J0290
J0290 – Injection, ampicillin sodium, 500 mg · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 98 NDCs crosswalked per 500 MG $0.614/unit ASP+6%
📋 J0290 summary
J0290 is a HCPCS Level II J-code used to bill ampicillin sodium, 500 mg, billed per 500 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 J0290: Ampicillin
Code J0290
Billing unit 500 MG Payment limit $0.614/unit NDC-Crosswalk 98
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 codeJ0290
DescriptorInjection, ampicillin sodium, 500 mg
Billing unit500 MG
Payment limit / unit$0.614
Est. ASP / unit$0.579 est.
Mapped NDCs98
Data periodQ3 2026
Last updated2026-08-20
💊 About Ampicillin DRUG GUIDE
Ampicillin treats bacterial infections caused by susceptible organisms.
It is used for respiratory tract infections, urinary tract infections, gastrointestinal infections (including typhoid fever and dysentery), bacterial meningitis (infection of the membranes surrounding the brain and spinal cord), and serious bloodstream infections such as septicemia and endocarditis (infection of the heart's inner lining).Ampicillin capsules (oral form) are also indicated for genitourinary tract infections, including gonorrhea caused by non-penicillinase-producing organisms, and meningitis caused by N.
The injectable forms (intramuscular or intravenous) are reserved for moderately severe to severe infections or for patients who cannot take oral medication.
Clinical overview from our editorial drug guide for Ampicillin. 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
$0.614
Est. ASP / unit
$0.579 est.
Est. after 2% sequester
$0.602
HCPCS dosage
500 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, ampicillin sodium, 500 mg
CoverageD — Special coverage instructions apply
Pricing indicator51 — Drug — priced under the ASP methodology
Type of service1 — Medical care
BETOS-2O1E
ASC payment group—
Action codeN — No maintenance this year
Effective date2000-01-01
Date added1984-01-01
Source: CMS HCPCS Level II code file (imported via admin).
🧮 Dosing & billing-units calculator HCPCS UNITS
One billing unit of J0290 = 500 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 J0290 WITH EST. MEDICARE PAY
98 NDCs map to J0290. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($0.614/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 00404-9803-99 | Ampicillin Sodium | Henry | — | — | 2 | $1.23 | — | — | CMS ASP |
| 00404-9816-99 | Ampicillin Sodium | Henry | — | — | 2 | $1.23 | — | — | CMS ASP |
| 00404-9818-99 | AMPICILLIN 2 g/1 INJECTION, POWDER, FOR SOLUTION | Henry | 1 VIAL in 1 BAG (0404-9818-99) / 1 INJECT... | 2 g/1 | 4 | $2.46 | — | ● Active | CMS ASP |
| 00781-3400-95 | Ampicillin Sodium | Sandoz | — | — | 3 | $1.84 | — | — | CMS + PDAC |
| 00781-3402-95 | Ampicillin 250 mg/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-3402-95)... | 250 mg/1 | 5 | $3.07 | — | ● Active | CMS + PDAC |
| 00781-3404-95 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-3404-95)... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 00781-3407-95 | Ampicillin 500 mg/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-3407-95)... | 500 mg/1 | 10 | $6.14 | — | ● Active | CMS + PDAC |
| 00781-3408-95 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-3408-95)... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 00781-3409-95 | Ampicillin 10 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, PHARMACY BULK PACKAGE in 1 PACKAG... | 10 g/1 | 200 | $122.80 | — | ● Active | CMS + PDAC |
