A2004 — Xcellistem, 1 mg
A2004 is a HCPCS Level II code for xcellistem, 1 mg. It belongs to the Transportation, Medical & Surgical Supplies, Administrative 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 A2004
- Long descriptor
- Xcellistem, 1 mg
- Short descriptor
- Xcellistem, 1 mg
- Added
- January 1, 2022
- BETOS
- P5A
- 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 A2004
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If A2004 is not quite right, the correct code is very often within a few positions of it.
- A0434Specialty care transport (sct)
- A0435Fixed wing air mileage, per statute mile
- A0436Rotary wing air mileage, per statute mile
- A0888Noncovered ambulance mileage, per mile (e.g., for miles traveled beyond closest appropriate facility)
- A0998Ambulance response and treatment, no transport
- A0999Unlisted ambulance service
- A2001Innovamatrix ac, per square centimeter (add-on, list separately in addition to primary procedure)
- A2002Mirragen advanced wound matrix, per square centimeter (add-on, list separately in addition to primary procedure)
- A2005Microlyte matrix, per square centimeter (add-on, list separately in addition to primary procedure)
- A2006Novosorb synpath dermal matrix, per square centimeter (add-on, list separately in addition to primary procedure)
- A2007Restrata, per square centimeter (add-on, list separately in addition to primary procedure)
- A2008Theragenesis, per square centimeter (add-on, list separately in addition to primary procedure)
- A2009Symphony, per square centimeter (add-on, list separately in addition to primary procedure)
- A2010Apis, per square centimeter (add-on, list separately in addition to primary procedure)
- A2011Supra sdrm, per square centimeter (add-on, list separately in addition to primary procedure)
- A2012Suprathel, per square centimeter (add-on, list separately in addition to primary procedure)
Questions about A2004
What is HCPCS code A2004?
A2004 is a HCPCS Level II code for xcellistem, 1 mg. It sits in the Transportation, Medical & Surgical Supplies, Administrative section.
Does Medicare cover A2004?
The CMS HCPCS file marks A2004 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 A2004 paid under the physician fee schedule?
A2004 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.