G0462 – Immunohistochemistry or immunocytochemistry, per specimen; each additional single or multiplex antibody stain (list separately in addition to code for primary procedure)

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

Discontinued December 31, 2014 Carrier judgment

HCPCS codeG0462
Long description
Immunohistochemistry or immunocytochemistry, per specimen; each additional single or multiplex antibody stain (list separately in addition to code for primary procedure)
Short description
Immunohisto/cyto chem add
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 G0462?

G0462 is a HCPCS Level II code for immunohistochemistry or immunocytochemistry, per specimen; each additional single or multiplex antibody stain (list separately in addition to code for primary procedure). It was discontinued on December 31, 2014.

Does Medicare cover G0462?

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.