We are proud to announce that PhenoPath is now a Quest Diagnostics Company.

CD123 pin



Methodology: IHC

Clinical Significance:
Identifies the interleukin-3 receptor. CD123 is strongly expressed in plasmacytoid dendritic cell neoplasms, at variable intensity in all classical hairy cell leukemia, most B-ALLs, and in a subset of AMLs. Subcellular Localization: Membranous


Disease State: Hairy Cell Leukemia

CPT Code(s): 88342 or 88341. The CPT codes provided 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 payer being billed.

Turnaround Time: Within 1-2 business days of receipt

Schedule: Monday - Friday

Specimen Requirements:
• Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR - • 1 unstained slide for each test requested plus 3-4 additional unstained slides cut at 4µm