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CBC (includes Differential and Platelets) with Smear Review

Test Code


CPT Code(s)

85007, 85027


WBC, RBC, Hemoglobin, Hematocrit, MCV, MCH, MCHC, RDW, Platelet Count, MPV and Differential with Pathologist Review.
If abnormal cells are noted on a manual review of the peripheral blood smear or if the automated differential information meets specific criteria, a full manual differential will be performed.

Preferred Specimen(s)

Whole blood full EDTA (lavender-top) tube

Minimum Volume

Microtainer 500 µL • 1 mL whole blood EDTA (lavender-top) tube

Collection Instructions

Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect EDTA (lavender-top) tube last. Traumatic draw can introduce thromboplastin and trap WBC and platelets. Refrigeration can precipitate fibrin and trap WBC and platelets.

Transport Container

EDTA (lavender-top) tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 48 hours

Reject Criteria

Gross hemolysis • Clotted • Quantity not sufficient • Age of specimen


Electronic Cell Sizing/Counting/Cytometry/Microscopy • Microscopic Examination/Pathologist Review

Performing Laboratory

Quest Diagnostics NY/NJ

Reference Range(s)

See Laboratory Report

Clinical Significance

To assist in diagnosis of hematologic disorders.

Alternative Name(s)

Peripheral Smear Review with CBC

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name
35000010DIFFERENTIAL33255-1Cell fractions
59055MONOCYTES,%5905-5Monocytes/100 leukocytes
7062BASOPHILS,%706-2Basophils/100 leukocytes
7138EOSINOPHILS,%713-8Eosinophils/100 leukocytes
7369TOTAL LYMPHOCYTES,%736-9Lymphocytes/100 leukocytes
7708TOTAL NEUTROPHILS,%770-8Neutrophils/100 leukocytes
7765MPV776-5Platelet mean volume
7773PLATELET COUNT777-3Platelets
7856MCH785-6Erythrocyte mean corpuscular hemoglobin
7864MCHC786-4Erythrocyte mean corpuscular hemoglobin concentration
7872MCV787-2Erythrocyte mean corpuscular volume
7880RDW788-0Erythrocyte distribution width
35000012HEMATOPATHOLOGY REVIEW14869-2Pathologist review

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

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.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.