All ASC CPT codes
ASC Ancillary · CPT/HCPCS

HCPCS J7331

Synojoynt, inj., 1 mg

HCPCS J7331 at a glance

Code
J7331
Code type
CPT/HCPCS
Short descriptor
Synojoynt, inj., 1 mg
Category
ASC Ancillary
ASC payment status
Payable in an ASC (ancillary)
CMS addendum
BB (Ancillary)
Typical setting
Ambulatory surgery center (POS 24); also commonly performed in an office or clinic (POS 11).

What is HCPCS code J7331?

HCPCS J7331 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Synojoynt, inj., 1 mg". In the ASC context it is grouped under ASC Ancillary.

Is HCPCS J7331 payable in an ambulatory surgery center (ASC)?

HCPCS J7331 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 J7331 typically performed?

Ambulatory surgery center (POS 24); also commonly performed in an office or clinic (POS 11).

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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