J1439 HCPCS code: Injection, ferric carboxymaltose, 1 mg
J1439 is the HCPCS Level II code for injection, ferric carboxymaltose, 1 mg. In 2024 Medicare paid an average of $0.87 per service for J1439 across 48,977,066 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 1000 per day on outpatient hospital claims. Medicare volume fell 18% from 2022 to 2024 (60,093,517 to 48,977,066 services). In 2024, about 4,190 clinicians billed Medicare for J1439 for 29,775 beneficiaries; New York, California, Florida accounted for 28% 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 | 2015-01-01 |
| Last action effective | 2015-01-01 |
Who bills J1439 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 4,190 |
| Medicare beneficiaries | 29,775 |
| States with claims | 49 |
| Share of services in top 3 states (New York, California, Florida) | 28% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for J1439, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 60,093,517 | 36,126 | $1.11 | $0.88 |
| 2023 | 58,870,857 | 35,298 | $1.10 | $0.87 |
| 2024 | 48,977,066 | 29,775 | $1.09 | $0.87 |
States with the most J1439 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| New York | 5,248,176 | $0.87 |
| California | 4,738,229 | $0.87 |
| Florida | 3,701,505 | $0.87 |
| New Jersey | 3,428,468 | $0.87 |
| Illinois | 3,060,891 | $0.87 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 1000 | Prescribing Information |
| practitioner claims | 1000 | Prescribing Information |
What changed for J1439
- 2015-01-01: J1439 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 J1439?
J1439 is the HCPCS Level II code for injection, ferric carboxymaltose, 1 mg. Short descriptor: "Inj ferric carboxymaltos 1mg".
How much does Medicare pay for J1439?
In 2024, the average Medicare payment was $0.87 per service (average allowed $1.09).
Does Medicare cover J1439?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
How many units of J1439 can be billed per day?
1000 on outpatient hospital claims; 1000 on practitioner claims (NCCI medically unlikely edits).
Related J14 codes
- J1410 — Injection, estrogen conjugated, per 25 mg
- J1411 — Injection, etranacogene dezaparvovec-drlb, per therapeutic dose
- J1412 — Injection, valoctocogene roxaparvovec-rvox, per ml, containing nominal 2 x 10^13 vector genomes
- J1413 — Injection, delandistrogene moxeparvovec-rokl, per therapeutic dose
- J1414 — Injection, fidanacogene elaparvovec-dzkt, per therapeutic dose
- J1426 — Injection, casimersen, 10 mg
- J1427 — Injection, viltolarsen, 10 mg
- J1428 — Injection, eteplirsen, 10 mg
- J1429 — Injection, golodirsen, 10 mg
- J1430 — Injection, ethanolamine oleate, 100 mg
- J1434 — Injection, fosaprepitant (focinvez), 1 mg
- J1435 — Injection, estrone, per 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 J1439
- Watch J1439 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J1439
Sources: CMS HCPCS Level II release October 2026; 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.