Q4189 — Artacent ac, 1 mg
Q4189 is a HCPCS Level II code for artacent ac, 1 mg. It belongs to the Temporary Codes section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusC
Contractor-priced. Your MAC establishes the RVUs and the payment amount case by case, usually after reviewing documentation. There is no national amount to compute.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for Q4189
- Long descriptor
- Artacent ac, 1 mg
- Short descriptor
- Artacent ac, 1 mg
- Added
- January 1, 2019
- BETOS
- O1E
- Pricing indicator
- 13 — Physician fee schedule
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Price established by carriers — not otherwise classified, individual determination, or carrier discretion.
Codes adjacent to Q4189
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If Q4189 is not quite right, the correct code is very often within a few positions of it.
- Q4181Amnio wound, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4182Transcyte, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4183Surgigraft, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4184Cellesta or cellesta duo, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4185Cellesta flowable amnion (25 mg per cc); per 0.5 cc
- Q4186Epifix, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4187Epicord, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4188Amnioarmor, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4190Artacent ac, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4191Restorigin, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4192Restorigin, 1 cc
- Q4193Coll-e-derm, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4194Novachor, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4195Puraply, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4196Puraply am, per square centimeter (add-on, list separately in addition to primary procedure)
- Q4197Puraply xt, per square centimeter (add-on, list separately in addition to primary procedure)
Questions about Q4189
What is HCPCS code Q4189?
Q4189 is a HCPCS Level II code for artacent ac, 1 mg. It sits in the Temporary Codes section.
Does Medicare cover Q4189?
The CMS HCPCS file marks Q4189 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is Q4189 paid under the physician fee schedule?
Q4189 carries PFS status code C. Contractor-priced. Your MAC establishes the RVUs and the payment amount case by case, usually after reviewing documentation. There is no national amount to compute.