Q4171 – Interfyl, 1 mg
HCPCS Level II code · Q codes: Temporary Codes
HCPCS codeQ4171
- Long description
- Interfyl, 1 mg
- Short description
- Interfyl, 1 mg
- Pricing indicator
13Priced by the Medicare contractor (carrier)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
O1EOther drugs- Added
- January 1, 2017
- Last change
- January 1, 2026 – No change
Frequently asked questions
What is HCPCS code Q4171?
Q4171 is a HCPCS Level II code for interfyl, 1 mg.
Does Medicare cover Q4171?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby Q codes
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- Q4167 – Truskin, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4168 – Amnioband, 1 mg
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- Q4172 – Puraply or puraply am, per square centimeter
- Q4173 – Palingen or palingen xplus, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4174 – Palingen or promatrx, 0.36 mg per 0.25 cc
- Q4175 – Miroderm, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4176 – Neopatch or therion, per square centimeter (add-on, list separately in addition to primary procedure)
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Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.