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Tryptase pin



Methodology: IHC

Clinical Significance:
Identifies: The most abundant secretory granule derived serine proteinase used as a marker of masts cells. Subcellular Localization: Membranous and cytoplasmic


Disease State: Mastocytosis

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