HCPCS drug code · CMS crosswalk
Diphenhydramine HCl J-Code / HCPCS Code
In short
Diphenhydramine HCl is billed under HCPCS J1200 — Injection, diphenhydramine hcl, up to 50 mg. One billing unit is 50 mg. CMS's crosswalk lists 18 Diphenhydramine HCl NDCs under this code.
Reference
- J1200
- Injection, diphenhydramine hcl, up to 50 mgBilling unit: 50 mg
- Labelers
- A-S Medication Solutions; Armas Pharmaceuticals Inc.; Avenacy Inc.; FreseniUS Kabi USA, LLC; HF Acquisition Co. LLC, DBA HealthFirst; Henry Schein Inc.; Heritage Pharmaceuticals Inc.; Hikma Pharmaceuticals USA Inc.and 2 more
Medicare Part B payment limit
CMS ASP fileEffective October 1, 2026 through December 31, 2026. Payment allowance limits subject to the ASP methodology are based on 2Q26 ASP data. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files
Diphenhydramine HCl units and claim line
Enter the dose given to get the J1200 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Diphenhydramine HCl NDCs and billing units
From CMS’s ASP NDC–HCPCS crosswalk, effective October 1, 2026 through December 31, 2026. Billing units per package are CMS’s figures for the code’s unit.
| NDC (11-digit) | HCPCS | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| 00641-0376-25 | J1200 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 25 |
| 63323-0664-01 | J1200 | FreseniUS Kabi USA, LLC | 25 × 1 | 25 |
| 63323-0664-16 | J1200 | FreseniUS Kabi USA, LLC | 25 × 1 | 25 |
| 72485-0101-25 | J1200 | Armas Pharmaceuticals Inc. | 25 × 1 | 25 |
| 76045-0102-10 | J1200 | FreseniUS Kabi USA, LLC | 24 × 1 | 24 |
| 00404-9851-01 | J1200 | Henry Schein Inc. | 1 | 1 |
| 00641-6282-25 | J1200 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 25 |
| 23155-0263-31 | J1200 | Heritage Pharmaceuticals Inc. | 10 | 10 |
| 23155-0264-41 | J1200 | Heritage Pharmaceuticals Inc. | 25 × 1 | 25 |
| 25021-0481-01 | J1200 | Sagent Pharmaceuticals | 25 × 1 | 25 |
| 42571-0337-87 | J1200 | Micro Labs Limited | 25 × 1 | 25 |
| 42571-0511-56 | J1200 | Micro Labs Limited | 10 | 10 |
| 50090-0878-00 | J1200 | A-S Medication Solutions | 1 | 1 |
| 50090-1841-00 | J1200 | A-S Medication Solutions | 25 × 1 | 25 |
| 51662-1219-01 | J1200 | HF Acquisition Co. LLC, DBA HealthFirst | 1 | 1 |
| 51662-1219-03 | J1200 | HF Acquisition Co. LLC, DBA HealthFirst | 25 × 1 | 25 |
| 72485-0101-05 | J1200 | Armas Pharmaceuticals Inc. | 5 × 1 | 5 |
| 83634-0781-01 | J1200 | Avenacy Inc. | 25 × 1 | 25 |
Diphenhydramine HCl: common questions
- What is the J-code for Diphenhydramine HCl?
- Diphenhydramine HCl is billed under HCPCS J1200 — Injection, diphenhydramine hcl, up to 50 mg. One billing unit is 50 mg. CMS's crosswalk lists 18 Diphenhydramine HCl NDCs under this code.
- How many J1200 billing units are in a package of Diphenhydramine HCl?
- CMS lists 1 to 25 billing units per package, depending on the NDC, where one unit is 50 mg. Units to report are based on the dose given, not the package.
- Is J1200 a CPT code?
- No. J1200 is a HCPCS Level II code from CMS for the drug itself. Giving it, for example by injection or infusion, is usually reported with a separate CPT administration code.