G0461 – Immunohistochemistry or immunocytochemistry, per specimen; first single or multiplex antibody stain

HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)

Discontinued December 31, 2014 Carrier judgment

HCPCS codeG0461
Long description
Immunohistochemistry or immunocytochemistry, per specimen; first single or multiplex antibody stain
Short description
Immunohisto/cyto chem 1st st
Pricing indicator
13 Priced by the Medicare contractor (carrier)
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
T1G Lab tests - other (Medicare fee schedule)
Added
January 1, 2014
Last change
January 1, 2015 – No change
Termination date
December 31, 2014

Frequently asked questions

What is HCPCS code G0461?

G0461 is a HCPCS Level II code for immunohistochemistry or immunocytochemistry, per specimen; first single or multiplex antibody stain. It was discontinued on December 31, 2014.

Does Medicare cover G0461?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby G codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.