HCPCS drug code · CMS crosswalk
Phenergan J-Code / HCPCS Code
In short
Phenergan is billed under HCPCS J2550 — Injection, promethazine hcl, up to 50 mg. One billing unit is 50 mg. CMS's crosswalk lists 4 Phenergan NDCs under this code.
Reference
- J2550
- Injection, promethazine hcl, up to 50 mgBilling unit: 50 mg
- Labelers
- Hikma Pharmaceuticals USA Inc.
Medicare Part B payment limit
CMS ASP filePayment limit per unit$3.241
Per50 mg
Coinsurance20%
Effective 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
Phenergan units and claim line
Enter the dose given to get the J2550 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Phenergan 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 |
|---|---|---|---|---|
| 00641-6082-25 | J2550 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 13 |
| 00641-6083-25 | J2550 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 25 |
| 00641-6084-25 | J2550 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 13 |
| 00641-6085-25 | J2550 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 25 |
Phenergan: common questions
- What is the J-code for Phenergan?
- Phenergan is billed under HCPCS J2550 — Injection, promethazine hcl, up to 50 mg. One billing unit is 50 mg. CMS's crosswalk lists 4 Phenergan NDCs under this code.
- How many J2550 billing units are in a package of Phenergan?
- CMS lists 13 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 J2550 a CPT code?
- No. J2550 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.