INI-1, IHC without Interpretation

Test Code
90216


CPT Codes
88342

Preferred Specimen
Formalin-fixed, paraffin-embedded tissue block


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


Transport Container
IHC Specimen Transport Kit


Transport Temperature
Room temperature


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


Methodology
Immunohistochemistry

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


Clinical Significance
INI-1 is a tumor suppressor gene that is often deleted (or mutated) in medulloblastomas, but not in some other neural and neural crest-derived neoplasms.


Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153




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.