J0651
J0651 – Inj, levothyroxine, freskabi · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 5 NDCs crosswalked per 10 MCG $6.836/unit ASP+6%
📋 J0651 summary
J0651 is a HCPCS Level II J-code used to bill levothyroxine, freskabi, billed per 10 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 J0651: Levothyroxine Sodium(J0651)
Code J0651
Billing unit 10 MCG Payment limit $6.836/unit NDC-Crosswalk 5
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 codeJ0651
DescriptorInj, levothyroxine, freskabi
Billing unit10 MCG
Payment limit / unit$6.836
Est. ASP / unit$6.449 est.
Mapped NDCs5
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
$6.836
Est. ASP / unit
$6.449 est.
Est. after 2% sequester
$6.699
HCPCS dosage
10 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 J0651 = 10 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 J0651 WITH EST. MEDICARE PAY
5 NDCs map to J0651. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($6.836/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 63323-0885-10 | Levothyroxine Sodium 20 ug/mL INJECTION, SOLUTION | Fresenius | 1 VIAL, SINGLE-DOSE in 1 CARTON (63323-885... | 20 ug/mL | 10 | $68.36 | — | ● Active | CMS + PDAC |
| 63323-0885-12 | Levothyroxine Sodium 20 ug/mL INJECTION, SOLUTION | Fresenius | 1 VIAL, SINGLE-DOSE in 1 CARTON (63323-885... | 20 ug/mL | 10 | $68.36 | — | ● Active | CMS + PDAC |
| 63323-0885-14 | Levothyroxine Sodium 20 ug/mL INJECTION, SOLUTION | Fresenius | 1 VIAL, SINGLE-DOSE in 1 CARTON (63323-885... | 20 ug/mL | 10 | $68.36 | — | ● Active | CMS + PDAC |
| 63323-0890-10 | Levothyroxine Sodium 40 ug/mL INJECTION, SOLUTION | Fresenius | 1 VIAL, SINGLE-DOSE in 1 CARTON (63323-890... | 40 ug/mL | 20 | $136.72 | — | ● Active | CMS + PDAC |
| 63323-0895-10 | Levothyroxine Sodium 100 ug/mL INJECTION, SOLUTION | Fresenius | 1 VIAL, SINGLE-DOSE in 1 CARTON (63323-895... | 100 ug/mL | 50 | $341.80 | — | ● 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
$55.4K
Claims
128
Beneficiaries
59
Spend / beneficiary
$939.37
Spend / claim
$432.99
Trend by period
Where J0651 ranks among Part B drugs · 2026 (Q1) · neighbors ±5
Total spending — #602 of 824
#597
BIOVANCE 1 SQUARE CM... Q4154
$62.8K
#598
INTEGRA MATRIX** Q4108
$61.9K
#599
ABIO XPL ABIO XPL HY... Q4355
$61.8K
#600
SODIUM CHLORIDE(J704... J7040
$60.2K
#601
FENTANYL CITRATE J3010
$57.1K
#602
LEVOTHYROXINE SODIUM... J0651
$55.4K
#603
PEMETREXED(J9314) J9314
$54.9K
#604
DILAUDID* J1171
$54.5K
#605
PROGRAF(J7521) J7521
$53.4K
#606
ARSENIC TRIOXIDE* J9017
$53K
#607
CLADRIBINE J9065
$50.6K
Total claims — #603 of 824
#598
KIMYRSA J2406
133
#599
ACETAMINOPHEN(J0136) J0136
132
#600
METRO IV* J1836
132
#601
VIBATIV J3095
131
#602
ARTACENT WOUND, PER... Q4169
131
#603
LEVOTHYROXINE SODIUM... J0651
128
#604
TEVIMBRA J9329
128
#605
ONDANSETRON HCL(Q016... Q0162
127
#606
AMNIO QUAD-CORE, PER... Q4294
126
#607
EPYSQLI Q5151
124
#608
CEFTAROLINE FOSAMIL* J0712
122
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) | $55.4K | 59 | 128 | $939.37 | $432.99 |
| 2025 (Q1-Q4) | $160.4K | 157 | 455 | $1,021.83 | $352.59 |
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
$819.48
Medicare paid
$696.02
Submitted services
5,210
Denial rate
97.7%
Allowed / service
$6.83
Submitted charges
$59.2K
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 J0651 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 J0651
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)
5 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.
❓ J0651 billing FAQ
What is HCPCS code J0651?
J0651 is a HCPCS Level II J-code used to bill Inj, levothyroxine, freskabi under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J0651?
One unit of J0651 represents 10 MCG. Report the number of units equal to the dose administered divided by 10 MCG.
How many units of J0651 should I bill?
Divide the dose administered by the code's unit size (10 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 J0651?
The Medicare Part B payment limit is $6.836 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $6.699 per unit. Payment limits are revised quarterly.
Which NDCs bill under J0651?
5 NDCs currently map to J0651 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 J0651 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.