HCPCS A9554
I125 iothalamate, diagnostic
HCPCS A9554 at a glance
- Code
- A9554
- Code type
- CPT/HCPCS
- Short descriptor
- I125 iothalamate, dx
- Category
- ASC Ancillary
- ASC eligibility
- ASC-eligible (ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
- Medicare ASC rate
- $649.64 national · 2026Q2
What is HCPCS code A9554?
HCPCS A9554 is a CPT/HCPCS procedure code. Its official short descriptor is "I125 iothalamate, dx". In the ASC context it is grouped under ASC Ancillary.
Is HCPCS A9554 eligible in an ambulatory surgery center (ASC)?
HCPCS A9554 is an ancillary service that can be provided in the ASC setting when it supports a surgical procedure.
Where is HCPCS A9554 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is the Medicare ASC payment rate for HCPCS A9554?
The national Medicare ASC payment rate for HCPCS A9554 is $649.64 (CMS ASC Payment System, 2026Q2). This is the national, unadjusted amount published by CMS; 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.