A9548 HCPCS code: Indium in-111 pentetate, diagnostic, per 0.5 millicurie
A9548 is the HCPCS Level II code for indium in-111 pentetate, diagnostic, per 0.5 millicurie. In 2024 Medicare paid an average of $1,034.35 per service for A9548 across 28 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 15% from 2022 to 2024 (33 to 28 services). In 2024, about 12 clinicians billed Medicare for A9548 for 19 beneficiaries.
Code details
| Field | Value |
|---|---|
| Section | A codes — Transportation, medical/surgical supplies and miscellaneous |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 53 |
| BETOS category | I1E |
| Added | 2006-01-01 |
| Last action effective | 2025-01-01 |
Who bills A9548 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 12 |
| Medicare beneficiaries | 19 |
| States with claims | 0 |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for A9548, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 33 | 27 | $812.13 | $649.05 |
| 2023 | 35 | 32 | $1,258.18 | $1,003.72 |
| 2024 | 28 | 19 | $1,297.78 | $1,034.35 |
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 A9548
- 2006-01-01: A9548 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 A9548?
A9548 is the HCPCS Level II code for indium in-111 pentetate, diagnostic, per 0.5 millicurie. Short descriptor: "In111 pentetate".
How much does Medicare pay for A9548?
In 2024, the average Medicare payment was $1,034.35 per service (average allowed $1,297.78).
Does Medicare cover A9548?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
How many units of A9548 can be billed per day?
2 on outpatient hospital claims; 2 on practitioner claims (NCCI medically unlikely edits).
Related A95 codes
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- A9507 — Indium in-111 capromab pendetide, diagnostic, per study dose, up to 10 millicuries
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Next steps
- Run a reimbursement report for a device billed under A9548
- Watch A9548 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A9548
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.