CPT Code(s):

  • 88302, 88304, 88305, 88307 or 88309, depending on the case complexity
  • 88312 and 88313 if special stains are used
  • 88342 if immunoperoxidase stains are utilized

Specimen Requirements:

Skin tissue must be fixed in formalin. If immunobullous disease is suspected, submit half of the tissue in Michel’s fixative for a direct immunofluorescence study. See Immunofluorescence: Direct, Skin in this directory for specimen requirements.

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

Storage/Transport Temperature: Submit specimens according to Biological Substance, Category B, shipping guidelines.

Unacceptable Conditions:
  • Frozen specimens
  • Specimens not in appropriate fixative
Stability (collection to initiation of testing):
  • Ambient: Indefinitely
  • Refrigerated: Indefinitely
  • Frozen: Unacceptable


Microscopic exam


1 – 3 days