| 00781-3412-92 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-3412-92)... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 00781-3413-92 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-3413-92)... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 00781-9242-95 | Ampicillin Sodium | Sandoz | — | — | 5 | $3.07 | — | — | CMS + PDAC |
| 00781-9261-95 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-9261-95)... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 00781-9273-95 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-9273-95)... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 00781-9401-95 | Ampicillin Sodium | Sandoz | — | — | 3 | $1.84 | — | — | CMS + PDAC |
| 00781-9402-95 | Ampicillin Sodium | Sandoz | — | — | 5 | $3.07 | — | — | CMS + PDAC |
| 00781-9404-95 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-9404-95)... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 00781-9407-95 | Ampicillin Sodium | Sandoz | — | — | 10 | $6.14 | — | — | CMS + PDAC |
| 00781-9408-95 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-9408-95)... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 00781-9409-95 | Ampicillin 10 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, PHARMACY BULK PACKAGE in 1 PACKAG... | 10 g/1 | 200 | $122.80 | — | ● Active | CMS + PDAC |
| 00781-9412-92 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-9412-92)... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 00781-9413-92 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Sandoz | 10 VIAL, GLASS in 1 PACKAGE (0781-9413-92)... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 23155-0915-41 | AMPICILLIN 500 mg/500mg POWDER, FOR SOLUTION | Heritage | 10 VIAL in 1 PACKAGE (23155-915-41) / 500... | 500 mg/500mg | 10 | $6.14 | — | ● Active | CMS + PDAC |
| 23155-0916-41 | AMPICILLIN 1 g/g POWDER, FOR SOLUTION | Heritage | 10 VIAL in 1 PACKAGE (23155-916-41) / 1 g... | 1 g/g | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 23155-0917-41 | AMPICILLIN 2 g/2g POWDER, FOR SOLUTION | Heritage | 10 VIAL in 1 PACKAGE (23155-917-41) / 2 g... | 2 g/2g | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 25021-0134-10 | Ampicillin Sodium | Sagent | — | — | 5 | $3.07 | — | — | CMS ASP |
| 25021-0135-10 | Ampicillin Sodium | Sagent | — | — | 10 | $6.14 | — | — | CMS ASP |
| 25021-0136-10 | ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Sagent | 10 VIAL in 1 CARTON (25021-136-10) / 1 IN... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS ASP |
| 25021-0137-20 | ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Sagent | 10 VIAL in 1 CARTON (25021-137-20) / 1 IN... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS ASP |
| 25021-0197-99 | Ampicillin Sodium 10 g/100mL INJECTION, POWDER, FOR SOLUTION | Sagent | 1 BOTTLE in 1 CARTON (25021-197-99) / 100... | 10 g/100mL | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 44567-0100-10 | Ampicillin 250 mg/1 INJECTION, POWDER, FOR SOLUTION | WG | 10 VIAL in 1 TRAY (44567-100-10) / 1 INJE... | 250 mg/1 | 5 | $3.07 | — | ● Active | CMS ASP |
| 44567-0101-10 | Ampicillin 500 mg/1 INJECTION, POWDER, FOR SOLUTION | WG | 10 VIAL in 1 TRAY (44567-101-10) / 1 INJE... | 500 mg/1 | 10 | $6.14 | — | ● Active | CMS ASP |
| 44567-0102-10 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | WG | 10 VIAL in 1 TRAY (44567-102-10) / 1 INJE... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS ASP |
| 44567-0103-10 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | WG | 10 VIAL in 1 TRAY (44567-103-10) / 1 INJE... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS ASP |
| 44567-0104-01 | Ampicillin 10 g/1 INJECTION, POWDER, FOR SOLUTION | WG | 1 VIAL, PHARMACY BULK PACKAGE in 1 CARTON... | 10 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 50090-4552-00 | Ampicillin Sodium | A-S | — | — | 4 | $2.46 | — | — | CMS ASP |
