J2802
J2802 – Inj, romiplostim 1 microgram · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 4 NDCs crosswalked per 1 MCG $11.617/unit ASP+6%
📋 J2802 summary
J2802 is a HCPCS Level II J-code used to bill romiplostim 1 microgram, billed per 1 MCG. The number of billing units to report depends on the dose administered and the NDC/package billed — use the calculator below.
Brand names associated with J2802: Nplate
Code J2802
Billing unit 1 MCG Payment limit $11.617/unit NDC-Crosswalk 4
Quarter Q3 2026
RxCUI Atlas Trace the drug concept →
⚠ An NDC↔HCPCS crosswalk and a published payment limit do not guarantee payer coverage or payment. Always verify the current payer policy and claim format before billing.
🗂️ Key billing facts
HCPCS codeJ2802
DescriptorInj, romiplostim 1 microgram
Billing unit1 MCG
Payment limit / unit$11.617
Est. ASP / unit$10.959 est.
Mapped NDCs4
Data periodQ3 2026
Last updated2026-08-20
💊 About Romiplostim Injection DRUG GUIDE
Nplate (romiplostim) injection is used to treat immune thrombocytopenia (ITP) — a condition where the immune system destroys platelets, leaving counts too low and raising the risk of serious bleeding.
It is approved for adults and children 1 year and older with ITP who have already tried corticosteroids, immunoglobulins, or spleen removal (splenectomy) without enough improvement.Nplate is also approved to increase survival in adults and children (including newborns) who have been exposed to dangerously high doses of radiation that suppress the bone marrow's ability to make blood cells — a condition called Hematopoietic Syndrome of Acute Radiation Syndrome (HS-ARS).
Nplate is not for low platelets caused by myelodysplastic syndrome (MDS) or any other condition besides ITP, and it should never be used just to bring platelet counts to a normal level.
Clinical overview from our editorial drug guide for Romiplostim Injection. For billing reference, see the sections above.
🧾 Billing & reimbursement HCPCS · CMS · EFF. Q3 2026
📅 Payment limits effective Q3 2026 — from the CMS Medicare Part B Payment Limit File (revised quarterly).
Medicare payment limit / unit
$11.617
Est. ASP / unit
$10.959 est.
Est. after 2% sequester
$11.385
HCPCS dosage
1 MCG
The CMS payment limit is the Medicare Part B drug allowance (ASP + 6%, statutory). After the 2% federal sequester the effective payment is ≈ ASP + 4.3%; estimated ASP = payment limit ÷ 1.06. Source: CMS Medicare Part B Payment Limit File (quarterly), Q3 2026.
🧮 Dosing & billing-units calculator HCPCS UNITS
One billing unit of J2802 = 1 mcg. Enter a regimen to convert dose → billing units and project a full course.
Billing units = dose ÷ HCPCS unit size. Most payers require whole units — round per the payer's policy. “Est. Medicare pay” uses the current payment limit. For single-dose vials, drug discarded after administration may be separately billable with modifier JW (JZ when none is discarded) where allowed. Always verify payer-specific rounding before billing.
🔁 NDCs that bill under J2802 WITH EST. MEDICARE PAY
4 NDCs map to J2802. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($11.617/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 55513-0221-01 | Nplate romiplostim 250 ug/.5mL INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION | Amgen, | 1 VIAL in 1 CARTON (55513-221-01) / .5 mL... | 250 ug/.5mL | 250 | $2,904.25 | — | ● Active | CMS + PDAC |
| 55513-0222-01 | Nplate romiplostim 500 ug/mL INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION | Amgen, | 1 VIAL in 1 CARTON (55513-222-01) / 1 mL... | 500 ug/mL | 500 | $5,808.50 | — | ● Active | CMS + PDAC |
| 55513-0223-01 | Nplate romiplostim 125 ug/.25mL INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION | Amgen, | 1 VIAL, SINGLE-DOSE in 1 CARTON (55513-223... | 125 ug/.25mL | 125 | $1,452.13 | — | ● Active | CMS + PDAC |
| 55513-0223-21 | Nplate romiplostim 125 ug/.25mL INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION | Amgen, | 1 VIAL, SINGLE-DOSE in 1 CARTON (55513-223... | 125 ug/.25mL | 125 | $1,452.13 | — | ● Active | CMS + PDAC |
NDC→HCPCS mappings come from the CMS ASP NDC-HCPCS crosswalk; additional DME MAC / DMEPOS mappings come from PDAC and are labeled separately. NADAC from CMS (weekly). “Status” reflects the product's marketing / obsolete flag in the NDC directory. Presence or absence here does not determine Medicare coverage. Linked NDCs open the full product page.
