NDC codes

FDA NDC Directory
Product NDC (as listed)71741-511Labeler and product segments. Claims need a package NDC.
Product NDC at billing width71741-0511Add 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
71741-511-0471741051104118 mL in 1 BOTTLE (71741-511-04)Marketed from Jul 22, 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)
Diphenhydramine HCL
Generic name (nonproprietary)
diphenhydramine hydrochloride
Active ingredients
Diphenhydramine hydrochloride — 12.5 mg/5mL
Dosage form
Solution
Route
Oral
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 087513
Marketing start
Listing expires
Other FDA classes
Histamine H1 Receptor Antagonists (Mechanism)
Identifiers
Product ID 71741-511_b70e7c6f-aaf1-40dd-8e7b-09215db5b4acSPL ID b70e7c6f-aaf1-40dd-8e7b-09215db5b4acSPL set ID d8944f3c-acef-4ebe-9633-7d641ae95edfRxCUI 1049906UNII TC2D6JAD40
Pharmacologic class
Histamine-1 Receptor Antagonist

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

N471741051104 followed by a unit qualifier and the quantity

Package 71741-0511-04. 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

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