A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

ERG, IHC without Interpretation

Test Code
91313


CPT Codes
88342

Preferred Specimen
Formalin-fixed, paraffin-embedded tissue block submitted in an IHC specimen transport kit


Other Acceptable Specimens
3 unstained, (+) positively charged slides


Transport Temperature
Room temperature


Specimen Stability
Room temperature: Indefinitely
Refrigerated: Indefinitely
Frozen: Unacceptable


Methodology
Immunohistochemistry (IHC)

Setup Schedule
Setup: Mon-Fri; Report available: Next day


Reference Range
See Laboratory Report


Clinical Significance
A marker of prostate cancer. Overexpression of ERG protein correlates with TMPRSS2-ERG chromosomal translocation, which are seen in 50-70% of prostate carcinomas. ERG is not expressed in benign prostatic epithelium but can be expressed in PIN. Among other tumor types, ERG is a marker of vascular tumors but is only rarely seen in carcinomas from other tissue sites.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.