Technetium tc-99m exametazime, diagnostic, per study dose, up to 25 millicuries
Code effective Jan 01, 2025
HCPCS Section
Transportation Services Including Ambulance, Medical & Surgical Supplies
A9521 is a valid 2026 HCPCS code meaning Technetium tc-99m exametazime, diagnostic, per study dose, up to 25 millicuries or (Tc99m exametazime) for short. HCPCS A9521 has been effective since 01/01/2025 and applies to Diagnostic radiology.
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HCPCS Level II Code Section A - Transportation Services Including Ambulance, Medical & Surgical Supplies |
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| HCPCS Code | A9521 |
|---|---|
| Description |
Long description:
Short description: |
| HCPCS Pricing indicator |
57 - Other carrier priced
|
| Multiple pricing indicator |
A - Not applicable as HCPCS priced under one methodology
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| Coverage code | C - Carrier judgment |
| ASC payment group code | Effective Jan 01, 2025 - This procedure is approved to be performed in an ambulatory surgical center. |
| BETOS2 code | I1E - Standard imaging - nuclear medicine |
| HCPCS Action code | N - No maintenance for this code |
| Type of service | 4 - Diagnostic radiology |
| Effective date | Effective Jan 01, 2025 |
| Date added | Added Jan 01, 2003 |
1 Two-digit numeric codes are Level I code modifiers copyrighted© by the American Medical Association's Current Procedural Terminology (CPT).
2 BETOS stands for “Berenson-Eggers Type Of Service”
HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 6/23/2026
CPT® is a registered trademark of the American Medical Association (AMA). All rights reserved.