ABO Grouping

CPT: 86900
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  • Blood Grouping
  • Blood Type

Special Instructions

If a CBC and/or an antibody screening test is ordered with this test, please submit a separate 4 mL specimen for each test.

Expected Turnaround Time

1 - 2 days

Related Documents

Specimen Requirements


Whole blood


4 mL

Minimum Volume

1 mL


Lavender-top (EDTA) tube

Storage Instructions

Specimens should be tested as soon as possible. Samples that cannot be tested immediately should be stored at 2°C to 8°C. Do not freeze red cells.

Stability Requirements



Room temperature

7 days


7 days

Causes for Rejection

Gross hemolysis; bacterial or other contamination

Test Details


Determination of ABO blood group for transfusion candidates. Blood grouping of expectant mothers and newborns may indicate potential for ABO hemolytic disease of the fetus/newborn.


Abnormal plasma proteins, cold autoagglutinins, positive direct antiglobulin test, and, in some cases, bacteremia may interfere with test interpretation.




Fung MK, Grossman JB, Hillyer CD, Westhoff CM, eds. AABB Technical Manual. 18th ed. 2014.


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
006056 ABO Grouping 883-9 006056 ABO Grouping 883-9
Reflex Table for ABO Grouping
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 114067 ABO Grouping 006051 ABO Grouping 883-9

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