Test Overview
Test Methodology

Immunohistochemistry (IHC)

Reference Range *

Negative (no expression). Interpretive report provided.

Test Details
Days Set Up
Tuesday, Thursday (specimen must be received by lab no later than 9:00 am to be included in that day's run)
Synonyms
  • PD-1 IHC Stain
  • PD1 IHC Stain
  • PDL1 IHC Stain
  • PDL-1 IHC Stain
  • PD-L1 IHC Stain
  • PD-L1 Keytruda (lung)
  • PD-L1 by Immunohistochemistry 22C3 Antibody (PDL1K)
Laboratory
IPOX/Muscle Lab
Section
Immunoperoxidase
Specimen Requirements
Collection Instructions

Formalin-fixed, paraffin-embedded tissue block; or 3 unstained glass, "positively charged" slides with 4-microns formalin-fixed, paraffin-embedded tissue. Slides must be dried before shipping (air dry overnight or dry in 60 degree C oven for 20 minutes). Both blocks and slides should be stored at room temperature.

Normal Volume
Formalin-fixed, paraffin-embedded tissue or unstained slides.
Additional Information

Test includes pathologist interpretation of results billed as a separate additional charge or billed to the client as a global fee.

Billing
CPT Code
88360
NY State Approved
No