In short

CMS assigns Acetylcysteine NDCs to 2 HCPCS codes: J0132 (per 100 mg), J7608 (per 1 gm). Which one applies depends on the product; the table lists each NDC with its code.

J0132 code detailsJ7608 code details

Reference

J0132
Injection, acetylcysteine, 100 mgBilling unit: 100 mg
J7608
Acetylcysteine, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per gramBilling unit: 1 gm
Labelers
American Regent, Inc.; Cameron Pharmaceuticals, LLC; Eugia US LLC; FreseniUS Kabi USA, LLC; Glenmark Pharmaceuticals Inc., USA; Hikma Pharmaceuticals USA Inc.; Padagis US LLC; Pfizer Incand 3 more

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$0.499
Per100 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

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$6.398
Per1 gm
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

Acetylcysteine units and claim line

Enter the dose given to get the J0132 units and the NDC line for the CMS-1500 and the 837P. This builds the J0132 line; use the code page for J7608.

Enter the dose given to build the claim line.

Acetylcysteine 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.

Acetylcysteine NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
00143-9433-04J0132Hikma Pharmaceuticals USA Inc.4 × 30240
00574-0805-30J0132Padagis US LLC4 × 30240
25021-0812-30J0132Sagent Pharmaceuticals4 × 30240
25021-0812-66J0132Sagent Pharmaceuticals4 × 30240
55150-0259-30J0132Eugia US LLC4 × 30240
63323-0963-30J0132FreseniUS Kabi USA, LLC4 × 30240
63323-0963-44J0132FreseniUS Kabi USA, LLC4 × 30240
68462-0946-12J0132Glenmark Pharmaceuticals Inc., USA4 × 30240
70069-0788-04J0132Somerset Pharma, LLC4 × 30240
70594-0111-02J0132Xellia Pharmaceuticals USA, LLC.4 × 30240
00409-3307-03J7608Pfizer Inc3 × 309
00409-3308-03J7608Pfizer Inc3 × 3018
00517-7504-25J7608American Regent, Inc.25 × 410
00517-7604-25J7608American Regent, Inc.25 × 420
42494-0435-25J7608Cameron Pharmaceuticals, LLC25 × 410
42494-0436-25J7608Cameron Pharmaceuticals, LLC25 × 420
63323-0690-30J7608FreseniUS Kabi USA, LLC3 × 3018
63323-0690-44J7608FreseniUS Kabi USA, LLC3 × 3018
63323-0691-30J7608FreseniUS Kabi USA, LLC3 × 309
63323-0692-10J7608FreseniUS Kabi USA, LLC3 × 106
63323-0693-10J7608FreseniUS Kabi USA, LLC3 × 103
63323-0694-04J7608FreseniUS Kabi USA, LLC25 × 420
63323-0694-44J7608FreseniUS Kabi USA, LLC25 × 420
63323-0695-04J7608FreseniUS Kabi USA, LLC25 × 410
70069-0018-25J7608Somerset Pharma, LLC25 × 410
70069-0019-25J7608Somerset Pharma, LLC25 × 420
70069-0020-03J7608Somerset Pharma, LLC3 × 3018

Acetylcysteine: common questions

What is the J-code for Acetylcysteine?
CMS assigns Acetylcysteine NDCs to 2 HCPCS codes: J0132 (per 100 mg), J7608 (per 1 gm). Which one applies depends on the product; the table lists each NDC with its code.
How many J0132 billing units are in a package of Acetylcysteine?
CMS lists 240 billing units per package, depending on the NDC, where one unit is 100 mg. Units to report are based on the dose given, not the package.
How many J7608 billing units are in a package of Acetylcysteine?
CMS lists 3 to 20 billing units per package, depending on the NDC, where one unit is 1 gm. Units to report are based on the dose given, not the package.
Is J0132 a CPT code?
No. J0132 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.

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