No. J7345 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 is the Medicare payment limit for J7345?

$1.848 per 10 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 J7345?

One unit of J7345 is 10 mg, as stated in the code's descriptor. Units to report = dose given ÷ 10 mg.

J7345 J-Code: Ameluz Gel

In short

J7345 is the HCPCS Level II code for aminolevulinic acid hcl for topical administration, 10% gel, 10 mg. CMS assigns NDCs for Ameluz Gel and Aminolevulinic Acid Hydrochloride to it. One billing unit is 10 mg. The Medicare Part B payment limit is $1.848 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ7345

Billing unit10 mg

Descriptor: Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg
Short descriptor: Aminolevulinic acid, 10% gel
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 1, 2018

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$1.848

Per10 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 ÷ 10 mg. For example, 1000 mg is 100 units. Enter the dose to get the units and the NDC line for the CMS-1500 and the 837P.

Dose given (mg)

HCPCS units (1 unit = 10 mg)

Modifier

NDC (11-digit)

NDC unit qualifier

NDC quantity

Enter the dose given to build the claim line.

NDCs billed under J7345

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 2 NDCs to J7345 for Ameluz Gel and Aminolevulinic Acid Hydrochloride. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J7345 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Ameluz Gel	70621-0101-10	Biofrontera Inc.	2	200
Aminolevulinic Acid Hydrochloride	70621-0101-20	Biofrontera Inc.	10 × 2	2,000

J7345: common questions

Is J7345 a CPT code?: No. J7345 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 J7345?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 2 NDCs under J7345, for Ameluz Gel and Aminolevulinic Acid Hydrochloride. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J7345?: $1.848 per 10 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 J7345?: One unit of J7345 is 10 mg, as stated in the code's descriptor. Units to report = dose given ÷ 10 mg. J-code billing units.

J7345 — Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg