J9145 HCPCS code: Injection, daratumumab, 10 mg
J9145 is the HCPCS Level II code for injection, daratumumab, 10 mg. In 2024 Medicare paid an average of $48.61 per service for J9145 across 1,397,149 services. Its Medicare coverage code is D (Special coverage instructions apply): Medicare covers it when its national or local coverage criteria are met. The NCCI unit limit is 240 per day on outpatient hospital claims. Medicare volume fell 53% from 2022 to 2024 (2,980,368 to 1,397,149 services). In 2024, about 1,469 clinicians billed Medicare for J9145 for 1,286 beneficiaries; Texas, Florida, California accounted for 42% of services.
Code details
| Field | Value |
|---|---|
| Section | J codes — Drugs administered other than oral method |
| Coverage code | D — Special coverage instructions apply |
| Pricing indicator | 51 — Drug or biological (priced per ASP/average sales price rules) |
| BETOS category | O1D — Chemotherapy |
| Added | 2017-01-01 |
| Last action effective | 2017-01-01 |
Who bills J9145 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 1,469 |
| Medicare beneficiaries | 1,286 |
| States with claims | 28 |
| Share of services in top 3 states (Texas, Florida, California) | 42% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for J9145, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 2,980,368 | 2,676 | $56.47 | $45.11 |
| 2023 | 2,056,965 | 1,794 | $58.93 | $46.95 |
| 2024 | 1,397,149 | 1,286 | $61.02 | $48.61 |
States with the most J9145 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Texas | 253,501 | $49.28 |
| Florida | 149,374 | $48.97 |
| California | 147,054 | $49.10 |
| Illinois | 91,535 | $48.62 |
| Arizona | 74,030 | $49.32 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 240 | Prescribing Information |
| practitioner claims | 240 | Prescribing Information |
What changed for J9145
- 2017-01-01: J9145 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 J9145?
J9145 is the HCPCS Level II code for injection, daratumumab, 10 mg. Short descriptor: "Injection, daratumumab 10 mg".
How much does Medicare pay for J9145?
In 2024, the average Medicare payment was $48.61 per service (average allowed $61.02).
Does Medicare cover J9145?
Coverage code D — Special coverage instructions apply. Medicare covers it when its national or local coverage criteria are met.
How many units of J9145 can be billed per day?
240 on outpatient hospital claims; 240 on practitioner claims (NCCI medically unlikely edits).
Related J91 codes
- J9100 — Injection, cytarabine, 100 mg
- J9118 — Injection, calaspargase pegol-mknl, 10 units
- J9119 — Injection, cemiplimab-rwlc, 1 mg
- J9120 — Injection, dactinomycin, 0.5 mg
- J9130 — Dacarbazine, 100 mg
- J9144 — Injection, daratumumab, 10 mg and hyaluronidase-fihj
- J9150 — Injection, daunorubicin, 10 mg
- J9151 — Injection, daunorubicin citrate, liposomal formulation, 10 mg
- J9153 — Injection, liposomal, 1 mg daunorubicin and 2.27 mg cytarabine
- J9155 — Injection, degarelix, 1 mg
- J9160 — Injection, denileukin diftitox, 300 micrograms
- J9161 — Injection, denileukin diftitox-cxdl, 1 mcg
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Next steps
- Run a reimbursement report for a device billed under J9145
- Watch J9145 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J9145
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.