FLOW LYMPHOCYTE SUBSET

Test Code

LAB931

Alias/See Also

1232000022

CPT Codes
86360 86357 86359 86356 86355

Includes

WBC FLOW
LYMPHOCYTE % FLOW
LYMPHOCYTE ABSOLUTE FLOW
CD4(T4) %
CD4(T4) ABSOLUTE
CD8(T8) %
CD8(T8) ABSOLUTE
CD4/CD8 RATIO
CD19(B4) %
CD19 (B4) ABSOLUTE
CD3(T3) %
CD3(T3) ABSOLUTE
CD56(NK) %
CD56(NK) ABSOLUTE
CD45

Preferred Specimen

K2 EDTA Lavender Top Tube

Minimum Volume

1 mL blood

Instructions

Collect peripheral blood in 5 mL (1 mL minimum) K2 EDTA Lavender Top Tube. Invert immediately and gently mix with anticoagulant.

Transport Temperature

Room Temperature

Specimen Stability

Must be analyzed within 30 hours of collection

Methodology
Beckman Coulter Navios Sysmex XF 1600

Reference Range

WBC FLOW
Males/Females:
Adults: 5,000-10,000 /cmm
LYMPHOCYTE % FLOW
Males/Females:
Adults: 20.0-35.0%
LYMPHOCYTE ABSOLUTE FLOW
Males/Females:
Adults: 1,000-3,500 /cmm
CD4(T4) %
Males/Females:
Adults: 35.0-61.0%
CD4(T4) ABSOLUTE
Males/Females:
Adults: 350-2,135 /cmm
CD8(T8) %
Males/Females:
Adults: 12.0-38.0%
CD8(T8) ABSOLUTE
Males/Females:
Adults: 120-1,330 /cmm
CD4/CD8 RATIO
Males/Females:
Adults: 0.7-3.5
CD19(B4) %
Males/Females:
Adults: 2.0-21.0%
CD19 (B4) ABSOLUTE
Males/Females:
Adults: 20-735 /cmm
CD3(T3) %
Males/Females:
Adults: 50.0-89.0%
CD3(T3) ABSOLUTE
Males/Females:
Adults: 620-2,975 /cmm
CD56(NK) %
Males/Females:
Adults: 1.0-20.0%
CD56(NK) ABSOLUTE
Males/Females:
Adults: 10-700 /cmm
CD45
N/A

Performing Laboratory
LITTLE ROCK LABORATORY

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.