A9554 – Iodine i-125 sodium iothalamate, diagnostic, per study dose, up to 10 microcuries

HCPCS Level II code · A codes: Transportation, Medical & Surgical Supplies, Miscellaneous & Experimental

Active code Carrier judgment

HCPCS codeA9554
Long description
Iodine i-125 sodium iothalamate, diagnostic, per study dose, up to 10 microcuries
Short description
I125 iothalamate, dx
Pricing indicator
53 Statute
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
I1E Standard imaging - nuclear medicine
ASC
Approved for ambulatory surgical centers
Added
January 1, 2006
Last change
January 1, 2026 – No change

Frequently asked questions

What is HCPCS code A9554?

A9554 is a HCPCS Level II code for iodine i-125 sodium iothalamate, diagnostic, per study dose, up to 10 microcuries.

Does Medicare cover A9554?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby A codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.