Immunohistochemistry/In-Situ Hybridization (Technical Only)

CPT Code(s):

  • 88342
  • 88365

Specimen Requirements:

Send formalin-fixed tissues on unstained, charged (+) slides.

For fixative and more information, contact the UF Health Pathology Laboratories Client Services Department at 888.375.LABS (5227).

Storage/Transport Temperature: Ship specimens at 20° – 25° C and according to Biological Substance, Category B, shipping guidelines.

Unacceptable Conditions:
  • Frozen specimens
Stability (collection to initiation of testing):
  • Ambient: Indefinitely
  • Frozen: Unacceptable


Technical-only stains aid in diagnosis


Immunohistochemistry and in-situ hybridization


2 days