CK17, IHC with Interpretation

Test Code

90156

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

Instructions

Please include surgical pathology report.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: Indefinitely
Refrigerated: Indefinitely
Frozen: Unacceptable

Methodology
Immunohistochemistry (IHC)

Setup Schedule

Set up: Mon-Fri; Report available: 3 days

Reference Range

Interpretive report

Clinical Significance

CK17 is a marker of basal layer squamous epithelium and the basal epithelial phenotype in breast carcinoma. It may also be useful in the detection of pancreaticobiliary carcinomas, which are usually positive.

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.