J1809 — Injection, fosdenopterin, 0.1 mg
J1809 is a HCPCS Level II code for injection, fosdenopterin, 0.1 mg. It belongs to the Drugs Administered Other Than Oral Method 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 statusE
Excluded from the physician fee schedule by regulation. Payment, where it exists, comes from another fee schedule (drugs via ASP, supplies via DMEPOS, and so on).
Global period: XXX
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The CMS record for J1809
- Long descriptor
- Injection, fosdenopterin, 0.1 mg
- Short descriptor
- Inj, fosdenopterin, 0.1mg
- Added
- October 1, 2025
- BETOS
- O1E
- Pricing indicator
- 51 — Other
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.
Drugs.
Codes adjacent to J1809
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If J1809 is not quite right, the correct code is very often within a few positions of it.
- J1756Injection, iron sucrose, 1 mg
- J1786Injection, imiglucerase, 10 units
- J1790Injection, droperidol, up to 5 mg
- J1800Injection, propranolol hcl, up to 1 mg
- J1805Injection, esmolol hydrochloride, 10 mg
- J1806Injection, esmolol hydrochloride (wg critical care), not therapeutically equivalent to j1805, 10 mg
- J1807Injection, ethacrynate sodium, 1 mg
- J1808Injection, folic acid, 0.1 mg
- J1810Injection, droperidol and fentanyl citrate, up to 2 ml ampuleterminated
- J1811Insulin (fiasp) for administration through dme (i.e., insulin pump) per 50 units
- J1812Insulin (fiasp), per 5 units
- J1813Insulin (lyumjev) for administration through dme (i.e., insulin pump) per 50 units
- J1814Insulin (lyumjev), per 5 units
- J1815Injection, insulin, per 5 units
- J1817Insulin for administration through dme (i.e., insulin pump) per 50 units
- J1823Injection, inebilizumab-cdon, 1 mg
Questions about J1809
What is HCPCS code J1809?
J1809 is a HCPCS Level II code for injection, fosdenopterin, 0.1 mg. It sits in the Drugs Administered Other Than Oral Method section.
Does Medicare cover J1809?
The CMS HCPCS file marks J1809 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 J1809 paid under the physician fee schedule?
J1809 carries PFS status code E. Excluded from the physician fee schedule by regulation. Payment, where it exists, comes from another fee schedule (drugs via ASP, supplies via DMEPOS, and so on).