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PTEN, IHC without Interpretation

Test Code
90228


CPT Codes
88342

Preferred Specimen
Formalin fixed paraffin embedded tissue in an IHC specimen transport kit


Other Acceptable Specimens
Unstained charged(+) slides submitted in IHC specimen transport kit (x5)


Transport Temperature
Room temperature


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


Methodology
Immunohistochemistry

Setup Schedule
A.M.


Clinical Significance
The phosphatase PTEN is a tumor suppressor whose deletion (or less commonly mutation) is associated with tumor progression and results in loss of PTEN protein expression.




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.