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Test Code HCL Hairy Cell Leukemia Panel, Blood or Bone Marrow

Performing Laboratory

Northwell Health Laboratories


Flow Cytometry

Includes CD3, CD4, CD5, CD7, CD8, CD10, CD11c, CD14, CD16/56, CD19, CD20, CD22, CD23, CD25, CD103, FMC-7, HLA-DR, kappa, and lambda.

Panel will be modified as appropriate.

Reference Values

Pathologist interpretation

Test Classification and CPT Coding

88184 - first marker

88185 x 18 - additional markers

Physician Office Specimen Requirements

Call the Tumor Marker (Flow Cytometry) Laboratory at 516-562-4169 for collection instructions and consultation on selection of test(s).


Submit only 1 of the following specimens:



Container/Tube:  Green-top (sodium heparin) tube(s)

Specimen:  3 mL of heparinized whole blood

Transport Temperature:  Ambient

Collection Instructions:

Note:  1. Indicate blood on request form.
2. Label specimen appropriately (blood).


Bone Marrow

Obtain 3 mL of bone marrow in a green-top (sodium heparin) tube(s). Forward promptly at ambient temperature.

Note:  1. Indicate bone marrow on request form.
2. Label specimen appropriately (bone marrow).

Day(s) and Time(s) Performed

Monday through Sunday