In short

Tepylute is billed under HCPCS J9341 — Injection, thiotepa (tepylute), 1 mg. One billing unit is 1 mg. CMS's crosswalk lists 2 Tepylute NDCs under this code.

J9341 code details

Reference

J9341
Injection, thiotepa (tepylute), 1 mgBilling unit: 1 mg
Labelers
Shorla Oncology Inc.

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$37.841
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

Tepylute units and claim line

Enter the dose given to get the J9341 units and the NDC line for the CMS-1500 and the 837P.

Enter the dose given to build the claim line.

Tepylute 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.

Tepylute NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
81927-0105-01J9341Shorla Oncology Inc.1.515
81927-0106-01J9341Shorla Oncology Inc.10100

Tepylute: common questions

What is the J-code for Tepylute?
Tepylute is billed under HCPCS J9341 — Injection, thiotepa (tepylute), 1 mg. One billing unit is 1 mg. CMS's crosswalk lists 2 Tepylute NDCs under this code.
How many J9341 billing units are in a package of Tepylute?
CMS lists 15 to 100 billing units per package, depending on the NDC, where one unit is 1 mg. Units to report are based on the dose given, not the package.
Is J9341 a CPT code?
No. J9341 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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