How many Q2058 billing units are in a package of Aucatzyl?

CMS lists 2 billing units per package, depending on the NDC, where one unit is per therapeutic dose. Units to report are based on the dose given, not the package.

No. Q2058 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.

Aucatzyl HCPCS Code Q2058 — Billing Units & NDCs

In short

Aucatzyl is billed under HCPCS Q2058. One billing unit is per therapeutic dose. CMS's crosswalk lists 1 Aucatzyl NDC under this code.

Q2058 code details

Reference

Q2058: HCPCS Level II drug codeBilling unit: per therapeutic dose
Labelers: Autolus, Inc

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$293,725.702

Perper therapeutic dose

Coinsurance19.668%

Effective October 1, 2026 through December 31, 2026. Payment allowance limits subject to the ASP methodology are based on 2Q26 ASP data. CMS note: Added October 2026 - Inflation-adjusted coinsurance. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files

Aucatzyl units and claim line

Enter the dose given to get the Q2058 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.

Aucatzyl 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.

Aucatzyl NDCs in the CMS ASP crosswalk
NDC (11-digit)	HCPCS	Labeler	Package	Billing units per package
83047-0410-04	Q2058	Autolus, Inc	1	2

Aucatzyl: common questions

What is the HCPCS code for Aucatzyl?: Aucatzyl is billed under HCPCS Q2058. One billing unit is per therapeutic dose. CMS's crosswalk lists 1 Aucatzyl NDC under this code.
How many Q2058 billing units are in a package of Aucatzyl?: CMS lists 2 billing units per package, depending on the NDC, where one unit is per therapeutic dose. Units to report are based on the dose given, not the package.
Is Q2058 a CPT code?: No. Q2058 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.

Aucatzyl HCPCS Code