📊 Medicare utilization & spend CMS · PART B · 2026 (Q1)
Period
Total Part B spend
$106.7M
Claims
24,900
Beneficiaries
4,727
Spend / beneficiary
$22,572.66
Spend / claim
$4,285.18
Trend by period
Where J2802 ranks among Part B drugs · 2026 (Q1) · neighbors ±5
Total spending — #32 of 824
#27
VYVGART HYTRULO J9334
$122.37M
#28
RITUXAN J9312
$119.68M
#29
SYFOVRE J2781
$109.57M
#30
LIBTAYO J9119
$108.14M
#31
XOLAIR J2357
$108.12M
#32
NPLATE J2802
$106.7M
#33
IZERVAY J2782
$105.23M
#34
ILUMYA J3245
$103.49M
#35
VYVGART J9332
$103.34M
#36
OCTREOTIDE ACETATE E... J2353
$101.31M
#37
ACTEMRA(J3262) J3262
$99.7M
Total claims — #90 of 824
#85
GENVISC 850 J7320
27,330
#86
FLUBLOK * 90673
26,354
#87
MAGNESIUM SULFATE-D5... J3475
26,029
#88
IMFINZI J9173
25,264
#89
KISUNLA J0175
25,188
#90
NPLATE J2802
24,900
#91
SYNVISC-ONE* J7325
24,623
#92
BUPIVACAINE HCL* J0665
24,071
#93
BCG (TICE STRAIN)(J9... J9030
23,898
#94
ELUCIREM* A9573
23,837
#95
OHTUVAYRE J7601
22,564
Top Medicare Part B drugs by the selected metric. Click any drug to open its J-code page. Source: CMS Medicare Quarterly Part B Spending by Drug.
Full breakdown by period (2)
| Period | Total spend | Beneficiaries | Claims | $/beneficiary | $/claim |
|---|---|---|---|---|---|
| 2026 (Q1) | $106.7M | 4,727 | 24,900 | $22,572.66 | $4,285.18 |
| 2025 (Q1-Q4) | $429.38M | 7,737 | 103,087 | $55,496.45 | $4,165.18 |
Provider-administered (Part B) spend, calculated for the whole HCPCS code (CMS does not publish Medicare spend per individual NDC). Self-administered use is covered under Part D instead. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part B Spending by Drug (data.cms.gov), updated quarterly.
📈 Medicare Part B claims detail CMS PSPS · 2024
Calendar-year 2024 Medicare Part B fee-for-service activity for this HCPCS code, summed across all carriers, localities and specialties (CMS Physician/Supplier Procedure Summary). A “service” is one billed line/unit — not one claim — so counts run higher than claim counts.
Allowed charges
$159.65M
Medicare paid
$125.73M
Submitted services
15,395,498
Denial rate
3.6%
Allowed / service
$10.75
Submitted charges
$453.87M
Source: CMS Physician/Supplier Procedure Summary (PSPS), CY2024 — Medicare Part B carrier + DME fee-for-service claims (excludes Medicare Advantage). Figures are for the whole HCPCS code, which may cover uses beyond this drug. ⚠ CMS hides any figure covering fewer than 11 patients (a privacy rule), so totals — especially denials and low-volume codes — run a little low.
📊 What bills under J2802
J-codes are billing codes often used for drugs billed under the medical benefit. This connects the billing code to the NDC package records it covers, by ingredient and labeler.
NDC products by ingredient
NDC products by labeler
🗃️ Data sources & freshness
Every figure on this page is computed from public datasets. Here's what each section draws on and how current it is.
HCPCS code & descriptor
CMS HCPCS Level II code file
Not available in current dataset
Payment limit & billing unit
CMS Medicare Part B ASP Pricing File (quarterly)
Q3 2026 · as of 2026-08-20
NDC ↔ HCPCS crosswalk
CMS ASP NDC-HCPCS crosswalk + DMEPDAC (PDAC)
4 NDCs mapped
NADAC acquisition cost
CMS National Average Drug Acquisition Cost (weekly)
Not available for mapped NDCs
Utilization & spend
CMS Part B Spending by Drug · PSPS · Physician & Other Practitioners
Latest data year 2026
Figures are estimates for reference and may lag the source files. Always verify against the current CMS files and your payer's policy before submitting claims.
⚠️ Practical billing caveats
- A crosswalk is not coverage. An NDC mapping or a published payment limit does not guarantee a payer will cover or pay this code. Check the specific plan's policy.
- Units ≠ milligrams. Bill the number of HCPCS units (dose ÷ the code's unit size), not the milligram dose. Use the calculator above.
- Discarded drug. For single-dose vials, drug discarded after administration may be separately billable with modifier JW (and JZ when nothing is discarded) where the payer allows.
- Rounding & partial units. Many payers require whole units; round per the payer's policy, not automatically up.
- The code can cover more than this drug. Some HCPCS codes span multiple products or strengths — confirm the exact code for the product administered.
- Figures lag. ASP limits change quarterly and utilization data are released with a delay. Verify against the current CMS files before billing.
❓ J2802 billing FAQ
What is HCPCS code J2802?
J2802 is a HCPCS Level II J-code used to bill Inj, romiplostim 1 microgram under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J2802?
One unit of J2802 represents 1 MCG. Report the number of units equal to the dose administered divided by 1 MCG.
How many units of J2802 should I bill?
Divide the dose administered by the code's unit size (1 MCG) to get the number of billing units, then round per your payer's policy. The calculator on this page converts a dose into billing units and projects a full course.
How much does Medicare pay for J2802?
The Medicare Part B payment limit is $11.617 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $11.385 per unit. Payment limits are revised quarterly.
Which NDCs bill under J2802?
4 NDCs currently map to J2802 in the CMS ASP NDC-HCPCS crosswalk. See the NDC crosswalk table above for each product, package, billing units and estimated reimbursement.
Does a crosswalk mean J2802 is covered?
No. An NDC-to-HCPCS crosswalk and a published payment limit do not guarantee coverage or payment. Coverage depends on the payer, the diagnosis and the site of care — always verify the current policy before billing.
For professional billing reference only — verify against the current CMS files before submitting claims.