Complete Blood Count (CBC)

Cleveland Heartlab C, Standard Laboratory Tests, Test

CPT Code:

CBC with Differential: 85025
CBC without Differential: 85027

Order Code:

CBC with Differential: C915
Includes: WBC, RBC, Hemoglobin, Hematocrit, MCV, MCH, MCHC, RDW, Platelet Count, MPV, and Differential (Absolute and Percent – Neutrophils, Lymphocytes, Monocytes, Eosinophils, and Basophils)

CBC without Differential: C917
Includes: WBC, RBC, Hemoglobin, Hematocrit, MCV, MCH, MCHC, RDW, Platelet Count, and MPV

ABN Requirement:  No
Specimen: EDTA Whole Blood
Volume:  4.0 mL
Minimum Volume:  1.0 mL
Container: EDTA (Lavender Top) tube


  1. Collect and label sample according to standard protocols.
  2. Gently invert tube 8-10 times immediately after draw. DO NOT SHAKE.
  3. Do not centrifuge.
  4. Store sample at room temperature (15°C to 25°C) after collection until time of transport.

Transport: Transport sample refrigerated (2°C to 8°C) and ship the same day per packaging instructions included with the provided shipping box.


Ambient (15-25°C): 2 days
Refrigerated (2-8°C): 3 days
Frozen (-20°C): Not Acceptable

Causes for Rejection: Clotted samples; grossly hemolyzed samples; specimens other than EDTA whole blood; specimens with plasma removed; insufficient volume; contamination from IV fluid; improper labeling; samples not stored properly; samples older than stability limits

Methodology: Electronic Cell Sizing/Counting/Cytometry
Turn Around Time: 1 to 3 days
Reference Range: See Laboratory Report for reference ranges

Clinical Significance: A complete blood count is used as a screening test for various disease states to include: anemia, leukemia, and inflammatory processes.

The CPT codes provided 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 payer being billed.