What is NDC 0013-1042?

0013-1042 is the product NDC for Estring (estradiol), Estradiol 2 mg/1 system, listed with the FDA by Pfizer Laboratories Div Pfizer Inc. It has 1 package NDC, shown above in 10- and 11-digit form.

Pfizer Laboratories Div Pfizer Inc, NDC labeler code 0013. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Estring?

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.

Estring NDC 0013-1042 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)0013-1042Labeler and product segments. Claims need a package NDC.

Product NDC at billing width00013-1042Add 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
0013-1042-01	00013104201	1 POUCH in 1 CARTON (0013-1042-01) / 1 SYSTEM in 1 POUCHMarketed from Jun 5, 2023

How the 11-digit form is made: The labeler segment has 4 digits, so one leading zero is added to it (4-4-2 → 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): Estring
Generic name (nonproprietary): estradiol
Active ingredients: Estradiol — 2 mg/1
Dosage form: System
Route: Vaginal
Labeler: Pfizer Laboratories Div Pfizer IncNDC labeler code 0013
Product type: Prescription drug
Marketing category: NDA — New Drug ApplicationApplication NDA 020472
Marketing start: Jun 5, 2023
Listing expires: Dec 31, 2027
Other FDA classes: Estradiol Congeners (Chemical structure)Estrogen Receptor Agonists (Mechanism)
Identifiers: Product ID 0013-1042_a7184faa-345a-46c5-82b5-badd9887a6e9SPL ID a7184faa-345a-46c5-82b5-badd9887a6e9SPL set ID 110b9865-5a07-4d45-b560-e89947f12600RxCUI 848328, 848330UNII 4TI98Z838E
Pharmacologic class: Estrogen

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.

NDC on a medical claim

N400013104201 followed by a unit qualifier and the quantity

Package 00013-1042-01. 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 Apr 23, 2026.

Indications (excerpt from the label)

INDICATIONS AND USAGE ESTRING is indicated for the treatment of moderate to severe symptoms of vulvar and vaginal atrophy due to menopause.

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 0013-1042

What is NDC 0013-1042?: 0013-1042 is the product NDC for Estring (estradiol), Estradiol 2 mg/1 system, listed with the FDA by Pfizer Laboratories Div Pfizer Inc. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Estring (Estradiol).
What is the active ingredient?: Estradiol.
Who is the labeler?: Pfizer Laboratories Div Pfizer Inc, NDC labeler code 0013. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Estring?: 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.

Estring (Estradiol) NDC 0013-1042