Ordering Recommendation

Use to identify unexpected red blood cell (RBC) antibodies in a patient's serum and, when applicable, in antibodies coating the patient's RBCs. For use in prenatal patients only to identify unexpected RBC antibodies and aid in determining the risk for hemolytic disease of the fetus and newborn (HDFN) and to evaluate the patient for Rh immunoglobulin administration. Do not use this test for nonprenatal patients. For nonprenatal patients, order RBC Antibody Identification Package IRL (3017610).

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation

3 (7mL) lavender (K2EDTA) or pink (K2EDTA) AND 1 (7mL) plain red.

Specimen Preparation

Do not freeze. Transport 3 (7 mL) whole blood EDTA AND 1 (7 mL) whole blood plain red. (Min: 10 mL EDTA and 3 mL plain red)

Storage/Transport Temperature


Unacceptable Conditions

Separator tubes.


Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Unacceptable


Qualitative Hemagglutination (HA)/Qualitative Solid Phase Red Cell Adherence




3-5 days

Reference Interval

Interpretive Data

Compliance Category



This test is for prenatal patients only.  Includes: ABO/Rh type, direct Coombs, RBC antibody identification by one method.

Titers will be performed, at an additional charge, on prenatal specimens for clinically significant antibodies.

Red blood cell antigen testing will be added as indicated. Depending on antibody complexity, additional testing may be required. Additional charges apply.

Hotline History


CPT Codes

86900; 86901; 86880; 86870; additional CPT codes may apply


Component Test Code* Component Chart Name LOINC
0010248 ABORh 882-1
0013008 Direct Coombs 13946-9
0013500 Antibody Identification
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.


  • 0013005
  • Newborn/Maternal Antibody Work-Up
  • Prenatal Ab ID, RBC
RBC Antibody ID Prenatal - Reflex to Titer