No. J1790 is a HCPCS Level II code, maintained by CMS, that identifies the drug supplied. CPT codes are five-digit numbers from the AMA that describe services. Giving the drug, for example an injection or infusion, is usually reported with a separate CPT administration code.

What NDCs are billed under J1790?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 2 NDCs under J1790, for Droperidol. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J1790?

$5.348 per up to 5 mg, effective October 1, 2026 through December 31, 2026, from CMS's Part B drug payment limit file. Multiply by the units billed for the allowed amount before deductible and coinsurance. It is not a coverage decision.

J1790 J-Code: Droperidol — Billing Units & NDCs

In short

J1790 is the HCPCS Level II code for injection, droperidol, up to 5 mg. CMS assigns NDCs for Droperidol to it. The Medicare Part B payment limit is $5.348 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ1790

Billing unitSee descriptor

Descriptor: Injection, droperidol, up to 5 mg
Short descriptor: Droperidol injection
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 1, 1997

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$5.348

Perup to 5 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

Units and claim line

Enter the dose to get the units and the NDC line for the CMS-1500 and the 837P.

HCPCS units

Modifier

NDC (11-digit)

NDC unit qualifier

NDC quantity

Enter the units to build the claim line.

NDCs billed under J1790

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 2 NDCs to J1790 for Droperidol. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J1790 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Droperidol	00143-9514-25	Hikma Pharmaceuticals USA Inc.	25 × 2	25
Droperidol	00143-9515-25	Hikma Pharmaceuticals USA Inc.	25 × 1	25

J1790: common questions

Is J1790 a CPT code?: No. J1790 is a HCPCS Level II code, maintained by CMS, that identifies the drug supplied. CPT codes are five-digit numbers from the AMA that describe services. Giving the drug, for example an injection or infusion, is usually reported with a separate CPT administration code. CPT codes for drug administration.
What NDCs are billed under J1790?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 2 NDCs under J1790, for Droperidol. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J1790?: $5.348 per up to 5 mg, effective October 1, 2026 through December 31, 2026, from CMS's Part B drug payment limit file. Multiply by the units billed for the allowed amount before deductible and coinsurance. It is not a coverage decision.

J1790 — Injection, droperidol, up to 5 mg