All ASC CPT codes
ASC Surgical · CPT/HCPCS

CPT 11423

Exc h-f-nk-sp b9+marg 2.1-3

CPT 11423 at a glance

Code
11423
Code type
CPT/HCPCS
Short descriptor
Exc h-f-nk-sp b9+marg 2.1-3
Category
ASC Surgical
ASC payment status
Payable in an ASC (surgical)
CMS addendum
AA (Surgical)
Typical setting
Ambulatory surgery center (POS 24); also commonly performed in an office or clinic (POS 11).

What is CPT code 11423?

CPT 11423 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Exc h-f-nk-sp b9+marg 2.1-3". In the ASC context it is grouped under ASC Surgical.

Is CPT 11423 payable in an ambulatory surgery center (ASC)?

CPT 11423 appears on Medicare's ASC Covered Procedures List (CMS Addendum AA), so Medicare reimburses it when the surgery is performed in a certified ambulatory surgery center.

Where is CPT 11423 typically performed?

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

Which specialties use CPT 11423?

CPT 11423 is most associated with General Surgery, Plastic Surgery.

Specialties that use this code

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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