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ASC Ancillary · CPT/HCPCS

HCPCS A9579

Gad-base mr contrast nos,1ml

HCPCS A9579 at a glance

Code
A9579
Code type
CPT/HCPCS
Short descriptor
Gad-base mr contrast nos,1ml
Category
ASC Ancillary
ASC payment status
Payable in an ASC (ancillary)
CMS addendum
BB (Ancillary)
Typical setting
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).

What is HCPCS code A9579?

HCPCS A9579 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Gad-base mr contrast nos,1ml". In the ASC context it is grouped under ASC Ancillary.

Is HCPCS A9579 payable in an ambulatory surgery center (ASC)?

HCPCS A9579 is a covered ancillary service (CMS Addendum BB). Medicare reimburses it in the ASC setting when it is integral to a covered ASC surgical procedure.

Where is HCPCS A9579 typically performed?

Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).

Reference information compiled from the CMS April 2026 ASC payment addenda (AA, BB, EE). Codes, descriptors, and ASC payment status change with each CMS update. This is a coding reference, not billing, coding, or legal advice. Always verify against the current CMS addenda and individual payer policy before billing. CPT is a registered trademark of the American Medical Association.

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