J3379
J3379 – Inj, valproate sod, 5 mg · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 5 NDCs crosswalked per 5 MG $0.014/unit ASP+6%
📋 J3379 summary
J3379 is a HCPCS Level II J-code used to bill valproate sod, 5 mg, billed per 5 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 J3379: Valproate Sodium
Code J3379
Billing unit 5 MG Payment limit $0.014/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 codeJ3379
DescriptorInj, valproate sod, 5 mg
Billing unit5 MG
Payment limit / unit$0.014
Est. ASP / unit$0.013 est.
Mapped NDCs5
Data periodQ3 2026
Last updated2026-09-20
🧾 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
$0.014
Est. ASP / unit
$0.013 est.
Est. after 2% sequester
$0.014
HCPCS dosage
5 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.
🧮 Dosing & billing-units calculator HCPCS UNITS
One billing unit of J3379 = 5 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 J3379 WITH EST. MEDICARE PAY
5 NDCs map to J3379. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($0.014/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 00143-9637-10 | Valproate Sodium 100 mg/mL INJECTION | Hikma | 10 VIAL, SINGLE-DOSE in 1 TRAY (0143-9637-... | 100 mg/mL | 1,000 | $14.00 | — | ● Active | CMS ASP |
| 00143-9785-10 | Valproate Sodium 500 mg/5mL INJECTION | Hikma | 10 VIAL, SINGLE-DOSE in 1 CARTON (0143-978... | 500 mg/5mL | 1,000 | $14.00 | — | ● Active | CMS ASP |
| 25021-0797-05 | Valproate Sodium 100 mg/mL INJECTION, SOLUTION | Sagent | 10 VIAL in 1 CARTON (25021-797-05) / 5 mL... | 100 mg/mL | 1,000 | $14.00 | — | ● Active | CMS + PDAC |
| 63323-0494-05 | Valproate Sodium 100 mg/mL INJECTION, SOLUTION | Fresenius | 10 VIAL, SINGLE-DOSE in 1 TRAY (63323-494-... | 100 mg/mL | 1,000 | $14.00 | — | ● Active | CMS ASP |
| 63323-0494-16 | Valproate Sodium 100 mg/mL INJECTION, SOLUTION | Fresenius | 10 VIAL, SINGLE-DOSE in 1 TRAY (63323-494-... | 100 mg/mL | 1,000 | $14.00 | — | ● Active | CMS ASP |
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)
Total Part B spend
$414.28
Claims
79
Beneficiaries
52
Spend / beneficiary
$7.97
Spend / claim
$5.24
Where J3379 ranks among Part B drugs · 2026 (Q1) · neighbors ±5
Total spending — #790 of 824
#785
KEPPRA* J1953
$517.51
#786
DAPTOMYCIN(J0873) J0873
$474.41
#787
MEDROL* J7509
$471.06
#788
AFLURIA (90657)* 90657
$440.18
#789
AZITHROMYCIN* J0456
$419.17
#790
VALPROATE SODIUM J3379
$414.28
#791
HYDROXYZINE HCL J3410
$391.37
#792
FOLIC ACID J1808
$341.31
#793
METHOTREXATE* J8610
$338.59
#794
PHENYLEPHRINE HCL-0.... J2371
$334.54
#795
CALCIUM GLUCONATE-NA... J0613
$319.51
Total claims — #651 of 824
#646
BKEMV Q5152
84
#647
METHOTREXATE* J8610
81
#648
PURAPLY 1 SQ CM** Q4195
80
#649
XWRAP 1 SQ CM** Q4204
80
#650
PROCAINAMIDE HCL J2690
79
#651
VALPROATE SODIUM J3379
79
#652
KEPPRA* J1953
75
#653
VASOPRESSIN-0.9% NAC... J2601
75
#654
CYGNUS DUAL PER SQ C... Q4282
75
#655
DOPAMINE HCL IN 5% D... J1265
74
#656
THYMOGLOBULIN J7511
74
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 (1)
| Period | Total spend | Beneficiaries | Claims | $/beneficiary | $/claim |
|---|---|---|---|---|---|
| 2026 (Q1) | $414.28 | 52 | 79 | $7.97 | $5.24 |
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.
🗺️ Where J3379 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 J3379
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 2026-09-20
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.
❓ J3379 billing FAQ
What is HCPCS code J3379?
J3379 is a HCPCS Level II J-code used to bill Inj, valproate sod, 5 mg under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J3379?
One unit of J3379 represents 5 MG. Report the number of units equal to the dose administered divided by 5 MG.
How many units of J3379 should I bill?
Divide the dose administered by the code's unit size (5 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 J3379?
The Medicare Part B payment limit is $0.014 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $0.014 per unit. Payment limits are revised quarterly.
Which NDCs bill under J3379?
5 NDCs currently map to J3379 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 J3379 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.