All ASC CPT codes
ASC Surgical · CPT/HCPCS

CPT 31235

Nsl/sins ndsc dx sphn sinusc

CPT 31235 at a glance

Code
31235
Code type
CPT/HCPCS
Short descriptor
Nsl/sins ndsc dx sphn sinusc
Category
ASC Surgical
ASC payment status
Payable in an ASC (surgical)
CMS addendum
AA (Surgical)
Typical setting
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).

What is CPT code 31235?

CPT 31235 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Nsl/sins ndsc dx sphn sinusc". In the ASC context it is grouped under ASC Surgical.

Is CPT 31235 payable in an ambulatory surgery center (ASC)?

CPT 31235 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 31235 typically performed?

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

Which specialties use CPT 31235?

CPT 31235 is most associated with General Surgery, Otolaryngology (ENT).

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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