J1826 — Injection, interferon beta-1a, 30 mcg
J1826 is a HCPCS Level II code for injection, interferon beta-1a, 30 mcg. 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
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
Medically Unlikely Edits — units per day
The most units of J1826 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 1 unit MAI 3 — Date of Service Edit: Clinical · Prescribing Information
- outpatient
- 1 unit MAI 3 — Date of Service Edit: Clinical · Prescribing Information
- DME supplier
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for J1826
- Long descriptor
- Injection, interferon beta-1a, 30 mcg
- Short descriptor
- Interferon beta-1a inj
- Added
- January 1, 2011
- BETOS
- O1E
- Pricing indicator
- 00 — Not priced by Part B
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.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to J1826
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If J1826 is not quite right, the correct code is very often within a few positions of it.
- 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
- J1830Injection, interferon beta-1b, 0.25 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)
- J1833Injection, isavuconazonium, 1 mg
- J1834Injection, isoniazid, 1 mg
- J1835Injection, itraconazole, 50 mg
- J1836Injection, metronidazole, 10 mg
- J1837Injection, posaconazole, 1 mg
- J1840Injection, kanamycin sulfate, up to 500 mgterminated
- J1850Injection, kanamycin sulfate, up to 75 mgterminated
Questions about J1826
What is HCPCS code J1826?
J1826 is a HCPCS Level II code for injection, interferon beta-1a, 30 mcg. It sits in the Drugs Administered Other Than Oral Method section.
Does Medicare cover J1826?
The CMS HCPCS file marks J1826 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 J1826 paid under the physician fee schedule?
J1826 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).