| 51662-1560-03 | AMPICILLIN 2 g/1 INJECTION, POWDER, FOR SOLUTION | HF | 10 POUCH in 1 CASE (51662-1560-3) / 1 VIA... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS ASP |
| 51662-1595-03 | AMPICILLIN 250 mg/1 INJECTION, POWDER, FOR SOLUTION | HF | 10 POUCH in 1 CASE (51662-1595-3) / 1 VIA... | 250 mg/1 | 5 | $3.07 | — | ● Active | CMS ASP |
| 55150-0113-10 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Eugia | 10 VIAL in 1 BOX (55150-113-10) / 1 INJEC... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS ASP |
| 55150-0114-20 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Eugia | 10 VIAL in 1 BOX (55150-114-20) / 1 INJEC... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS ASP |
| 55150-0115-99 | Ampicillin 10 g/100mL INJECTION, POWDER, FOR SOLUTION | Eugia | 10 VIAL, PHARMACY BULK PACKAGE in 1 BOX (5... | 10 g/100mL | 200 | $122.80 | — | ● Active | CMS ASP |
| 65219-0014-10 | Ampicillin 250 mg/1 INJECTION, POWDER, FOR SOLUTION | Fresenius | 10 VIAL in 1 CARTON (65219-014-10) / 1 IN... | 250 mg/1 | 5 | $3.07 | — | ● Active | CMS + PDAC |
| 65219-0016-10 | Ampicillin 500 mg/1 INJECTION, POWDER, FOR SOLUTION | Fresenius | 10 VIAL in 1 CARTON (65219-016-10) / 1 IN... | 500 mg/1 | 10 | $6.14 | — | ● Active | CMS + PDAC |
| 65219-0018-10 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Fresenius | 10 VIAL in 1 CARTON (65219-018-10) / 1 IN... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 65219-0020-23 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | Fresenius | 10 VIAL in 1 CARTON (65219-020-23) / 1 IN... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 66794-0220-41 | Ampicillin Sodium | Piramal | — | — | 5 | $3.07 | — | — | CMS + PDAC |
| 66794-0222-41 | Ampicillin Sodium | Piramal | — | — | 20 | $12.28 | — | — | CMS + PDAC |
| 66794-0223-41 | Ampicillin Sodium | Piramal | — | — | 40 | $24.56 | — | — | CMS + PDAC |
| 66794-0224-15 | Ampicillin Sodium | Piramal | — | — | 20 | $12.28 | — | — | CMS + PDAC |
| 70860-0112-15 | Ampicillin Sodium | Athenex | — | — | 5 | $3.07 | — | — | CMS + PDAC |
| 70860-0113-15 | Ampicillin Sodium | Athenex | — | — | 10 | $6.14 | — | — | CMS + PDAC |
| 70860-0114-15 | Ampicillin Sodium | Athenex | — | — | 20 | $12.28 | — | — | CMS + PDAC |
| 70860-0115-26 | Ampicillin Sodium | Athenex | — | — | 40 | $24.56 | — | — | CMS + PDAC |
| 70860-0118-99 | Ampicillin 10 g/100mL INJECTION, POWDER, FOR SOLUTION | Athenex | 1 BOTTLE in 1 CARTON (70860-118-99) / 100... | 10 g/100mL | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 72485-0421-10 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | Armas | 10 VIAL in 1 CARTON (72485-421-10) / 1 IN... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 72485-0422-10 | Ampicillin sodium 2 g/1 INJECTION, POWDER, FOR SOLUTION | Armas | 10 VIAL in 1 CARTON (72485-422-10) / 1 IN... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 72485-0423-10 | Ampicillin 10 g/1 INJECTION, POWDER, FOR SOLUTION | Armas | 1 INJECTION, POWDER, FOR SOLUTION in 1 CAR... | 10 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 72572-0016-10 | AMPICILLIN 1 g/1 INJECTION, POWDER, FOR SOLUTION | Civica, | 10 VIAL, GLASS in 1 CARTON (72572-016-10)... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 72572-0017-10 | AMPICILLIN 2 g/1 INJECTION, POWDER, FOR SOLUTION | Civica, | 10 VIAL, GLASS in 1 CARTON (72572-017-10)... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 72572-0094-10 | Ampicillin sodium 2 g/1 INJECTION, POWDER, FOR SOLUTION | Civica, | 10 VIAL in 1 CARTON (72572-094-10) / 1 IN... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 72603-0221-10 | Ampicillin 500 mg/1 INJECTION, POWDER, FOR SOLUTION | NorthStar | 10 VIAL in 1 CARTON (72603-221-10) / 1 IN... | 500 mg/1 | 10 | $6.14 | — | ● Active | CMS + PDAC |
