A4641 HCPCS Level II code: Radiopharmaceutical, diagnostic, not otherwise classified
A4641 is the HCPCS code for “Radiopharmaceutical, diagnostic, not otherwise classified” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
A4641Radiopharmaceutical, diagnostic, not otherwise classified
Short description: Radiopharm dx agent noc
HCPCS · United States
Medicare details
The indicators CMS publishes with A4641 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Drugs
- Type of service
- Diagnostic radiology
- BETOS category
- Standard imaging - nuclear medicine
- Added
- Jan 1, 1994
Where A4641 sits
- 1A codesAmbulance, supplies and miscellaneous
- 2Active code A4641Radiopharmaceutical, diagnostic, not otherwise classified
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code A4641 mean?
A4641 is the HCPCS code for “Radiopharmaceutical, diagnostic, not otherwise classified” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover A4641?
CMS lists A4641’s Medicare coverage as “Carrier judgment” and its pricing as “Drugs”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside A4641
All A codesA4635Underarm pad, crutch, replacement, eachA4636Replacement, handgrip, cane, crutch, or walker, eachA4637Replacement, tip, cane, crutch, walker, each.A4638Replacement battery for patient-owned ear pulse generator, eachA4639Replacement pad for infrared heating pad system, eachA4640Replacement pad for use with medically necessary alternating pressure pad owned by patientA4642Indium in-111 satumomab pendetide, diagnostic, per study dose, up to 6 millicuriesA4648Tissue marker, implantable, any type, eachA4649Surgical supply; miscellaneousA4650Implantable radiation dosimeter, eachA4651Calibrated microcapillary tube, eachA4652Microcapillary tube sealant