In short

J0742 is the HCPCS Level II code for injection, imipenem 4 mg, cilastatin 4 mg and relebactam 2 mg. CMS assigns NDCs for Recarbrio to it. The Medicare Part B payment limit is $2.696 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file
HCPCS codeJ0742
Billing unitSee descriptor
Descriptor
Injection, imipenem 4 mg, cilastatin 4 mg and relebactam 2 mg
Short descriptor
Inj imip 4 cilas 4 releb 2mg
Code set
HCPCS Level II, maintained by CMS
Effective
Jul 1, 2020

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$2.696
Per4 mg-4 mg-2 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.

Enter the units to build the claim line.

NDCs billed under J0742

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 1 NDC to J0742 for Recarbrio. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J0742 in the CMS ASP crosswalk
DrugNDC (11-digit)LabelerPackageBilling units per package
Recarbrio00006-3856-02Merck Sharp & Dohme LLC25 × 13,125

J0742: common questions

Is J0742 a CPT code?
No. J0742 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 J0742?
CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 1 NDC under J0742, for Recarbrio. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J0742?
$2.696 per 4 mg-4 mg-2 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.

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