| 72603-0363-10 | Ampicillin 1 g/1 INJECTION, POWDER, FOR SOLUTION | NorthStar | 10 VIAL in 1 CARTON (72603-363-10) / 1 IN... | 1 g/1 | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 72603-0454-10 | Ampicillin 2 g/1 INJECTION, POWDER, FOR SOLUTION | NorthStar | 10 VIAL in 1 CARTON (72603-454-10) / 1 IN... | 2 g/1 | 40 | $24.56 | — | ● Active | CMS + PDAC |
| 72603-0578-01 | Ampicillin 10 g/100mL INJECTION, POWDER, FOR SOLUTION | NorthStar | 1 BOTTLE in 1 CARTON (72603-578-01) / 100... | 10 g/100mL | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 83634-0100-99 | Ampicillin 10 g/100mL INJECTION, POWDER, FOR SOLUTION | Avenacy | 1 BOTTLE in 1 CARTON (83634-100-99) / 100... | 10 g/100mL | 20 | $12.28 | — | ● Active | CMS + PDAC |
| 70594-0086-02 | AMPICILLIN (USP,PF,LATEX-FREE) 1 GM | Unknown | — | — | 2 | $1.23 | — | — | PDAC |
| 70594-0087-02 | AMPICILLIN (PF,LATEX-FREE) 2 GM | Unknown | — | — | 4 | $2.46 | — | — | PDAC |
| 70594-0088-01 | AMPICILLIN (PHARMACY BULK;USP,PF) 10 GM | Unknown | — | — | 20 | $12.28 | — | — | PDAC |
| 70594-0084-02 | AMPICILLIN (USP,PF,LATEX-FREE) 250 MG | Unknown | — | — | 0.5 | $0.31 | — | — | PDAC |
| 70594-0085-02 | AMPICILLIN (USP,PF,LATEX-FREE) 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 67850-0024-10 | AMPICILLIN (USP,PF,LATEX-FREE) 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 67850-0022-10 | AMPICILLIN (PF,LATEX-FREE) 2 GM | Unknown | — | — | 4 | $2.46 | — | — | PDAC |
| 67850-0021-10 | AMPICILLIN (PF,LATEX-FREE) 1 GM | Unknown | — | — | 2 | $1.23 | — | — | PDAC |
| 00781-9401-78 | NOVAPLUS AMPICILLIN 125 MG | Unknown | — | — | 0.25 | $0.15 | — | — | PDAC |
| 00781-9408-92 | NOVAPLUS AMPICILLIN (ADD-VANTAGE) 2 GM | Unknown | — | — | 4 | $2.46 | — | — | PDAC |
| 00781-9412-15 | NOVAPLUS AMPICILLIN (ADD-VANTAGE) 1 GM | Unknown | — | — | 2 | $1.23 | — | — | PDAC |
| 00781-9402-78 | NOVAPLUS AMPICILLIN 250 MG | Unknown | — | — | 0.5 | $0.31 | — | — | PDAC |
| 00781-9404-85 | NOVAPLUS AMPICILLIN 1 GM | Unknown | — | — | 2 | $1.23 | — | — | PDAC |
| 00781-9407-78 | NOVAPLUS AMPICILLIN 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 00781-9408-80 | NOVAPLUS AMPICILLIN 2 GM | Unknown | — | — | 4 | $2.46 | — | — | PDAC |
| 54868-4047-00 | AMPICILLIN SODIUM (VIAL) 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 66794-0221-41 | AMPICILLIN (USP,PF,LATEX-FREE) 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 63323-0708-00 | AMPICILLIN SODIUM 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 00409-3719-01 | AMPICILLIN (USP,PF,LATEX-FREE) 250 MG | Unknown | — | — | 0.5 | $0.31 | — | — | PDAC |
| 00409-3718-01 | AMPICILLIN (USP,PF,LATEX-FREE) 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 00409-3725-01 | AMPICILLIN (USP,PF,LATEX-FREE) 10 GM | Unknown | — | — | 20 | $12.28 | — | — | PDAC |
| 00409-3720-01 | AMPICILLIN (PF,LATEX-FREE) 2 GM | Unknown | — | — | 4 | $2.46 | — | — | PDAC |
| 00409-3726-01 | AMPICILLIN (PF,LATEX-FREE) 1 GM | Unknown | — | — | 2 | $1.23 | — | — | PDAC |
| 63323-0704-08 | AMPICILLIN SODIUM (VIAL) 1 GM | Unknown | — | — | 2 | $1.23 | — | — | PDAC |
| 63323-0707-20 | AMPICILLIN SODIUM 250 MG | Unknown | — | — | 0.5 | $0.31 | — | — | PDAC |
| 63323-0705-08 | AMPICILLIN SODIUM 2 GM | Unknown | — | — | 4 | $2.46 | — | — | PDAC |
| 67457-0353-10 | AMPICILLIN (USP,CRYSTALLINE) 250 MG | Unknown | — | — | 0.5 | $0.31 | — | — | PDAC |
| 67457-0352-10 | AMPICILLIN (USP,CRYSTALLINE) 2 GM | Unknown | — | — | 4 | $2.46 | — | — | PDAC |
