J1746
J1746 – Injection, ibalizumab-uiyk, 10 mg · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 1 NDC crosswalked per 10 MG $79.512/unit ASP+6%
📋 J1746 summary
J1746 is a HCPCS Level II J-code used to bill ibalizumab-uiyk, 10 mg, billed per 10 MG. 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 J1746: Trogarzo
Code J1746
Billing unit 10 MG Payment limit $79.512/unit NDC-Crosswalk 1
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 codeJ1746
DescriptorInjection, ibalizumab-uiyk, 10 mg
Billing unit10 MG
Payment limit / unit$79.512
Est. ASP / unit$75.011 est.
Mapped NDCs1
Data periodQ3 2026
Last updated2026-08-20
🧾 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
$79.512
Est. ASP / unit
$75.011 est.
Est. after 2% sequester
$77.922
HCPCS dosage
10 MG
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.
Full HCPCS code details (official CMS record)
Long descriptionInjection, ibalizumab-uiyk, 10 mg
CoverageC — Carrier/MAC judgment
Pricing indicator51 — Drug — priced under the ASP methodology
Type of service1 — Medical care
BETOS-2O1E
ASC payment groupYY
Action codeN — No maintenance this year
Effective date2019-01-01
Date added2019-01-01
Source: CMS HCPCS Level II code file (imported via admin).
🧮 Dosing & billing-units calculator HCPCS UNITS
One billing unit of J1746 = 10 mg. 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 J1746 WITH EST. MEDICARE PAY
1 NDC map to J1746. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($79.512/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 62064-0122-02 | TROGARZO ibalizumab 150 mg/mL INJECTION, SOLUTION | Theratechnologies | 2 VIAL, SINGLE-USE in 1 CARTON (62064-122-... | 150 mg/mL | 40 | $3,180.48 | — | ● 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
$183.1K
Claims
25
Beneficiaries
—
Spend / beneficiary
—
Spend / claim
$7,322.96
Trend by period
Where J1746 ranks among Part B drugs · 2026 (Q1) · neighbors ±5
Total spending — #534 of 824
#529
FLEXHD** Q4128
$193.7K
#530
IPRATROPIUM BROMIDE J7644
$193.1K
#531
CUBICIN RF* J0878
$192.9K
#532
AMNIO TRI-CORE, PER... Q4295
$191.6K
#533
DOBUTAMINE HCL-D5W* J1250
$183.5K
#534
TROGARZO J1746
$183.1K
#535
AXOLOTL DUALGRAFT, P... Q4332
$182.5K
#536
FIBRYGA J7177
$178.7K
#537
AMNIOBAND, GUARDIAN... Q4151
$163K
#538
VALRUBICIN* J9357
$159K
#539
DERMABIND FM, PER SQ... Q4313
$158.6K
Total claims — #762 of 824
#757
ACTIVATE MATRIX, PER... Q4301
27
#758
HEPARIN SODIUM J1643
26
#759
SUNLENCA J1961
26
#760
EVOMELA J9246
26
#761
AFLURIA (90657)* 90657
25
#762
TROGARZO J1746
25
#763
ALDURAZYME J1931
25
#764
ESPEROCT J7204
25
#765
ACTEMRA(Q0249) Q0249
25
#766
INTEGRA MATRIX** Q4108
25
#767
EPINEPHRINE J0166
24
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) | $183.1K | — | 25 | — | $7,322.96 |
| 2025 (Q1-Q4) | $814.1K | — | 118 | — | $6,899.49 |
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
$399.9K
Medicare paid
$313.5K
Submitted services
5,818
Denial rate
12.0%
Allowed / service
$78.08
Submitted charges
$973.4K
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.
🗺️ Where J1746 is utilized
⏳
The geographic utilization map is building for this code — it aggregates millions of CMS Part B claim lines, then caches the result. Refresh in a moment; if it doesn’t appear, this code may have no reportable Part B utilization.
📊 What bills under J1746
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
Loaded
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)
1 NDC 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.
❓ J1746 billing FAQ
What is HCPCS code J1746?
J1746 is a HCPCS Level II J-code used to bill Injection, ibalizumab-uiyk, 10 mg under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J1746?
One unit of J1746 represents 10 MG. Report the number of units equal to the dose administered divided by 10 MG.
How many units of J1746 should I bill?
Divide the dose administered by the code's unit size (10 MG) 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 J1746?
The Medicare Part B payment limit is $79.512 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $77.922 per unit. Payment limits are revised quarterly.
Which NDCs bill under J1746?
1 NDC currently map to J1746 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 J1746 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.