Epidermal Growth Factor Receptor (EGFR), IHC (10479X)

Test Code

AP EGFR

Quest Code

10479N

Alias/See Also

10479N

CPT Codes
88342

Preferred Specimen

Tissue, formalin fixed, paraffin embedded tissue block

Other Acceptable Specimens

5-4 micron unstained sections

Instructions

Pathology report is required

Transport Temperature

Room temperature

Specimen Stability

Room temperature: Indefinite
Refrigerated: Indefinite
Frozen: Unacceptable

Methodology
Immunohistochemistry (IHC)

Setup Schedule

Set up: Tues, Sat; Report availalbe: 3-4 days

Reference Range

See Laboratory Report

Clinical Significance

To determine overexpression of EGFR in tumor cells. Efficacy of therapies depends on the expression of EGFR in tumor cells and has been reported to be associated with more aggressive diseases.

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

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.