Q3028: Injection, interferon beta-1a, 1 mcg for subcutaneous use
Q3028 is a HCPCS Level II code for injection, interferon beta-1a, 1 mcg for subcutaneous use. It belongs to the Temporary Codes section. Medicare does not pay it: see the coverage note below before you bill it.
Medicare coverage: Not payable by Medicare
Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q4-Oct. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusI
Not valid for Medicare purposes. Medicare uses another code.
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 Q3028 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
- 0, never payable MAI 3: Date of Service Edit: Clinical · CMS Policy
- outpatient
- 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 2026Q4.
The CMS record for Q3028
- Long descriptor
- Injection, interferon beta-1a, 1 mcg for subcutaneous use
- Short descriptor
- Inj beta interferon sq 1 mcg
- Added
- January 1, 2014
- 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 Q3028
HCPCS has no hierarchy: related items simply sit next to each other in the numbering. If Q3028 is not quite right, the correct code is very often within a few positions of it.
- Q2054Lisocabtagene maraleucel, up to 110 million autologous anti-cd19 car-positive viable t cells, including leukapheresis and dose preparation procedures, per therapeutic dose
- Q2055Idecabtagene vicleucel, up to 510 million autologous b-cell maturation antigen (bcma) directed car-positive t cells, including leukapheresis and dose preparation procedures, per therapeutic dose
- Q2056Ciltacabtagene autoleucel, up to 100 million autologous b-cell maturation antigen (bcma) directed car-positive t cells, including leukapheresis and dose preparation procedures, per therapeutic dose
- Q2057Afamitresgene autoleucel, including leukapheresis and dose preparation procedures, per therapeutic dose
- Q2058Obecabtagene autoleucel, 10 up to 400 million cd19 car-positive viable t cells, including leukapheresis and dose preparation procedures, per infusion
- Q3001Radioelements for brachytherapy, any type, each
- Q3014Telehealth originating site facility fee
- Q3027Injection, interferon beta-1a, 1 mcg for intramuscular use
- Q3031Collagen skin test
- Q4001Casting supplies, body cast adult, with or without head, plaster
- Q4002Cast supplies, body cast adult, with or without head, fiberglass
- Q4003Cast supplies, shoulder cast, adult (11 years +), plaster
- Q4004Cast supplies, shoulder cast, adult (11 years +), fiberglass
- Q4005Cast supplies, long arm cast, adult (11 years +), plaster
- Q4006Cast supplies, long arm cast, adult (11 years +), fiberglass
- Q4007Cast supplies, long arm cast, pediatric (0-10 years), plaster