No. J9029 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.

What NDCs are billed under J9029?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 1 NDC under J9029, for Adstiladrin. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J9029?

$65,200.563 per per therapeutic dose, 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.

J9029 J-Code: Adstiladrin (intravesical instillation)

In short

J9029 is the HCPCS Level II code for intravesical instillation, nadofaragene firadenovec-vncg, per therapeutic dose. CMS assigns NDCs for Adstiladrin to it. The Medicare Part B payment limit is $65,200.563 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ9029

Billing unitSee descriptor

Descriptor: Intravesical instillation, nadofaragene firadenovec-vncg, per therapeutic dose
Short descriptor: Instill adstiladrin, tx dose
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 1, 2024

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$65,200.563

Perper therapeutic dose

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.

HCPCS units

Modifier

NDC (11-digit)

NDC unit qualifier

NDC quantity

Enter the units to build the claim line.

NDCs billed under J9029

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 1 NDC to J9029 for Adstiladrin. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J9029 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Adstiladrin	55566-1050-01	Ferring Pharmaceuticals Inc.	4 × 20	1

J9029: common questions

Is J9029 a CPT code?: No. J9029 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 J9029?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 1 NDC under J9029, for Adstiladrin. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J9029?: $65,200.563 per per therapeutic dose, 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.

J9029 — Intravesical instillation, nadofaragene firadenovec-vncg, per therapeutic dose