J1335 HCPCS code: Injection, ertapenem sodium, 500 mg
J1335 is the HCPCS Level II code for injection, ertapenem sodium, 500 mg. In 2024 Medicare paid an average of $8.88 per service for J1335 across 126,147 services. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 2 per day on outpatient hospital claims. Medicare volume fell 10% from 2022 to 2024 (139,678 to 126,147 services). In 2024, about 2,041 clinicians billed Medicare for J1335 for 6,667 beneficiaries; Florida, Texas, Georgia accounted for 50% of services.
Code details
| Field | Value |
|---|---|
| Section | J codes — Drugs administered other than oral method |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 51 — Drug or biological (priced per ASP/average sales price rules) |
| BETOS category | O1E — Other drugs |
| Added | 2004-01-01 |
| Last action effective | 2004-01-01 |
Who bills J1335 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 2,041 |
| Medicare beneficiaries | 6,667 |
| States with claims | 39 |
| Share of services in top 3 states (Florida, Texas, Georgia) | 50% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for J1335, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 139,678 | 6,555 | $18.99 | $15.08 |
| 2023 | 138,624 | 6,615 | $13.35 | $10.56 |
| 2024 | 126,147 | 6,667 | $11.23 | $8.88 |
States with the most J1335 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Florida | 34,638 | $8.96 |
| Texas | 18,863 | $8.86 |
| Georgia | 9,655 | $8.84 |
| Colorado | 9,279 | $8.93 |
| Illinois | 7,122 | $8.92 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 2 | Prescribing Information |
| practitioner claims | 2 | Prescribing Information |
What changed for J1335
- 2004-01-01: J1335 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code J1335?
J1335 is the HCPCS Level II code for injection, ertapenem sodium, 500 mg. Short descriptor: "Ertapenem injection".
How much does Medicare pay for J1335?
In 2024, the average Medicare payment was $8.88 per service (average allowed $11.23).
Does Medicare cover J1335?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
How many units of J1335 can be billed per day?
2 on outpatient hospital claims; 2 on practitioner claims (NCCI medically unlikely edits).
Related J13 codes
- J1300 — Injection, eculizumab, 10 mg
- J1301 — Injection, edaravone, 1 mg
- J1302 — Injection, sutimlimab-jome, 10 mg
- J1303 — Injection, ravulizumab-cwvz, 10 mg
- J1304 — Injection, tofersen, 1 mg
- J1305 — Injection, evinacumab-dgnb, 5mg
- J1306 — Injection, inclisiran, 1 mg
- J1307 — Injection, crovalimab-akkz, 10 mg
- J1308 — Injection, famotidine, 0.25 mg
- J1320 — Injection, amitriptyline hcl, up to 20 mg
- J1322 — Injection, elosulfase alfa, 1 mg
- J1323 — Injection, elranatamab-bcmm, 1 mg
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Next steps
- Run a reimbursement report for a device billed under J1335
- Watch J1335 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J1335
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.