J0122
J0122 – Injection, eravacycline, 1 mg · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 2 NDCs crosswalked per 1 MG $1.381/unit ASP+6%
📋 J0122 summary
J0122 is a HCPCS Level II J-code used to bill eravacycline, 1 mg, billed per 1 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 J0122: Xerava
Code J0122
Billing unit 1 MG Payment limit $1.381/unit NDC-Crosswalk 2
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 codeJ0122
DescriptorInjection, eravacycline, 1 mg
Billing unit1 MG
Payment limit / unit$1.381
Est. ASP / unit$1.303 est.
Mapped NDCs2
Data periodQ3 2026
Last updated2026-08-20
💊 About Eravacycline Injection DRUG GUIDE
Xerava (eravacycline) is approved to treat complicated intra-abdominal infections (serious infections inside the belly — such as those involving the intestines, appendix, or other abdominal organs) in adults 18 and older.
It works against a specific range of bacteria that commonly cause these infections.Xerava is not approved to treat complicated urinary tract infections (cUTI).
To help prevent antibiotic resistance, it should only be used when there is a proven or strongly suspected bacterial infection that it can fight.
Clinical overview from our editorial drug guide for Eravacycline 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
$1.381
Est. ASP / unit
$1.303 est.
Est. after 2% sequester
$1.353
HCPCS dosage
1 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, eravacycline, 1 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 date2019-10-01
Date added2019-10-01
Source: CMS HCPCS Level II code file (imported via admin).
🧮 Dosing & billing-units calculator HCPCS UNITS
One billing unit of J0122 = 1 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 J0122 WITH EST. MEDICARE PAY
2 NDCs map to J0122. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($1.381/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 71773-0050-12 | Xerava eravacycline 50 mg/1 INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION | Tetraphase | 12 VIAL, GLASS in 1 CARTON (71773-050-12)... | 50 mg/1 | 600 | $828.60 | — | ● Active | CMS + PDAC |
| 71773-0100-12 | Xerava eravacycline 100 mg/1 INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION | Tetraphase | 12 CARTON in 1 PACKAGE (71773-100-12) / 1... | 100 mg/1 | 1,200 | $1,657.20 | — | ● 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
$22.8K
Claims
136
Beneficiaries
18
Spend / beneficiary
$1,267.24
Spend / claim
$167.72
Trend by period
Where J0122 ranks among Part B drugs · 2026 (Q1) · neighbors ±5
Total spending — #645 of 824
#640
HYPERHEP B* 90371
$24.3K
#641
ENOXAPARIN SODIUM* J1650
$24.3K
#642
METHOTREXATE SODIUM* J9260
$24.2K
#643
PROCAINAMIDE HCL J2690
$24.1K
#644
THIAMINE HCL J3411
$23.6K
#645
XERAVA J0122
$22.8K
#646
VINBLASTINE SULFATE J9360
$22.8K
#647
PROVOCHOLINE J7674
$22.4K
#648
MLG COMPLET, PER SQ... Q4256
$21.3K
#649
SIVEXTRO J3090
$21.3K
#650
ATROPINE SULFATE(J04... J0461
$21.1K
Total claims — #596 of 824
#591
KOVALTRY J7211
142
#592
MESNA* J9209
142
#593
AMNIOBAND, GUARDIAN... Q4151
142
#594
CIPROFLOXACIN-D5W J0744
140
#595
TEMSIROLIMUS* J9330
137
#596
XERAVA J0122
136
#597
ZERBAXA J0695
136
#598
KIMYRSA J2406
133
#599
ACETAMINOPHEN(J0136) J0136
132
#600
METRO IV* J1836
132
#601
VIBATIV J3095
131
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) | $22.8K | 18 | 136 | $1,267.24 | $167.72 |
| 2025 (Q1-Q4) | $43.5K | 21 | 150 | $2,073.14 | $290.24 |
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.
📈 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
$44.2K
Medicare paid
$34.7K
Submitted services
67,666
Denial rate
47.2%
Allowed / service
$1.24
Submitted charges
$376.6K
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 J0122 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 J0122
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)
2 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.
❓ J0122 billing FAQ
What is HCPCS code J0122?
J0122 is a HCPCS Level II J-code used to bill Injection, eravacycline, 1 mg under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J0122?
One unit of J0122 represents 1 MG. Report the number of units equal to the dose administered divided by 1 MG.
How many units of J0122 should I bill?
Divide the dose administered by the code's unit size (1 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 J0122?
The Medicare Part B payment limit is $1.381 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $1.353 per unit. Payment limits are revised quarterly.
Which NDCs bill under J0122?
2 NDCs currently map to J0122 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 J0122 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.