HCPCS Q4309
Via matrix, per sq cm
HCPCS Q4309 at a glance
- Code
- Q4309
- Code type
- CPT/HCPCS
- Short descriptor
- Via matrix, per sq cm
- Category
- ASC Ancillary
- ASC eligibility
- ASC-eligible (ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
- Medicare ASC rate
- $127.14 national · 2026Q2
What is HCPCS code Q4309?
HCPCS Q4309 is a CPT/HCPCS procedure code. Its official short descriptor is "Via matrix, per sq cm". In the ASC context it is grouped under ASC Ancillary.
Is HCPCS Q4309 eligible in an ambulatory surgery center (ASC)?
HCPCS Q4309 is an ancillary service that can be provided in the ASC setting when it supports a surgical procedure.
Where is HCPCS Q4309 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is the Medicare ASC payment rate for HCPCS Q4309?
The national Medicare ASC payment rate for HCPCS Q4309 is $127.14 (CMS ASC Payment System, 2026Q2). This is the national, unadjusted amount published by CMS; the amount an individual ambulatory surgery center is paid is adjusted for local wage index and may differ. It reflects Medicare's facility payment only and does not include the surgeon's professional fee.
Reference information about ASC eligibility and typical procedure setting. Codes, descriptors, and ASC-eligibility status change over time. This is a coding reference, not billing, coding, or legal advice. Always verify against current guidance and individual payer policy before scheduling or billing. CPT is a registered trademark of the American Medical Association.