A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Direct Immunofluorescence, Tissue Biopsy

Test Code
LAB3328


Alias/See Also
1232600016 / ARUP test code 92572


CPT Codes
88346 88350 (5)

Preferred Specimen
Sterile Container


Minimum Volume
4-6 mm of tissue


Instructions
Collect in a Sterile Container Tissue: skin, mucosa (oral, conjunctival, genital, esophageal), other epithelium (gastrointestinal, respiratory, urinary). Specimen Preparation: Transport tissue (optimal 4-6 mm) in Michel's medium (ARUP supply #45462) available online through eSupply using ARUP ConnectÖ or call ARUP Client Services at 800-522-2787. Also acceptable: Zeus tissue fixative. Label container with transport medium type, if not an ARUP-supplied vial.


Transport Temperature
Room Temperature, Refrigerated is also acceptable


Specimen Stability
Room Temperature, Refrigerated is also acceptable


Reference Range
SEE RESULT REPORT


Performing Laboratory
ASSOCIATED REGIONAL AND UNIVERSITY PATHOLOGISTS, INC (ARUP)


Last Updated: August 26, 2026


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.