A4641 — Radiopharmaceutical, diagnostic, not otherwise classified
A4641 is a HCPCS Level II code for radiopharmaceutical, diagnostic, not otherwise classified. It belongs to the Transportation, Medical & Surgical Supplies, Administrative section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusC
Contractor-priced. Your MAC establishes the RVUs and the payment amount case by case, usually after reviewing documentation. There is no national amount to compute.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for A4641
- Long descriptor
- Radiopharmaceutical, diagnostic, not otherwise classified
- Short descriptor
- Radiopharm dx agent noc
- Added
- January 1, 1994
- BETOS
- I1E
- Pricing indicator
- 51 — Other
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Drugs.
Codes adjacent to A4641
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If A4641 is not quite right, the correct code is very often within a few positions of it.
- A4633Replacement bulb/lamp for ultraviolet light therapy system, each
- A4634Replacement bulb for therapeutic light box, tabletop model
- A4635Underarm pad, crutch, replacement, each
- A4636Replacement, handgrip, cane, crutch, or walker, each
- A4637Replacement, tip, cane, crutch, walker, each.
- A4638Replacement battery for patient-owned ear pulse generator, each
- A4639Replacement pad for infrared heating pad system, each
- A4640Replacement pad for use with medically necessary alternating pressure pad owned by patient
- A4642Indium in-111 satumomab pendetide, diagnostic, per study dose, up to 6 millicuries
- A4648Tissue marker, implantable, any type, each
- A4649Surgical supply; miscellaneous
- A4650Implantable radiation dosimeter, each
- A4651Calibrated microcapillary tube, each
- A4652Microcapillary tube sealant
- A4653Peritoneal dialysis catheter anchoring device, belt, each
- A4657Syringe, with or without needle, each
Questions about A4641
What is HCPCS code A4641?
A4641 is a HCPCS Level II code for radiopharmaceutical, diagnostic, not otherwise classified. It sits in the Transportation, Medical & Surgical Supplies, Administrative section.
Does Medicare cover A4641?
The CMS HCPCS file marks A4641 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is A4641 paid under the physician fee schedule?
A4641 carries PFS status code C. Contractor-priced. Your MAC establishes the RVUs and the payment amount case by case, usually after reviewing documentation. There is no national amount to compute.