A9581 HCPCS code: Injection, gadoxetate disodium, 1 ml
A9581 is the HCPCS Level II code for injection, gadoxetate disodium, 1 ml. In 2024 Medicare paid an average of $11.14 per service for A9581 across 92,832 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 20 per day on outpatient hospital claims. Medicare volume rose 14% from 2022 to 2024 (81,627 to 92,832 services). In 2024, about 1,515 clinicians billed Medicare for A9581 for 7,569 beneficiaries; New York, California, Minnesota accounted for 60% of services.
Code details
| Field | Value |
|---|---|
| Section | A codes — Transportation, medical/surgical supplies and miscellaneous |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 51 — Drug or biological (priced per ASP/average sales price rules) |
| BETOS category | I2D |
| Added | 2010-01-01 |
| Last action effective | 2010-01-01 |
Who bills A9581 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 1,515 |
| Medicare beneficiaries | 7,569 |
| States with claims | 37 |
| Share of services in top 3 states (New York, California, Minnesota) | 60% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for A9581, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 81,627 | 6,670 | $14.15 | $11.22 |
| 2023 | 85,659 | 6,936 | $14.04 | $11.13 |
| 2024 | 92,832 | 7,569 | $14.04 | $11.14 |
States with the most A9581 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| New York | 29,630 | $11.41 |
| California | 19,600 | $11.52 |
| Minnesota | 6,183 | $11.49 |
| Florida | 4,474 | $8.38 |
| Tennessee | 4,051 | $11.37 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 20 | Clinical: Data |
| practitioner claims | 20 | Clinical: Data |
What changed for A9581
- 2010-01-01: A9581 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 A9581?
A9581 is the HCPCS Level II code for injection, gadoxetate disodium, 1 ml. Short descriptor: "Gadoxetate disodium inj".
How much does Medicare pay for A9581?
In 2024, the average Medicare payment was $11.14 per service (average allowed $14.04).
Does Medicare cover A9581?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
How many units of A9581 can be billed per day?
20 on outpatient hospital claims; 20 on practitioner claims (NCCI medically unlikely edits).
Related A95 codes
- A9500 — Technetium tc-99m sestamibi, diagnostic, per study dose
- A9501 — Technetium tc-99m teboroxime, diagnostic, per study dose
- A9502 — Technetium tc-99m tetrofosmin, diagnostic, per study dose
- A9503 — Technetium tc-99m medronate, diagnostic, per study dose, up to 30 millicuries
- A9504 — Technetium tc-99m apcitide, diagnostic, per study dose, up to 20 millicuries
- A9505 — Thallium tl-201 thallous chloride, diagnostic, per millicurie
- A9506 — Graphite crucible for preparation of technetium tc 99m-labeled carbon aerosol, one crucible
- A9507 — Indium in-111 capromab pendetide, diagnostic, per study dose, up to 10 millicuries
- A9508 — Iodine i-131 iobenguane sulfate, diagnostic, per 0.5 millicurie
- A9509 — Iodine i-123 sodium iodide, diagnostic, per millicurie
- A9510 — Technetium tc-99m disofenin, diagnostic, per study dose, up to 15 millicuries
- A9512 — Technetium tc-99m pertechnetate, diagnostic, per millicurie
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 A9581
- Watch A9581 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A9581
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.