Cell Count and Differential, Fluid, Other

Test Code
20913


CPT Codes
89051

Includes
Color, Appearance, Total Nucleated Cell Count, Neutrophils %, Lymphocytes %, Monocyte/Macrophage %, Eosinophils %, Basophils %, Mesothelial %


Preferred Specimen
3 mL body fluid collected in EDTA (lavender-top), or sodium heparin (green-top) tube


Minimum Volume
1 mL


Other Acceptable Specimens
3 mL bronchial wash or lavage collected in a plastic screw-cap vial


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: 48 hours
Refrigerated: 48 hours
Frozen: Unacceptable


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted


Methodology
Automated analyzer and/or Manual Microscopic examination

Setup Schedule
Monday-Saturday All Shifts Report available: Next Day


Limitations
Traumatic tap will affect results.


Clinical Significance
Immunologic, mechanical, chemical or bacteriologic damage may alter the permeability of the membrane and capillaries to produce varying degrees of inflammatory response.


Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153


Last Updated: November 6, 2024


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.