Prescription drug · ANDA
Diphenhydramine Hydrochloride NDC 23155-263
Diphenhydramine hydrochloride 50 mg/mL · Injection · Intramuscular, Intravenous · Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.
NDC codes
FDA NDC Directory| Package NDC | 11-digit (billing) | Package | Copy |
|---|---|---|---|
| 23155-263-31 | 23155026331 | 1 VIAL, GLASS in 1 PACKAGE (23155-263-31) / 10 mL in 1 VIAL, GLASSMarketed from Dec 15, 2025 |
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 Hydrochloride
- Generic name (nonproprietary)
- diphenhydramine hydrochloride
- Active ingredients
- Diphenhydramine hydrochloride — 50 mg/mL
- Dosage form
- Injection
- Route
- Intramuscular, Intravenous
- Product type
- Prescription drug
- Marketing category
- ANDA — Abbreviated New Drug Application (generic)Application ANDA 205337
- Marketing start
- Listing expires
- Other FDA classes
- Histamine H1 Receptor Antagonists (Mechanism)
- Identifiers
- Product ID 23155-263_8f3f83d2-d97e-4f82-b3e5-f8840fa6b443SPL ID 8f3f83d2-d97e-4f82-b3e5-f8840fa6b443SPL set ID 6178d3a1-0741-49a4-be81-c4f7d29f8b2aRxCUI 1049633UNII TC2D6JAD40UPC 0323155263312
- 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 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.
- NDC on a medical claim
N423155026331followed by a unit qualifier and the quantityPackage 23155-0263-31. 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 Diphenhydramine hydrochloride injection, USP is effective in adults and pediatric patients, other than premature infants and neonates, for the following conditions when the oral form is impractical. Antihistaminic For amelioration of allergic reactions to blood or plasma, in anaphylaxis as an adjunct to epinephrine and other standard measures after the acute symptoms have been controlled and for other uncomplicated allergic conditions of the immediate type when oral therapy is impossible or contraindicated. Motion Sickness For active treatment of motion sickness. Antiparkinsonism For use in parkinsonism, when oral therapy is impossible or contraindicated, as follows: pa…
Excerpt only. Read the full label for complete information.