No. J2865 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 J2865?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 9 NDCs under J2865, for Sulfamethoxazole-Trimethoprim. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J2865?

$0.034 per 5mg-1mg, 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.

J2865 J-Code: Sulfamethoxazole 5 mg and trimethoprim 1 mg

In short

J2865 is the HCPCS Level II code for injection, sulfamethoxazole 5 mg and trimethoprim 1 mg. CMS assigns NDCs for Sulfamethoxazole-Trimethoprim to it. The Medicare Part B payment limit is $0.034 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ2865

Billing unitSee descriptor

Descriptor: Injection, sulfamethoxazole 5 mg and trimethoprim 1 mg
Short descriptor: Inj sulfameth/trim 5 mg/1 mg
Code set: HCPCS Level II, maintained by CMS
Effective: Apr 1, 2025

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$0.034

Per5mg-1mg

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 J2865

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 9 NDCs to J2865 for Sulfamethoxazole-Trimethoprim. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J2865 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Sulfamethoxazole-Trimethoprim	00703-9503-03	Teva Parenteral Medicines, Inc.	10 × 5	800
Sulfamethoxazole-Trimethoprim	00703-9514-03	Teva Parenteral Medicines, Inc.	10 × 10	1,600
Sulfamethoxazole-Trimethoprim	00703-9514-83	Teva Parenteral Medicines, Inc.	10 × 10	1,600
Sulfamethoxazole-Trimethoprim	00703-9514-93	Teva Parenteral Medicines, Inc.	10 × 10	1,600
Sulfamethoxazole-Trimethoprim	00703-9526-01	Teva Parenteral Medicines, Inc.	30	480
Sulfamethoxazole-Trimethoprim	70069-0361-10	Somerset Pharma, LLC	10 × 5	800
Sulfamethoxazole-Trimethoprim	70069-0362-10	Somerset Pharma, LLC	10 × 10	1,600
Sulfamethoxazole-Trimethoprim	70069-0363-01	Somerset Pharma, LLC	30	480
Sulfamethoxazole/Trimethoprim	00703-9526-81	Teva Parenteral Medicines, Inc.	30	480

J2865: common questions

Is J2865 a CPT code?: No. J2865 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 J2865?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 9 NDCs under J2865, for Sulfamethoxazole-Trimethoprim. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J2865?: $0.034 per 5mg-1mg, 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.

J2865 — Injection, sulfamethoxazole 5 mg and trimethoprim 1 mg