J1300 HCPCS code: Injection, eculizumab, 10 mg
J1300 is the HCPCS Level II code for injection, eculizumab, 10 mg. CMS terminated J1300 on 2025-03-31; do not bill it for later dates of service. In 2024 Medicare paid an average of $173.80 per service for J1300 across 583,090 services. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. Medicare volume fell 49% from 2022 to 2024 (1,134,126 to 583,090 services). In 2024, about 638 clinicians billed Medicare for J1300 for 344 beneficiaries; Texas, Alabama, Florida accounted for 47% 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 | 2008-01-01 |
| Last action effective | 2025-04-01 |
| Terminated | 2025-03-31 |
Who bills J1300 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 638 |
| Medicare beneficiaries | 344 |
| States with claims | 10 |
| Share of services in top 3 states (Texas, Alabama, Florida) | 47% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for J1300, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 1,134,126 | 645 | $221.40 | $176.78 |
| 2023 | 700,092 | 415 | $217.54 | $173.30 |
| 2024 | 583,090 | 344 | $218.17 | $173.80 |
States with the most J1300 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Texas | 64,861 | $171.87 |
| Alabama | 60,960 | $176.64 |
| Florida | 58,080 | $176.01 |
| Tennessee | 47,730 | $176.35 |
| New York | 44,325 | $174.24 |
What changed for J1300
- 2008-01-01: J1300 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 J1300?
J1300 is the HCPCS Level II code for injection, eculizumab, 10 mg. Short descriptor: "Eculizumab injection".
How much does Medicare pay for J1300?
In 2024, the average Medicare payment was $173.80 per service (average allowed $218.17).
Does Medicare cover J1300?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Related J13 codes
- 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
- J1324 — Injection, enfuvirtide, 1 mg
Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.
Next steps
- Run a reimbursement report for a device billed under J1300
- Watch J1300 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J1300
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.