routine use of diuretics in an otherwise healthy woman is inappropriate and exposes mother and fetus t…

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under ANDA 212229

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

FDA NDC Directory listings under ANDA 212229
ProductStrengthForm · routeLabelerProduct NDC
ChlorthalidoneChlorthalidone 25 mg/1TabletOralMacleods Pharmaceuticals Limited33342-425

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