In short

Aprepitant is billed under HCPCS J8501 — Aprepitant, oral, 5 mg. One billing unit is 5 mg. CMS's crosswalk lists 24 Aprepitant NDCs under this code.

J8501 code details

Reference

J8501
Aprepitant, oral, 5 mgBilling unit: 5 mg
Labelers
BluePoint Laboratories; Glenmark Pharmaceuticals Inc., USA; Sandoz Inc.; Torrent Pharmaceuticals Limited

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$2.511
Per5 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

Aprepitant units and claim line

Enter the dose given to get the J8501 units and the NDC line for the CMS-1500 and the 837P.

Enter the dose given to build the claim line.

Aprepitant 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.

Aprepitant NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
00781-2321-06J8501Sandoz Inc.18
00781-2321-51J8501Sandoz Inc.540
00781-2322-46J8501Sandoz Inc.232
00781-2322-68J8501Sandoz Inc.696
00781-2323-68J8501Sandoz Inc.6150
00781-4063-36J8501Sandoz Inc.357
13668-0591-81J8501Torrent Pharmaceuticals Limited18
13668-0591-82J8501Torrent Pharmaceuticals Limited540
13668-0592-84J8501Torrent Pharmaceuticals Limited232
13668-0592-86J8501Torrent Pharmaceuticals Limited696
13668-0593-86J8501Torrent Pharmaceuticals Limited6150
13668-0594-87J8501Torrent Pharmaceuticals Limited357
68001-0666-01J8501BluePoint Laboratories18
68001-0666-17J8501BluePoint Laboratories540
68001-0667-01J8501BluePoint Laboratories232
68001-0667-19J8501BluePoint Laboratories696
68001-0668-19J8501BluePoint Laboratories6150
68001-0669-15J8501BluePoint Laboratories357
68462-0112-33J8501Glenmark Pharmaceuticals Inc., USA357
68462-0583-40J8501Glenmark Pharmaceuticals Inc., USA18
68462-0583-85J8501Glenmark Pharmaceuticals Inc., USA540
68462-0584-58J8501Glenmark Pharmaceuticals Inc., USA232
68462-0584-76J8501Glenmark Pharmaceuticals Inc., USA696
68462-0585-76J8501Glenmark Pharmaceuticals Inc., USA6150

Aprepitant: common questions

What is the J-code for Aprepitant?
Aprepitant is billed under HCPCS J8501 — Aprepitant, oral, 5 mg. One billing unit is 5 mg. CMS's crosswalk lists 24 Aprepitant NDCs under this code.
How many J8501 billing units are in a package of Aprepitant?
CMS lists 8 to 150 billing units per package, depending on the NDC, where one unit is 5 mg. Units to report are based on the dose given, not the package.
Is J8501 a CPT code?
No. J8501 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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