In short

Blincyto is billed under HCPCS J9039 — Injection, blinatumomab, 1 microgram. One billing unit is 1 mcg. CMS's crosswalk lists 2 Blincyto NDCs under this code.

J9039 code details

Reference

J9039
Injection, blinatumomab, 1 microgramBilling unit: 1 mcg
Labelers
Amgen Inc

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$173.047
Per1 mcg
Coinsurance17.991%

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

Blincyto units and claim line

Enter the dose given to get the J9039 units and the NDC line for the CMS-1500 and the 837P.

Enter the dose given to build the claim line.

Blincyto 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.

Blincyto NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
55513-0160-01J9039Amgen Inc135
55513-0160-21J9039Amgen Inc135

Blincyto: common questions

What is the J-code for Blincyto?
Blincyto is billed under HCPCS J9039 — Injection, blinatumomab, 1 microgram. One billing unit is 1 mcg. CMS's crosswalk lists 2 Blincyto NDCs under this code.
How many J9039 billing units are in a package of Blincyto?
CMS lists 35 billing units per package, depending on the NDC, where one unit is 1 mcg. Units to report are based on the dose given, not the package.
Is J9039 a CPT code?
No. J9039 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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