HCPCS Q4438
Pretect per square cm
Last reviewed August 2026 · DataLily AI data team
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HCPCS Q4438 at a glance
- Code
- Q4438
- Code type
- CPT/HCPCS
- Short descriptor
- Pretect 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 Q4438?
HCPCS Q4438 is a CPT/HCPCS procedure code for pretect per square cm. Its official short descriptor is "Pretect per sq cm". In the ASC context it is grouped under ASC Ancillary.
Is HCPCS Q4438 eligible in an ambulatory surgery center (ASC)?
HCPCS Q4438 is an ancillary service that can be provided in the ASC setting when it supports a surgical procedure.
Where is HCPCS Q4438 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is the Medicare ASC payment rate for HCPCS Q4438?
The national Medicare ASC payment rate for HCPCS Q4438 is $127.14 (Medicare ASC Payment System, 2026Q2). This is the national, unadjusted Medicare amount; 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. Read the DataLily AI data methodology.