In short

J1938 is the HCPCS Level II code for injection, furosemide, 1 mg. CMS assigns NDCs for Furosemide to it. One billing unit is 1 mg. The Medicare Part B payment limit is $0.018 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file
HCPCS codeJ1938
Billing unit1 mg
Descriptor
Injection, furosemide, 1 mg
Short descriptor
Inj, furosemide, 1 mg
Code set
HCPCS Level II, maintained by CMS
Effective
Apr 1, 2025

The billing unit is read from the descriptor. Confirm it against the CMS file before billing.

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$0.018
Per1 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

Units = dose given ÷ 1 mg. For example, 100 mg is 100 units. Enter the dose to get the units and the NDC line for the CMS-1500 and the 837P.

Enter the dose given to build the claim line.

NDCs billed under J1938

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 57 NDCs to J1938 for Furosemide. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J1938 in the CMS ASP crosswalk
DrugNDC (11-digit)LabelerPackageBilling units per package
Furosemide00143-9155-25Hikma Pharmaceuticals USA Inc.25 × 2500
Furosemide00143-9156-10Hikma Pharmaceuticals USA Inc.10 × 4400
Furosemide00143-9157-10Hikma Pharmaceuticals USA Inc.10 × 101,000
Furosemide00143-9158-01Hikma Pharmaceuticals USA Inc.50500
Furosemide00143-9159-01Hikma Pharmaceuticals USA Inc.1001,000
Furosemide00404-9861-10Henry Schein Inc.10100
Furosemide00404-9862-10Henry Schein Inc.10100
Furosemide00404-9863-04Henry Schein Inc.440
Furosemide00404-9864-02Henry Schein Inc.220
Furosemide00409-6102-02Pfizer Inc25 × 2500
Furosemide00409-6102-04Pfizer Inc25 × 41,000
Furosemide00409-6102-10Pfizer Inc25 × 102,500
Furosemide16729-0500-08Accord Healthcare Inc25 × 2500
Furosemide16729-0501-43Accord Healthcare Inc10 × 4400
Furosemide16729-0502-43Accord Healthcare Inc10 × 101,000
Furosemide23155-0473-41Heritage Pharmaceuticals Inc.25 × 2500
Furosemide23155-0473-42Heritage Pharmaceuticals Inc.25 × 41,000
Furosemide23155-0473-44Heritage Pharmaceuticals Inc.25 × 102,500
Furosemide25021-0311-02Sagent Pharmaceuticals25 × 2500
Furosemide25021-0311-04Sagent Pharmaceuticals25 × 41,000
Furosemide25021-0311-10Sagent Pharmaceuticals25 × 102,500
Furosemide25021-0320-02Sagent Pharmaceuticals25 × 2500
Furosemide25021-0320-04Sagent Pharmaceuticals25 × 41,000
Furosemide25021-0320-10Sagent Pharmaceuticals25 × 102,500
Furosemide36000-0282-25Baxter Healthcare Corporation25 × 2500
Furosemide36000-0283-25Baxter Healthcare Corporation25 × 41,000
Furosemide36000-0284-25Baxter Healthcare Corporation25 × 102,500
Furosemide51662-1226-03HF Acquisition Co. LLC, DBA HealthFirst25 × 102,500
Furosemide51662-1227-01HF Acquisition Co. LLC, DBA HealthFirst220
Furosemide51662-1572-01HF Acquisition Co. LLC, DBA HealthFirst220
Furosemide51662-1572-03HF Acquisition Co. LLC, DBA HealthFirst25 × 2500
Furosemide51662-1574-01HF Acquisition Co. LLC, DBA HealthFirst440
Furosemide51662-1574-03HF Acquisition Co. LLC, DBA HealthFirst25 × 41,000
Furosemide51662-1575-01HF Acquisition Co. LLC, DBA HealthFirst10100
Furosemide55150-0322-25Eugia US LLC25 × 2500
Furosemide55150-0323-25Eugia US LLC25 × 41,000
Furosemide55150-0324-25Eugia US LLC25 × 102,500
Furosemide63323-0280-02FreseniUS Kabi USA, LLC25 × 2500
Furosemide63323-0280-04FreseniUS Kabi USA, LLC25 × 41,000
Furosemide63323-0280-10FreseniUS Kabi USA, LLC25 × 102,500
Furosemide63323-0280-16FreseniUS Kabi USA, LLC25 × 2500
Furosemide63323-0280-26FreseniUS Kabi USA, LLC25 × 41,000
Furosemide63323-0280-36FreseniUS Kabi USA, LLC25 × 102,500
Furosemide70121-1076-05Amneal Pharmaceuticals, LLC25 × 102,500
Furosemide70860-0302-02Athenex Pharmaceutical Division, LLC25 × 2500
Furosemide70860-0302-10Athenex Pharmaceutical Division, LLC25 × 102,500
Furosemide71288-0203-03Meitheal Pharmaceuticals Inc.25 × 2500
Furosemide71288-0203-05Meitheal Pharmaceuticals Inc.25 × 41,000
Furosemide71288-0203-11Meitheal Pharmaceuticals Inc.25 × 102,500
Furosemide72572-0190-25Civica, Inc.25 × 41,000
Furosemide72603-0133-25Northstar RxLLC25 × 2500
Furosemide72603-0251-25Northstar RxLLC25 × 41,000
Furosemide72603-0474-25Northstar RxLLC25 × 102,500
Furosemide81565-0201-02Phlow Corporation25 × 2500
Furosemide83634-0302-02Avenacy Inc.25 × 2500
Furosemide83634-0302-04Avenacy Inc.25 × 41,000
Furosemide83634-0302-10Avenacy Inc.25 × 102,500

J1938: common questions

Is J1938 a CPT code?
No. J1938 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 J1938?
CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 57 NDCs under J1938, for Furosemide. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J1938?
$0.018 per 1 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.
What is one billing unit of J1938?
One unit of J1938 is 1 mg, as stated in the code's descriptor. Units to report = dose given ÷ 1 mg. J-code billing units.

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