Test Name: CD23


Methodology: Flow Cytometry


Test Description

Staining for CD23 detects subsets of peripheral blood mature B-lymphocytes and some B-cell found in the mantle zone of the B-lymphoid follicles and normal follicular dendritic cells. It is expressed by some B-cell neoplasms (e.g. chronic lymphocytic leukemia, hairy cell leukemia, marginal zone lymphoma).


Specimen Requirements

Testing for this antigen is typically performed as a part of the B-cell neoplasm add-on panel. For customized testing panels including this antigen, please contact the Medical Director of the Flow Cytometry laboratory.


Storage and Transport

Maintain specimen at room temperature. Do not refrigerate or freeze. Use cold pack for transport, making sure cold pack is not in direct contact with specimen.


Specimen Rejection Criteria

Click here to reference the specimen rejection criteria.


Turn Around Time (TAT): 24 hours


CPT Codes*: 88184, 88185, 88187, 88188, 88189


*The CPT codes provided with our Test Descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.