HCPCS A9543
Y90 ibritumomab, rx
Last reviewed August 2026 · DataLily AI data team
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HCPCS A9543 at a glance
- Code
- A9543
- Code type
- CPT/HCPCS
- Short descriptor
- Y90 ibritumomab, rx
- Category
- ASC Ancillary
- ASC eligibility
- ASC-eligible (ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
- Medicare ASC rate
- $56,824.55 national · 2026Q2
What is HCPCS code A9543?
HCPCS A9543 is a CPT/HCPCS procedure code for Y90 ibritumomab, rx. Its official short descriptor is "Y90 ibritumomab, rx". In the ASC context it is grouped under ASC Ancillary.
Is HCPCS A9543 eligible in an ambulatory surgery center (ASC)?
HCPCS A9543 is an ancillary service that can be provided in the ASC setting when it supports a surgical procedure.
Where is HCPCS A9543 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is the Medicare ASC payment rate for HCPCS A9543?
The national Medicare ASC payment rate for HCPCS A9543 is $56,824.55 (Medicare ASC Payment System, 2026Q2). This is the national, unadjusted Medicare amount; the amount an individual ambulatory surgery center is paid is adjusted for local wage index and may differ. It reflects Medicare's facility payment only and does not include the surgeon's professional fee.
Reference information about ASC eligibility and typical procedure setting. Codes, descriptors, and ASC-eligibility status change over time. This is a coding reference, not billing, coding, or legal advice. Always verify against current guidance and individual payer policy before scheduling or billing. CPT is a registered trademark of the American Medical Association. Read the DataLily AI data methodology.