HCPCS A9531
I131 max 100uci
Last reviewed August 2026 · DataLily AI data team
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HCPCS A9531 at a glance
- Code
- A9531
- Code type
- CPT/HCPCS
- Short descriptor
- I131 max 100uci
- Category
- ASC Ancillary
- ASC eligibility
- ASC-eligible (ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is HCPCS code A9531?
HCPCS A9531 is a CPT/HCPCS procedure code for I131 max 100uci. Its official short descriptor is "I131 max 100uci". In the ASC context it is grouped under ASC Ancillary.
Is HCPCS A9531 eligible in an ambulatory surgery center (ASC)?
HCPCS A9531 is an ancillary service that can be provided in the ASC setting when it supports a surgical procedure.
Where is HCPCS A9531 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
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.