A9512 HCPCS code: Technetium tc-99m pertechnetate, diagnostic, per millicurie
A9512 is the HCPCS Level II code for technetium tc-99m pertechnetate, diagnostic, per millicurie. In 2024 Medicare paid an average of $12.59 per service for A9512 across 2,634 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 30 per day on outpatient hospital claims. Medicare volume rose 21% from 2022 to 2024 (2,182 to 2,634 services). In 2024, about 116 clinicians billed Medicare for A9512 for 429 beneficiaries; New York, Florida, Arizona accounted for 79% of services.
Code details
| Field | Value |
|---|---|
| Section | A codes — Transportation, medical/surgical supplies and miscellaneous |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 57 |
| BETOS category | I1E |
| Added | 2003-01-01 |
| Last action effective | 2006-01-01 |
Who bills A9512 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 116 |
| Medicare beneficiaries | 429 |
| States with claims | 10 |
| Share of services in top 3 states (New York, Florida, Arizona) | 79% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for A9512, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 2,182 | 335 | $12.04 | $9.52 |
| 2023 | 2,343 | 419 | $16.84 | $13.45 |
| 2024 | 2,634 | 429 | $15.81 | $12.59 |
States with the most A9512 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| New York | 1,276 | $16.71 |
| Florida | 395 | $3.56 |
| Arizona | 181 | $1.48 |
| Maryland | 167 | $26.03 |
| California | 136 | $1.48 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 30 | Prescribing Information |
| practitioner claims | 30 | Prescribing Information |
Medicare policy articles for this code
- A56494: Billing and Coding: Cardiovascular Nuclear Medicine (CGS Administrators, LLC (MAC - Part A, MAC - Part B))
- A56743: Billing and Coding: Cardiovascular Nuclear Medicine (Wellpoint Federal (MAC - Part A, MAC - Part B))
Covered diagnoses (219 ICD-10-CM codes)
The diagnoses most often listed as covered in the policy articles above:
| ICD-10-CM | Diagnosis | Articles listing it |
|---|---|---|
| I20.0 | Unstable angina | 2 |
| I20.1 | Angina pectoris with documented spasm | 2 |
| I20.81 | Angina pectoris with coronary microvascular dysfunction | 2 |
| I20.89 | Other forms of angina pectoris | 2 |
| I20.9 | Angina pectoris, unspecified | 2 |
| I21.01 | ST elevation (STEMI) myocardial infarction involving left main coronary artery | 2 |
| I21.02 | ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery | 2 |
| I21.09 | ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall | 2 |
| I21.11 | ST elevation (STEMI) myocardial infarction involving right coronary artery | 2 |
| I21.19 | ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall | 2 |
Showing 10 of 219. The full list, non-covered diagnoses and CSV export are in Caduvo.
What changed for A9512
- 2003-01-01: A9512 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 A9512?
A9512 is the HCPCS Level II code for technetium tc-99m pertechnetate, diagnostic, per millicurie. Short descriptor: "Tc99m pertechnetate".
How much does Medicare pay for A9512?
In 2024, the average Medicare payment was $12.59 per service (average allowed $15.81).
Does Medicare cover A9512?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Which diagnoses support coverage for A9512?
Medicare policy articles that cite A9512 list 219 covered ICD-10-CM diagnosis codes across 2 articles. The most cited include I20.0 (Unstable angina), I20.1 (Angina pectoris with documented spasm), I20.81 (Angina pectoris with coronary microvascular dysfunction). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.
How many units of A9512 can be billed per day?
30 on outpatient hospital claims; 30 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
- A9513 — Lutetium lu 177, dotatate, therapeutic, 1 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 A9512
- Watch A9512 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A9512
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.