In short

Q5152 is the HCPCS Level II code for injection, eculizumab-aeeb (bkemv), biosimilar, 2 mg. CMS assigns NDCs for Bkemv to it. One billing unit is 2 mg. The Medicare Part B payment limit is $40.412 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file
HCPCS codeQ5152
Billing unit2 mg
Descriptor
Injection, eculizumab-aeeb (bkemv), biosimilar, 2 mg
Short descriptor
Inj, eculizumab-aeeb, 2 mg
Code set
HCPCS Level II, maintained by CMS
Effective
Jul 1, 2025

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$40.412
Per2 mg
Coinsurance20%

Effective October 1, 2026 through December 31, 2026. Payment allowance limits subject to the ASP methodology are based on 2Q26 ASP data. CMS note: 8% of reference add-on applied. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files

Units and claim line

Units = dose given ÷ 2 mg. For example, 200 mg is 100 units. Enter the dose to get the units and the NDC line for the CMS-1500 and the 837P.

Enter the dose given to build the claim line.

NDCs billed under Q5152

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 1 NDC to Q5152 for Bkemv. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to Q5152 in the CMS ASP crosswalk
DrugNDC (11-digit)LabelerPackageBilling units per package
Bkemv55513-0180-01Amgen Inc30150

Q5152: common questions

Is Q5152 a CPT code?
No. Q5152 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 Q5152?
CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 1 NDC under Q5152, for Bkemv. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for Q5152?
$40.412 per 2 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 Q5152?
One unit of Q5152 is 2 mg, as stated in the code's descriptor. Units to report = dose given ÷ 2 mg. J-code billing units.

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