No. J2802 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 J2802?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 4 NDCs under J2802, for Nplate. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J2802?

$11.713 per 1 mcg, 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 J2802?

One unit of J2802 is 1 microgram, as stated in the code's descriptor. Units to report = dose given ÷ 1 microgram.

J2802 J-Code: Nplate (romiplostim) — Billing Units & NDCs

In short

J2802 is the HCPCS Level II code for injection, romiplostim, 1 microgram. CMS assigns NDCs for Nplate to it. One billing unit is 1 microgram. The Medicare Part B payment limit is $11.713 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ2802

Billing unit1 microgram

Descriptor: Injection, romiplostim, 1 microgram
Short descriptor: Inj, romiplostim 1 microgram
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 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$11.713

Per1 mcg

Coinsurance17.89%

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

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 J2802

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 4 NDCs to J2802 for Nplate. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J2802 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Nplate	55513-0221-01	Amgen Inc	1	250
Nplate	55513-0222-01	Amgen Inc	1	500
Nplate	55513-0223-01	Amgen Inc	1	125
Nplate	55513-0223-21	Amgen Inc	1	125

J2802: common questions

Is J2802 a CPT code?: No. J2802 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 J2802?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 4 NDCs under J2802, for Nplate. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J2802?: $11.713 per 1 mcg, 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 J2802?: One unit of J2802 is 1 microgram, as stated in the code's descriptor. Units to report = dose given ÷ 1 microgram. J-code billing units.

J2802 — Injection, romiplostim, 1 microgram