| 67457-0350-10 | AMPICILLIN (USP,CRYSTALLINE) 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 67457-0351-10 | AMPICILLIN (USP,CRYSTALLINE) 1 GM | Unknown | — | — | 2 | $1.23 | — | — | PDAC |
| 67457-0404-10 | AMPICILLIN (USP,CRYSTALLINE) 10 GM | Unknown | — | — | 20 | $12.28 | — | — | PDAC |
| 00781-9250-95 | PREMIERPRO RX AMPICILLIN 500 MG | Unknown | — | — | 1 | $0.61 | — | — | PDAC |
| 63323-0404-00 | AMPICILLIN (BULK PACKAGE,LATEX-FREE) 10 GM | Unknown | — | — | 20 | $12.28 | — | — | 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
$832.24
Claims
215
Beneficiaries
146
Spend / beneficiary
$5.70
Spend / claim
$3.87
Trend by period
Where J0290 ranks among Part B drugs · 2026 (Q1) · neighbors ±5
Total spending — #776 of 824
#771
HAVRIX* 90632
$1K
#772
TIGECYCLINE* J3243
$940.10
#773
METRO IV* J1836
$932.49
#774
BUTORPHANOL TARTRATE J0595
$881.00
#775
PHYTONADIONE* J3430
$874.12
#776
AMPICILLIN SODIUM J0290
$832.24
#777
MICAFUNGIN(J2247) J2247
$819.12
#778
DEXTROSE IN WATER(J7... J7070
$808.79
#779
METOCLOPRAMIDE HCL J2765
$769.16
#780
BENZTROPINE MESYLATE J0515
$656.40
#781
CIPROFLOXACIN-D5W J0744
$605.35
Total claims — #536 of 824
#531
SUBLOCADE(Q9992) Q9992
227
#532
DEXTROSE IN WATER(J7... J7070
225
#533
BORTEZOMIB(J9049) J9049
219
#534
FLOXURIDINE J9200
219
#535
AMNIOAMP-MP PER SQ C... Q4250
218
#536
AMPICILLIN SODIUM J0290
215
#537
EVKEEZA J1305
214
#538
EPIXPRESS, PER SQ CM... Q4361
212
#539
NEBUPENT(J2545)* J2545
207
#540
KHAPZORY J0642
206
#541
HELICOLL, PER SQUARE... Q4164
205
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) | $832.24 | 146 | 215 | $5.70 | $3.87 |
| 2025 (Q1-Q4) | $4.7K | 442 | 970 | $10.65 | $4.85 |
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
$4.4K
Medicare paid
$3.5K
Submitted services
134,468
Denial rate
94.4%
Allowed / service
$0.58
Submitted charges
$1.94M
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 J0290 is utilized CMS · BY PROVIDER · 2024
Medicare Part B services for this code by the rendering provider's state — 1,037 services across 8 states & territories in 2024 (CMS reports include DC and U.S. territories). Switch to per 100k to compare states fairly regardless of population. Hover or tap a state for its top ZIP codes.
Hover or tap a state to see its numbers + top ZIP codes.
Per-capita = services ÷ 2023 state population × 100,000 (so high-population states aren't automatically "hotter"). Counts reflect the provider's location, not the patient's. Providers with fewer than 11 patients are hidden by CMS for privacy, so totals run low and per-100k can be noisy in small states — read this as relative geography, not exact counts. Source: CMS Medicare Physician & Other Practitioners — by Provider and Service, 2024.
📊 What bills under J0290
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)
98 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.
❓ J0290 billing FAQ
What is HCPCS code J0290?
J0290 is a HCPCS Level II J-code used to bill Injection, ampicillin sodium, 500 mg under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J0290?
One unit of J0290 represents 500 MG. Report the number of units equal to the dose administered divided by 500 MG.
How many units of J0290 should I bill?
Divide the dose administered by the code's unit size (500 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 J0290?
The Medicare Part B payment limit is $0.614 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $0.602 per unit. Payment limits are revised quarterly.
Which NDCs bill under J0290?
98 NDCs currently map to J0290 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 J0290 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.